{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "55bc43ad",
   "metadata": {},
   "source": [
    "# Online Buy Listings\n",
    "\n",
    "Analysis of `finder/data/online_listings_buy.parquet`."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "1560f01a",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-05-17T10:23:47.594553Z",
     "iopub.status.busy": "2026-05-17T10:23:47.594488Z",
     "iopub.status.idle": "2026-05-17T10:23:47.858517Z",
     "shell.execute_reply": "2026-05-17T10:23:47.858194Z"
    }
   },
   "outputs": [],
   "source": [
    "from pathlib import Path\n",
    "\n",
    "import plotly.express as px\n",
    "import polars as pl\n",
    "\n",
    "pl.Config.set_tbl_rows(45)\n",
    "pl.Config.set_fmt_str_lengths(80)\n",
    "\n",
    "DATA_PATH = Path(\"/volumes/projects/perfect-postcode/finder/data/test/online_listings_buy.parquet\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "6c5d1f0a",
   "metadata": {},
   "source": [
    "## Load"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "09a54208",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-05-17T10:23:47.859716Z",
     "iopub.status.busy": "2026-05-17T10:23:47.859600Z",
     "iopub.status.idle": "2026-05-17T10:23:47.955592Z",
     "shell.execute_reply": "2026-05-17T10:23:47.955345Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Rows: 242\n",
      "Columns: 25\n"
     ]
    },
    {
     "data": {
      "text/html": [
       "<div><style>\n",
       ".dataframe > thead > tr,\n",
       ".dataframe > tbody > tr {\n",
       "  text-align: right;\n",
       "  white-space: pre-wrap;\n",
       "}\n",
       "</style>\n",
       "<small>shape: (3, 2)</small><table border=\"1\" class=\"dataframe\"><thead><tr><th>provider</th><th>len</th></tr><tr><td>str</td><td>u32</td></tr></thead><tbody><tr><td>&quot;OnTheMarket&quot;</td><td>85</td></tr><tr><td>&quot;Rightmove&quot;</td><td>99</td></tr><tr><td>&quot;Zoopla&quot;</td><td>58</td></tr></tbody></table></div>"
      ],
      "text/plain": [
       "shape: (3, 2)\n",
       "┌─────────────┬─────┐\n",
       "│ provider    ┆ len │\n",
       "│ ---         ┆ --- │\n",
       "│ str         ┆ u32 │\n",
       "╞═════════════╪═════╡\n",
       "│ OnTheMarket ┆ 85  │\n",
       "│ Rightmove   ┆ 99  │\n",
       "│ Zoopla      ┆ 58  │\n",
       "└─────────────┴─────┘"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "text/html": [
       "<div><style>\n",
       ".dataframe > thead > tr,\n",
       ".dataframe > tbody > tr {\n",
       "  text-align: right;\n",
       "  white-space: pre-wrap;\n",
       "}\n",
       "</style>\n",
       "<small>shape: (45, 25)</small><table border=\"1\" class=\"dataframe\"><thead><tr><th>provider</th><th>Bedrooms</th><th>Bathrooms</th><th>Number of bedrooms &amp; living rooms</th><th>lon</th><th>lat</th><th>Postcode</th><th>Postcode source</th><th>Extracted postcode</th><th>Inferred postcode</th><th>Listing raw address</th><th>Address per Property Register</th><th>UPRN</th><th>Property number or name</th><th>Leasehold/Freehold</th><th>Property type</th><th>Property sub-type</th><th>Price qualifier</th><th>Total floor area (sqm)</th><th>Listing URL</th><th>Listing features</th><th>Listing date</th><th>Listing status</th><th>Asking price</th><th>Asking price per sqm</th></tr><tr><td>str</td><td>i32</td><td>i32</td><td>i32</td><td>f64</td><td>f64</td><td>str</td><td>str</td><td>str</td><td>str</td><td>str</td><td>str</td><td>str</td><td>str</td><td>str</td><td>str</td><td>str</td><td>str</td><td>f64</td><td>str</td><td>list[str]</td><td>datetime[μs]</td><td>str</td><td>i64</td><td>i32</td></tr></thead><tbody><tr><td>&quot;OnTheMarket&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.129102</td><td>51.463636</td><td>&quot;SW4 7EF&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW4 7EF&quot;</td><td>&quot;Bedford Road, London&quot;</td><td>&quot;Bedford Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Apartment&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19209711/&quot;</td><td>[&quot;Tenure: Leasehold (111 years remaining)&quot;, &quot;Top floor one-bedroom apartment within a modern development completed in 2021&quot;, … &quot;Generous double bedroom, contemporary bathroom and separate utility/storage room&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>525000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.100233</td><td>51.466129</td><td>&quot;SE5 9AA&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SE5 9AA&quot;</td><td>&quot;Padfield Road, London, SE5&quot;</td><td>&quot;Padfield Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19522441/&quot;</td><td>[&quot;Tenure: Share of freehold (999 years remaining)&quot;, &quot;One Bedroom&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>275000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>4</td><td>1</td><td>5</td><td>-0.108913</td><td>51.471775</td><td>&quot;SW9 6NN&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 6NN&quot;</td><td>&quot;Lord Holland Lane, Myatts Fields South, London&quot;</td><td>&quot;Lord Holland Lane, Myatts Fields South, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced House&quot;</td><td>&quot;Offers in excess of&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/18847208/&quot;</td><td>[&quot;Tenure: Freehold&quot;, &quot;Four Bedrooms&quot;, … &quot;Superb Condition&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>600000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.107904</td><td>51.473026</td><td>&quot;SW9 6BF&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 6BF&quot;</td><td>&quot;Mostyn Road, London SW9&quot;</td><td>&quot;Mostyn Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19305103/&quot;</td><td>[&quot;Tenure: Leasehold&quot;, &quot;One bedroom&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>350000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.115372</td><td>51.475374</td><td>&quot;SW9 0RG&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0RG&quot;</td><td>&quot;Hackford Road, London SW9&quot;</td><td>&quot;Hackford Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19601952/&quot;</td><td>[&quot;Tenure: Share of freehold&quot;, &quot;Separate dining and living room&quot;, … &quot;Study&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>475000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>0</td><td>1</td><td>1</td><td>-0.117911</td><td>51.476212</td><td>&quot;SW9 0HP&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0HP&quot;</td><td>&quot;Clapham Road, London SW9&quot;</td><td>&quot;Clapham Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19601638/&quot;</td><td>[&quot;Tenure: Leasehold&quot;, &quot;Nearest station 0.3mi.&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>225000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.105579</td><td>51.463969</td><td>&quot;SW9 8SE&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 8SE&quot;</td><td>&quot;Coldharbour Lane, Brixton, London, SW9&quot;</td><td>&quot;Coldharbour Lane, Brixton, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19601141/&quot;</td><td>[&quot;Tenure: Leasehold&quot;, &quot;Fantastic two bedroom period flat&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>575000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.116437</td><td>51.466426</td><td>&quot;SW9 9FX&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 9FX&quot;</td><td>&quot;Stockwell Road, SW9&quot;</td><td>&quot;Stockwell Road&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19599310/&quot;</td><td>[&quot;Tenure: Leasehold (120 years remaining)&quot;, &quot;One double bedroom&quot;, &quot;Chain-free&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>435000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.102355</td><td>51.46566</td><td>&quot;SW9 8RU&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 8RU&quot;</td><td>&quot;Coldharbour Lane, SW9&quot;</td><td>&quot;Coldharbour Lane&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;Offers over&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19599313/&quot;</td><td>[&quot;Tenure: Leasehold (127 years remaining)&quot;, &quot;Two double bedrooms&quot;, &quot;Chain-free&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>450000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.114496</td><td>51.466421</td><td>&quot;SW9 0FH&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0FH&quot;</td><td>&quot;Stockwell Park Walk, London, SW9&quot;</td><td>&quot;Stockwell Park Walk, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;Offers in excess of&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/18060975/&quot;</td><td>[&quot;Tenure: Leasehold (113 years remaining)&quot;, &quot;Stylish and well-presented two-bedroom, two-bathroom apartment&quot;, &quot;Study&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>500000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.126918</td><td>51.469851</td><td>&quot;SW4 6BF&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW4 6BF&quot;</td><td>&quot;20 Fergusson Mews, London, SW4&quot;</td><td>&quot;20 Fergusson Mews, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;Offers in excess of&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19266851/&quot;</td><td>[&quot;Tenure: Leasehold&quot;, &quot;Gated Development&quot;, … &quot;Chain-free&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>650000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.116535</td><td>51.466385</td><td>&quot;SW9 9FX&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 9FX&quot;</td><td>&quot;Stockwell Road, Stockwell, London, SW9&quot;</td><td>&quot;Stockwell Road, Stockwell, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;Offers in excess of&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19167472/&quot;</td><td>[&quot;Tenure: Leasehold (125 years remaining)&quot;, &quot;Stylish finish&quot;, … &quot;Chain-free&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>450000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.1109</td><td>51.462364</td><td>&quot;SW9 8GA&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 8GA&quot;</td><td>&quot;Milles Square, Brixton, London, SW9&quot;</td><td>&quot;Milles Square, Brixton, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19592532/&quot;</td><td>[&quot;Tenure: Leasehold (155 years remaining)&quot;, &quot;Neatly presented 1 bedroom flat in a convenient location&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>340000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>2</td><td>1</td><td>3</td><td>-0.110269</td><td>51.46006</td><td>&quot;SE24 0LW&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SE24 0LW&quot;</td><td>&quot;Railton Road, London SE24&quot;</td><td>&quot;Railton Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19591254/&quot;</td><td>[&quot;Tenure: Leasehold&quot;, &quot;Two Double Bedrooms&quot;, &quot;Chain-free&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>500000</td><td>null</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.126297</td><td>51.466742</td><td>&quot;SW9 9LE&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 9LE&quot;</td><td>&quot;Hemberton Road, London SW9&quot;</td><td>&quot;Hemberton Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.onthemarket.com/details/19591126/&quot;</td><td>[&quot;Tenure: Share of freehold&quot;, &quot;Chain Free&quot;, … &quot;Study&quot;]</td><td>null</td><td>&quot;For sale&quot;</td><td>550000</td><td>null</td></tr><tr><td>&quot;Rightmove&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.121569</td><td>51.471079</td><td>&quot;SW9 9EU&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 9EU&quot;</td><td>&quot;Stockwell Road, London, SW9&quot;</td><td>&quot;Stockwell Road, London&quot;</td><td>null</td><td>null</td><td>null</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Apartment&quot;</td><td>&quot;Guide Price&quot;</td><td>null</td><td>&quot;https://www.rightmove.co.uk/properties/89076063#/?channel=RES_BUY&quot;</td><td>[&quot;Within easy reach of local amenities, green spaces and transport connections&quot;, &quot;Excellent value-add opportunity for owner-occupiers and investors&quot;, … &quot;Well-proportioned one-bedroom apartment in a popular SW9 location&quot;]</td><td>2026-05-29 14:30:37</td><td>&quot;For sale&quot;</td><td>310000</td><td>null</td></tr><tr><td>&quot;Rightmove&quot;</td><td>5</td><td>4</td><td>9</td><td>-0.11817</td><td>51.47115</td><td>&quot;SW9 0DG&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0DG&quot;</td><td>&quot;Stockwell Park Crescent II, London SW9&quot;</td><td>&quot;Stockwell Park Crescent II, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;&quot;</td><td>310.6</td><td>&quot;https://www.rightmove.co.uk/properties/174610352#/?channel=RES_BUY&quot;</td><td>[]</td><td>2026-04-17 18:34:21</td><td>&quot;For sale&quot;</td><td>2595000</td><td>8355</td></tr><tr><td>&quot;Rightmove&quot;</td><td>6</td><td>3</td><td>9</td><td>-0.114727</td><td>51.473247</td><td>&quot;SW9 0AR&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0AR&quot;</td><td>&quot;Groveway, Stockwell&quot;</td><td>&quot;Groveway, Stockwell&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Detached&quot;</td><td>&quot;Detached&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.rightmove.co.uk/properties/174282005#/?channel=RES_BUY&quot;</td><td>[&quot;Early Victorian Family Home&quot;, &quot;Grade II Listed&quot;, … &quot;Wonderful Potential&quot;]</td><td>2026-04-10 11:17:35</td><td>&quot;For sale&quot;</td><td>2295000</td><td>null</td></tr><tr><td>&quot;Rightmove&quot;</td><td>4</td><td>2</td><td>6</td><td>-0.116603</td><td>51.472141</td><td>&quot;SW9 0DD&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0DD&quot;</td><td>&quot;Stockwell Park Road, London, SW9&quot;</td><td>&quot;Stockwell Park Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;&quot;</td><td>216.1</td><td>&quot;https://www.rightmove.co.uk/properties/170781485#/?channel=RES_BUY&quot;</td><td>[&quot;4 bedrooms&quot;, &quot;2 reception rooms&quot;, … &quot;Semi-Detached&quot;]</td><td>2026-01-02 17:30:39</td><td>&quot;For sale&quot;</td><td>2250000</td><td>10412</td></tr><tr><td>&quot;Rightmove&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.11247</td><td>51.46428</td><td>&quot;SW9 7QH&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 7QH&quot;</td><td>&quot;St Johns Buildings, London SW9&quot;</td><td>&quot;St Johns Buildings, London&quot;</td><td>null</td><td>null</td><td>null</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;&quot;</td><td>213.4</td><td>&quot;https://www.rightmove.co.uk/properties/174206714#/?channel=RES_BUY&quot;</td><td>[]</td><td>2026-04-08 17:23:59</td><td>&quot;For sale&quot;</td><td>2100000</td><td>9841</td></tr><tr><td>&quot;Rightmove&quot;</td><td>4</td><td>3</td><td>7</td><td>-0.116765</td><td>51.47089</td><td>&quot;SW9 0DB&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0DB&quot;</td><td>&quot;Stockwell Park Road, London SW9&quot;</td><td>&quot;Stockwell Park Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Guide Price&quot;</td><td>197.5</td><td>&quot;https://www.rightmove.co.uk/properties/88435821#/?channel=RES_BUY&quot;</td><td>[&quot;4 bedrooms&quot;, &quot;2 reception rooms&quot;, … &quot;Garden&quot;]</td><td>2026-05-13 16:21:42</td><td>&quot;For sale&quot;</td><td>2100000</td><td>10633</td></tr><tr><td>&quot;Rightmove&quot;</td><td>5</td><td>3</td><td>8</td><td>-0.113111</td><td>51.478768</td><td>&quot;SW9 0LJ&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0LJ&quot;</td><td>&quot;Crewdson Road, London SW9&quot;</td><td>&quot;Crewdson Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;&quot;</td><td>246.7</td><td>&quot;https://www.rightmove.co.uk/properties/174798002#/?channel=RES_BUY&quot;</td><td>[&quot;5 bedrooms&quot;, &quot;1 reception room&quot;, … &quot;Garden&quot;]</td><td>2026-04-22 16:04:47</td><td>&quot;For sale&quot;</td><td>1900000</td><td>7702</td></tr><tr><td>&quot;Rightmove&quot;</td><td>3</td><td>3</td><td>6</td><td>-0.11805</td><td>51.47091</td><td>&quot;SW9 0DG&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0DG&quot;</td><td>&quot;Stockwell Park Crescent, Stockwell, London, SW9&quot;</td><td>&quot;Stockwell Park Crescent, Stockwell, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Detached&quot;</td><td>&quot;House&quot;</td><td>&quot;&quot;</td><td>156.8</td><td>&quot;https://www.rightmove.co.uk/properties/88376967#/?channel=RES_BUY&quot;</td><td>[&quot;Wonderful 2-bedroom semi-detached house situated over 3 floors&quot;, &quot;Spacious kitchen&quot;, … &quot;Well located for the local shops and amenities of Clapham and Stockwell Road&quot;]</td><td>2026-05-12 16:14:48</td><td>&quot;For sale&quot;</td><td>1695000</td><td>10810</td></tr><tr><td>&quot;Rightmove&quot;</td><td>5</td><td>3</td><td>8</td><td>-0.119192</td><td>51.474381</td><td>&quot;SW9 0RU&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0RU&quot;</td><td>&quot;Stockwell Park Road, London, SW9&quot;</td><td>&quot;Stockwell Park Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;&quot;</td><td>193.2</td><td>&quot;https://www.rightmove.co.uk/properties/167893637#/?channel=RES_BUY&quot;</td><td>[]</td><td>2025-10-07 09:57:34</td><td>&quot;For sale&quot;</td><td>1695000</td><td>8773</td></tr><tr><td>&quot;Rightmove&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.11778</td><td>51.470774</td><td>&quot;SW9 0DG&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0DG&quot;</td><td>&quot;Stockwell Park Crescent, Stockwell&quot;</td><td>&quot;Stockwell Park Crescent, Stockwell&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.rightmove.co.uk/properties/173668991#/?channel=RES_BUY&quot;</td><td>[&quot;Georgian Home&quot;, &quot;Excellent Condition&quot;, … &quot;No Onward Chain&quot;]</td><td>2026-03-25 09:55:49</td><td>&quot;For sale&quot;</td><td>1695000</td><td>null</td></tr><tr><td>&quot;Rightmove&quot;</td><td>4</td><td>3</td><td>7</td><td>-0.121041</td><td>51.465546</td><td>&quot;SW9 9RF&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 9RF&quot;</td><td>&quot;Hargwyne Street, London, SW9&quot;</td><td>&quot;Hargwyne Street, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;&quot;</td><td>165.7</td><td>&quot;https://www.rightmove.co.uk/properties/174050450#/?channel=RES_BUY&quot;</td><td>[]</td><td>2026-04-02 16:51:56</td><td>&quot;For sale&quot;</td><td>1650000</td><td>9958</td></tr><tr><td>&quot;Rightmove&quot;</td><td>5</td><td>2</td><td>7</td><td>-0.119194</td><td>51.470986</td><td>&quot;SW9 0SW&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0SW&quot;</td><td>&quot;Burnley Road, London, SW9&quot;</td><td>&quot;Burnley Road, London&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Guide Price&quot;</td><td>199.5</td><td>&quot;https://www.rightmove.co.uk/properties/88367181#/?channel=RES_BUY&quot;</td><td>[&quot;Quiet Residential Street&quot;, &quot;Versatile Accommodation&quot;, … &quot;Period Features&quot;]</td><td>2026-05-12 14:23:19</td><td>&quot;For sale&quot;</td><td>1595000</td><td>7995</td></tr><tr><td>&quot;Rightmove&quot;</td><td>5</td><td>3</td><td>8</td><td>-0.118914</td><td>51.475262</td><td>&quot;SW9 0QQ&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 0QQ&quot;</td><td>&quot;Clapham Road, Stockwell&quot;</td><td>&quot;Clapham Road, Stockwell&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.rightmove.co.uk/properties/172178081#/?channel=RES_BUY&quot;</td><td>[&quot;Georgian Townhouse&quot;, &quot;Five Double Bedrooms&quot;, … &quot;2617sq.ft&quot;]</td><td>2026-02-13 14:31:16</td><td>&quot;For sale&quot;</td><td>1550000</td><td>null</td></tr><tr><td>&quot;Rightmove&quot;</td><td>8</td><td>1</td><td>9</td><td>-0.114329</td><td>51.465359</td><td>&quot;SW9 7AW&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 7AW&quot;</td><td>&quot;Brixton Road, Brixton High Street&quot;</td><td>&quot;Brixton Road, Brixton High Street&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Guide Price&quot;</td><td>44.0</td><td>&quot;https://www.rightmove.co.uk/properties/88139847#/?channel=RES_BUY&quot;</td><td>[&quot;FREEHOLD MIXED USE COMMERCIAL &amp; RESIDENTIAL&quot;, &quot;GROUND FLOOR TAKE-AWAY - LEASE EXPIRING 2030&quot;, … &quot;NEAR BRIXTON UNDERGROUND &amp; OVERGROUND STATIONS&quot;]</td><td>2026-05-06 17:31:38</td><td>&quot;For sale&quot;</td><td>1550000</td><td>35227</td></tr><tr><td>&quot;Rightmove&quot;</td><td>4</td><td>2</td><td>6</td><td>-0.118903</td><td>51.461726</td><td>&quot;SW9 8DR&quot;</td><td>&quot;coordinates&quot;</td><td>null</td><td>&quot;SW9 8DR&quot;</td><td>&quot;Trinity Gardens, LONDON&quot;</td><td>&quot;Trinity Gardens, LONDON&quot;</td><td>null</td><td>null</td><td>&quot;Freehold&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Terraced&quot;</td><td>&quot;Guide Price&quot;</td><td>114.5</td><td>&quot;https://www.rightmove.co.uk/properties/174274454#/?channel=RES_BUY&quot;</td><td>[&quot;Victorian House&quot;, &quot;Mid Terraced&quot;, … &quot;Central Location&quot;]</td><td>2026-04-10 09:39:04</td><td>&quot;For sale&quot;</td><td>1500000</td><td>13100</td></tr><tr><td>&quot;Zoopla&quot;</td><td>4</td><td>2</td><td>6</td><td>-0.116819</td><td>51.477238</td><td>&quot;SW9 0HD&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 0HU&quot;</td><td>&quot;Caldwell Street, Stockwell SW9&quot;</td><td>&quot;1, Caldwell Street, Stockwell&quot;</td><td>&quot;100021818679&quot;</td><td>&quot;1&quot;</td><td>&quot;Freehold&quot;</td><td>&quot;Other&quot;</td><td>&quot;Property&quot;</td><td>&quot;&quot;</td><td>114.0</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73326946/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>995000</td><td>8728</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>1</td><td>3</td><td>-0.118798</td><td>51.468221</td><td>&quot;SW9 0TZ&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 9PU&quot;</td><td>&quot;Stockwell Road, Stockwell, London SW9&quot;</td><td>&quot;Flat 27, Addington House,, Stockwell Road, Stockwell, London&quot;</td><td>&quot;100021894599&quot;</td><td>&quot;Flat 27, Addington House,&quot;</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>77.9</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/72554891/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>350000</td><td>4493</td></tr><tr><td>&quot;Zoopla&quot;</td><td>5</td><td>3</td><td>8</td><td>-0.119192</td><td>51.474381</td><td>&quot;SW9 0AP&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 0RU&quot;</td><td>&quot;Stockwell Park Road, London SW9&quot;</td><td>&quot;1, Stockwell Park Road, London&quot;</td><td>&quot;100023386020&quot;</td><td>&quot;1&quot;</td><td>&quot;Freehold&quot;</td><td>&quot;Semi-Detached&quot;</td><td>&quot;Semi Detached&quot;</td><td>&quot;&quot;</td><td>194.9</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/69392186/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>1695000</td><td>8697</td></tr><tr><td>&quot;Zoopla&quot;</td><td>3</td><td>2</td><td>5</td><td>-0.122658</td><td>51.469424</td><td>&quot;SW9 9HG&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 9HE&quot;</td><td>&quot;Lingham Street, Stockwell, London SW9&quot;</td><td>&quot;Flat 11 Beale House, 45, Lingham Street, Stockwell, London&quot;</td><td>&quot;100021894650&quot;</td><td>&quot;Flat 11 Beale House, 45&quot;</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>102.9</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73306789/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>525000</td><td>5102</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.129002</td><td>51.46795</td><td>&quot;SW9 9AN&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 9AN&quot;</td><td>&quot;Houghton Square, London SW9&quot;</td><td>&quot;17, Houghton Square, London&quot;</td><td>&quot;10008788775&quot;</td><td>&quot;17&quot;</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>72.0</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73302918/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>500000</td><td>6944</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>1</td><td>3</td><td>-0.115029</td><td>51.477508</td><td>&quot;SW9 0ET&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 0EN&quot;</td><td>&quot;Cleveland House, Hackford Road, London SW9&quot;</td><td>&quot;Flat 4,, Cleveland House, Hackford Road, London&quot;</td><td>&quot;100021847214&quot;</td><td>&quot;Flat 4,&quot;</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>55.0</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73302851/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>515000</td><td>9364</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>1</td><td>3</td><td>-0.125681</td><td>51.466593</td><td>&quot;SW9 9LF&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 9LF&quot;</td><td>&quot;Hemberton Road, Clapham North, London SW9&quot;</td><td>&quot;chpk0226649, Hemberton Road, Clapham North, London&quot;</td><td>null</td><td>&quot;chpk0226649&quot;</td><td>null</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>49.7</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/71215394/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>475000</td><td>9557</td></tr><tr><td>&quot;Zoopla&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.117086</td><td>51.466529</td><td>&quot;SW9 9FX&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 9TG&quot;</td><td>&quot;Stockwell Road SW9&quot;</td><td>&quot;Flat 59, 151, Stockwell Road&quot;</td><td>&quot;10094957235&quot;</td><td>&quot;Flat 59, 151&quot;</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>52.0</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73250562/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>465000</td><td>8942</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>1</td><td>3</td><td>-0.12876</td><td>51.464473</td><td>&quot;SW9 9NW&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 9PG&quot;</td><td>&quot;Fenwick Place SW9&quot;</td><td>&quot;First Floor Flat, 70, Fenwick Place&quot;</td><td>null</td><td>&quot;First Floor Flat, 70&quot;</td><td>null</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>70.2</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73268982/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>599950</td><td>8546</td></tr><tr><td>&quot;Zoopla&quot;</td><td>1</td><td>1</td><td>2</td><td>-0.108771</td><td>51.470695</td><td>&quot;SW9 7SB&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 7JX&quot;</td><td>&quot;Loughborough Road SW9&quot;</td><td>&quot;Flat C, 58, Loughborough Road&quot;</td><td>null</td><td>&quot;Flat C, 58&quot;</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>44.1</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73268027/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>375000</td><td>8503</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.108351</td><td>51.475345</td><td>&quot;SW9 7RH&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 7BN&quot;</td><td>&quot;Eythorne Road, Oval SW9&quot;</td><td>&quot;Flat 7, 5, Eythorne Road, Oval&quot;</td><td>null</td><td>&quot;Flat 7, 5&quot;</td><td>null</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>null</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73266802/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>575000</td><td>null</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>1</td><td>3</td><td>-0.12142</td><td>51.472181</td><td>&quot;SW9 9AU&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 9AU&quot;</td><td>&quot;Yates Court, Stockwell, London SW9&quot;</td><td>&quot;chpk3677610, Yates Court, Stockwell, London&quot;</td><td>null</td><td>&quot;chpk3677610&quot;</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>72.0</td><td>&quot;https://www.zoopla.co.uk/for-sale/details/73261921/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>475000</td><td>6597</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.10787</td><td>51.476628</td><td>&quot;SW9 6HP&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 6SB&quot;</td><td>&quot;Beam, Lambeth SW9, New home&quot;</td><td>&quot;Beam, Lambeth SW9, New home&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>74.4</td><td>&quot;https://www.zoopla.co.uk/new-homes/details/73247019/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>580000</td><td>7796</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.10787</td><td>51.476628</td><td>&quot;SW9 6HP&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 6SB&quot;</td><td>&quot;Beam, Lambeth SW9, New home&quot;</td><td>&quot;Beam, Lambeth SW9, New home&quot;</td><td>null</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>74.4</td><td>&quot;https://www.zoopla.co.uk/new-homes/details/73246935/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>595000</td><td>7997</td></tr><tr><td>&quot;Zoopla&quot;</td><td>2</td><td>2</td><td>4</td><td>-0.122738</td><td>51.467418</td><td>&quot;SW9 9FX&quot;</td><td>&quot;detail_address&quot;</td><td>null</td><td>&quot;SW9 9DG&quot;</td><td>&quot;Stockwell Road, Brixton SW9, New home&quot;</td><td>&quot;Stockwell Road, Brixton SW9, New home&quot;</td><td>&quot;10094957206&quot;</td><td>null</td><td>&quot;Leasehold&quot;</td><td>&quot;Flats/Maisonettes&quot;</td><td>&quot;Flat&quot;</td><td>&quot;&quot;</td><td>72.0</td><td>&quot;https://www.zoopla.co.uk/new-homes/details/73239981/&quot;</td><td>[]</td><td>null</td><td>&quot;For sale&quot;</td><td>575000</td><td>7986</td></tr></tbody></table></div>"
      ],
      "text/plain": [
       "shape: (45, 25)\n",
       "┌───────────┬──────────┬───────────┬───────────┬───┬───────────┬───────────┬───────────┬───────────┐\n",
       "│ provider  ┆ Bedrooms ┆ Bathrooms ┆ Number of ┆ … ┆ Listing   ┆ Listing   ┆ Asking    ┆ Asking    │\n",
       "│ ---       ┆ ---      ┆ ---       ┆ bedrooms  ┆   ┆ date      ┆ status    ┆ price     ┆ price per │\n",
       "│ str       ┆ i32      ┆ i32       ┆ & living  ┆   ┆ ---       ┆ ---       ┆ ---       ┆ sqm       │\n",
       "│           ┆          ┆           ┆ rooms     ┆   ┆ datetime[ ┆ str       ┆ i64       ┆ ---       │\n",
       "│           ┆          ┆           ┆ ---       ┆   ┆ μs]       ┆           ┆           ┆ i32       │\n",
       "│           ┆          ┆           ┆ i32       ┆   ┆           ┆           ┆           ┆           │\n",
       "╞═══════════╪══════════╪═══════════╪═══════════╪═══╪═══════════╪═══════════╪═══════════╪═══════════╡\n",
       "│ OnTheMark ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 525000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 275000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 4        ┆ 1         ┆ 5         ┆ … ┆ null      ┆ For sale  ┆ 600000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 350000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 475000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 0        ┆ 1         ┆ 1         ┆ … ┆ null      ┆ For sale  ┆ 225000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 575000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 435000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 450000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 500000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 650000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 450000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 340000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 2        ┆ 1         ┆ 3         ┆ … ┆ null      ┆ For sale  ┆ 500000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ OnTheMark ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 550000    ┆ null      │\n",
       "│ et        ┆          ┆           ┆           ┆   ┆           ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ 2026-05-2 ┆ For sale  ┆ 310000    ┆ null      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 9         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 14:30:37  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 5        ┆ 4         ┆ 9         ┆ … ┆ 2026-04-1 ┆ For sale  ┆ 2595000   ┆ 8355      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 7         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 18:34:21  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 6        ┆ 3         ┆ 9         ┆ … ┆ 2026-04-1 ┆ For sale  ┆ 2295000   ┆ null      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 0         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 11:17:35  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 4        ┆ 2         ┆ 6         ┆ … ┆ 2026-01-0 ┆ For sale  ┆ 2250000   ┆ 10412     │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 2         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 17:30:39  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ 2026-04-0 ┆ For sale  ┆ 2100000   ┆ 9841      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 8         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 17:23:59  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 4        ┆ 3         ┆ 7         ┆ … ┆ 2026-05-1 ┆ For sale  ┆ 2100000   ┆ 10633     │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 3         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 16:21:42  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 5        ┆ 3         ┆ 8         ┆ … ┆ 2026-04-2 ┆ For sale  ┆ 1900000   ┆ 7702      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 2         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 16:04:47  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 3        ┆ 3         ┆ 6         ┆ … ┆ 2026-05-1 ┆ For sale  ┆ 1695000   ┆ 10810     │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 2         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 16:14:48  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 5        ┆ 3         ┆ 8         ┆ … ┆ 2025-10-0 ┆ For sale  ┆ 1695000   ┆ 8773      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 7         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 09:57:34  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ 2026-03-2 ┆ For sale  ┆ 1695000   ┆ null      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 5         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 09:55:49  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 4        ┆ 3         ┆ 7         ┆ … ┆ 2026-04-0 ┆ For sale  ┆ 1650000   ┆ 9958      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 2         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 16:51:56  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 5        ┆ 2         ┆ 7         ┆ … ┆ 2026-05-1 ┆ For sale  ┆ 1595000   ┆ 7995      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 2         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 14:23:19  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 5        ┆ 3         ┆ 8         ┆ … ┆ 2026-02-1 ┆ For sale  ┆ 1550000   ┆ null      │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 3         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 14:31:16  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 8        ┆ 1         ┆ 9         ┆ … ┆ 2026-05-0 ┆ For sale  ┆ 1550000   ┆ 35227     │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 6         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 17:31:38  ┆           ┆           ┆           │\n",
       "│ Rightmove ┆ 4        ┆ 2         ┆ 6         ┆ … ┆ 2026-04-1 ┆ For sale  ┆ 1500000   ┆ 13100     │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 0         ┆           ┆           ┆           │\n",
       "│           ┆          ┆           ┆           ┆   ┆ 09:39:04  ┆           ┆           ┆           │\n",
       "│ Zoopla    ┆ 4        ┆ 2         ┆ 6         ┆ … ┆ null      ┆ For sale  ┆ 995000    ┆ 8728      │\n",
       "│ Zoopla    ┆ 2        ┆ 1         ┆ 3         ┆ … ┆ null      ┆ For sale  ┆ 350000    ┆ 4493      │\n",
       "│ Zoopla    ┆ 5        ┆ 3         ┆ 8         ┆ … ┆ null      ┆ For sale  ┆ 1695000   ┆ 8697      │\n",
       "│ Zoopla    ┆ 3        ┆ 2         ┆ 5         ┆ … ┆ null      ┆ For sale  ┆ 525000    ┆ 5102      │\n",
       "│ Zoopla    ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 500000    ┆ 6944      │\n",
       "│ Zoopla    ┆ 2        ┆ 1         ┆ 3         ┆ … ┆ null      ┆ For sale  ┆ 515000    ┆ 9364      │\n",
       "│ Zoopla    ┆ 2        ┆ 1         ┆ 3         ┆ … ┆ null      ┆ For sale  ┆ 475000    ┆ 9557      │\n",
       "│ Zoopla    ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 465000    ┆ 8942      │\n",
       "│ Zoopla    ┆ 2        ┆ 1         ┆ 3         ┆ … ┆ null      ┆ For sale  ┆ 599950    ┆ 8546      │\n",
       "│ Zoopla    ┆ 1        ┆ 1         ┆ 2         ┆ … ┆ null      ┆ For sale  ┆ 375000    ┆ 8503      │\n",
       "│ Zoopla    ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 575000    ┆ null      │\n",
       "│ Zoopla    ┆ 2        ┆ 1         ┆ 3         ┆ … ┆ null      ┆ For sale  ┆ 475000    ┆ 6597      │\n",
       "│ Zoopla    ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 580000    ┆ 7796      │\n",
       "│ Zoopla    ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 595000    ┆ 7997      │\n",
       "│ Zoopla    ┆ 2        ┆ 2         ┆ 4         ┆ … ┆ null      ┆ For sale  ┆ 575000    ┆ 7986      │\n",
       "└───────────┴──────────┴───────────┴───────────┴───┴───────────┴───────────┴───────────┴───────────┘"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "df = (\n",
    "    pl.read_parquet(DATA_PATH)\n",
    "    .with_columns(\n",
    "        pl.when(pl.col(\"Listing URL\").str.contains(\"rightmove.co.uk\", literal=True))\n",
    "        .then(pl.lit(\"Rightmove\"))\n",
    "        .when(pl.col(\"Listing URL\").str.contains(\"onthemarket.com\", literal=True))\n",
    "        .then(pl.lit(\"OnTheMarket\"))\n",
    "        .when(pl.col(\"Listing URL\").str.contains(\"zoopla.co.uk\", literal=True))\n",
    "        .then(pl.lit(\"Zoopla\"))\n",
    "        .otherwise(pl.lit(\"Unknown\"))\n",
    "        .alias(\"provider\")\n",
    "    )\n",
    "    .filter(pl.col(\"provider\").is_in([\"Rightmove\", \"OnTheMarket\", \"Zoopla\"]))\n",
    ")\n",
    "\n",
    "print(f\"Rows: {df.height:,}\")\n",
    "print(f\"Columns: {len(df.columns):,}\")\n",
    "display(df.group_by(\"provider\").len().sort(\"provider\"))\n",
    "display(df.group_by(\"provider\", maintain_order=False).head(15).sort(\"provider\"))"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e775e26e",
   "metadata": {},
   "source": [
    "## NA Counts By Provider"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "059462d2",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-05-17T10:23:47.956431Z",
     "iopub.status.busy": "2026-05-17T10:23:47.956358Z",
     "iopub.status.idle": "2026-05-17T10:23:47.979826Z",
     "shell.execute_reply": "2026-05-17T10:23:47.979565Z"
    }
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div><style>\n",
       ".dataframe > thead > tr,\n",
       ".dataframe > tbody > tr {\n",
       "  text-align: right;\n",
       "  white-space: pre-wrap;\n",
       "}\n",
       "</style>\n",
       "<small>shape: (3, 25)</small><table border=\"1\" class=\"dataframe\"><thead><tr><th>provider</th><th>Bedrooms</th><th>Bathrooms</th><th>Number of bedrooms &amp; living rooms</th><th>lon</th><th>lat</th><th>Postcode</th><th>Postcode source</th><th>Extracted postcode</th><th>Inferred postcode</th><th>Listing raw address</th><th>Address per Property Register</th><th>UPRN</th><th>Property number or name</th><th>Leasehold/Freehold</th><th>Property type</th><th>Property sub-type</th><th>Price qualifier</th><th>Total floor area (sqm)</th><th>Listing URL</th><th>Listing features</th><th>Listing date</th><th>Listing status</th><th>Asking price</th><th>Asking price per sqm</th></tr><tr><td>str</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td><td>u32</td></tr></thead><tbody><tr><td>&quot;OnTheMarket&quot;</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>84</td><td>0</td><td>0</td><td>0</td><td>85</td><td>85</td><td>0</td><td>0</td><td>0</td><td>0</td><td>82</td><td>0</td><td>0</td><td>85</td><td>0</td><td>0</td><td>82</td></tr><tr><td>&quot;Rightmove&quot;</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>98</td><td>0</td><td>0</td><td>0</td><td>99</td><td>99</td><td>17</td><td>0</td><td>0</td><td>0</td><td>34</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>34</td></tr><tr><td>&quot;Zoopla&quot;</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>58</td><td>0</td><td>0</td><td>0</td><td>25</td><td>11</td><td>14</td><td>0</td><td>0</td><td>0</td><td>5</td><td>0</td><td>0</td><td>58</td><td>0</td><td>0</td><td>5</td></tr></tbody></table></div>"
      ],
      "text/plain": [
       "shape: (3, 25)\n",
       "┌────────────┬──────────┬───────────┬────────────┬───┬────────────┬───────────┬────────┬───────────┐\n",
       "│ provider   ┆ Bedrooms ┆ Bathrooms ┆ Number of  ┆ … ┆ Listing    ┆ Listing   ┆ Asking ┆ Asking    │\n",
       "│ ---        ┆ ---      ┆ ---       ┆ bedrooms & ┆   ┆ date       ┆ status    ┆ price  ┆ price per │\n",
       "│ str        ┆ u32      ┆ u32       ┆ living     ┆   ┆ ---        ┆ ---       ┆ ---    ┆ sqm       │\n",
       "│            ┆          ┆           ┆ rooms      ┆   ┆ u32        ┆ u32       ┆ u32    ┆ ---       │\n",
       "│            ┆          ┆           ┆ ---        ┆   ┆            ┆           ┆        ┆ u32       │\n",
       "│            ┆          ┆           ┆ u32        ┆   ┆            ┆           ┆        ┆           │\n",
       "╞════════════╪══════════╪═══════════╪════════════╪═══╪════════════╪═══════════╪════════╪═══════════╡\n",
       "│ OnTheMarke ┆ 0        ┆ 0         ┆ 0          ┆ … ┆ 85         ┆ 0         ┆ 0      ┆ 82        │\n",
       "│ t          ┆          ┆           ┆            ┆   ┆            ┆           ┆        ┆           │\n",
       "│ Rightmove  ┆ 0        ┆ 0         ┆ 0          ┆ … ┆ 0          ┆ 0         ┆ 0      ┆ 34        │\n",
       "│ Zoopla     ┆ 0        ┆ 0         ┆ 0          ┆ … ┆ 58         ┆ 0         ┆ 0      ┆ 5         │\n",
       "└────────────┴──────────┴───────────┴────────────┴───┴────────────┴───────────┴────────┴───────────┘"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "text/html": [
       "<div><style>\n",
       ".dataframe > thead > tr,\n",
       ".dataframe > tbody > tr {\n",
       "  text-align: right;\n",
       "  white-space: pre-wrap;\n",
       "}\n",
       "</style>\n",
       "<small>shape: (19, 5)</small><table border=\"1\" class=\"dataframe\"><thead><tr><th>provider</th><th>column</th><th>na_count</th><th>provider_rows</th><th>na_pct</th></tr><tr><td>str</td><td>str</td><td>u32</td><td>u32</td><td>f64</td></tr></thead><tbody><tr><td>&quot;OnTheMarket&quot;</td><td>&quot;Listing date&quot;</td><td>85</td><td>85</td><td>100.0</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>&quot;Property number or name&quot;</td><td>85</td><td>85</td><td>100.0</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>&quot;UPRN&quot;</td><td>85</td><td>85</td><td>100.0</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>&quot;Extracted postcode&quot;</td><td>84</td><td>85</td><td>98.82</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>&quot;Asking price per sqm&quot;</td><td>82</td><td>85</td><td>96.47</td></tr><tr><td>&quot;OnTheMarket&quot;</td><td>&quot;Total floor area (sqm)&quot;</td><td>82</td><td>85</td><td>96.47</td></tr><tr><td>&quot;Rightmove&quot;</td><td>&quot;Property number or name&quot;</td><td>99</td><td>99</td><td>100.0</td></tr><tr><td>&quot;Rightmove&quot;</td><td>&quot;UPRN&quot;</td><td>99</td><td>99</td><td>100.0</td></tr><tr><td>&quot;Rightmove&quot;</td><td>&quot;Extracted postcode&quot;</td><td>98</td><td>99</td><td>98.99</td></tr><tr><td>&quot;Rightmove&quot;</td><td>&quot;Asking price per sqm&quot;</td><td>34</td><td>99</td><td>34.34</td></tr><tr><td>&quot;Rightmove&quot;</td><td>&quot;Total floor area (sqm)&quot;</td><td>34</td><td>99</td><td>34.34</td></tr><tr><td>&quot;Rightmove&quot;</td><td>&quot;Leasehold/Freehold&quot;</td><td>17</td><td>99</td><td>17.17</td></tr><tr><td>&quot;Zoopla&quot;</td><td>&quot;Extracted postcode&quot;</td><td>58</td><td>58</td><td>100.0</td></tr><tr><td>&quot;Zoopla&quot;</td><td>&quot;Listing date&quot;</td><td>58</td><td>58</td><td>100.0</td></tr><tr><td>&quot;Zoopla&quot;</td><td>&quot;UPRN&quot;</td><td>25</td><td>58</td><td>43.1</td></tr><tr><td>&quot;Zoopla&quot;</td><td>&quot;Leasehold/Freehold&quot;</td><td>14</td><td>58</td><td>24.14</td></tr><tr><td>&quot;Zoopla&quot;</td><td>&quot;Property number or name&quot;</td><td>11</td><td>58</td><td>18.97</td></tr><tr><td>&quot;Zoopla&quot;</td><td>&quot;Asking price per sqm&quot;</td><td>5</td><td>58</td><td>8.62</td></tr><tr><td>&quot;Zoopla&quot;</td><td>&quot;Total floor area (sqm)&quot;</td><td>5</td><td>58</td><td>8.62</td></tr></tbody></table></div>"
      ],
      "text/plain": [
       "shape: (19, 5)\n",
       "┌─────────────┬─────────────────────────┬──────────┬───────────────┬────────┐\n",
       "│ provider    ┆ column                  ┆ na_count ┆ provider_rows ┆ na_pct │\n",
       "│ ---         ┆ ---                     ┆ ---      ┆ ---           ┆ ---    │\n",
       "│ str         ┆ str                     ┆ u32      ┆ u32           ┆ f64    │\n",
       "╞═════════════╪═════════════════════════╪══════════╪═══════════════╪════════╡\n",
       "│ OnTheMarket ┆ Listing date            ┆ 85       ┆ 85            ┆ 100.0  │\n",
       "│ OnTheMarket ┆ Property number or name ┆ 85       ┆ 85            ┆ 100.0  │\n",
       "│ OnTheMarket ┆ UPRN                    ┆ 85       ┆ 85            ┆ 100.0  │\n",
       "│ OnTheMarket ┆ Extracted postcode      ┆ 84       ┆ 85            ┆ 98.82  │\n",
       "│ OnTheMarket ┆ Asking price per sqm    ┆ 82       ┆ 85            ┆ 96.47  │\n",
       "│ OnTheMarket ┆ Total floor area (sqm)  ┆ 82       ┆ 85            ┆ 96.47  │\n",
       "│ Rightmove   ┆ Property number or name ┆ 99       ┆ 99            ┆ 100.0  │\n",
       "│ Rightmove   ┆ UPRN                    ┆ 99       ┆ 99            ┆ 100.0  │\n",
       "│ Rightmove   ┆ Extracted postcode      ┆ 98       ┆ 99            ┆ 98.99  │\n",
       "│ Rightmove   ┆ Asking price per sqm    ┆ 34       ┆ 99            ┆ 34.34  │\n",
       "│ Rightmove   ┆ Total floor area (sqm)  ┆ 34       ┆ 99            ┆ 34.34  │\n",
       "│ Rightmove   ┆ Leasehold/Freehold      ┆ 17       ┆ 99            ┆ 17.17  │\n",
       "│ Zoopla      ┆ Extracted postcode      ┆ 58       ┆ 58            ┆ 100.0  │\n",
       "│ Zoopla      ┆ Listing date            ┆ 58       ┆ 58            ┆ 100.0  │\n",
       "│ Zoopla      ┆ UPRN                    ┆ 25       ┆ 58            ┆ 43.1   │\n",
       "│ Zoopla      ┆ Leasehold/Freehold      ┆ 14       ┆ 58            ┆ 24.14  │\n",
       "│ Zoopla      ┆ Property number or name ┆ 11       ┆ 58            ┆ 18.97  │\n",
       "│ Zoopla      ┆ Asking price per sqm    ┆ 5        ┆ 58            ┆ 8.62   │\n",
       "│ Zoopla      ┆ Total floor area (sqm)  ┆ 5        ┆ 58            ┆ 8.62   │\n",
       "└─────────────┴─────────────────────────┴──────────┴───────────────┴────────┘"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "def missing_expr(column: str, dtype: pl.DataType) -> pl.Expr:\n",
    "    missing = pl.col(column).is_null()\n",
    "    if dtype in (pl.Float32, pl.Float64):\n",
    "        missing = missing | pl.col(column).is_nan().fill_null(False)\n",
    "    return missing.sum().alias(column)\n",
    "\n",
    "\n",
    "value_columns = [column for column in df.columns if column != \"provider\"]\n",
    "missing_by_provider = (\n",
    "    df.group_by(\"provider\")\n",
    "    .agg([missing_expr(column, df.schema[column]) for column in value_columns])\n",
    "    .sort(\"provider\")\n",
    ")\n",
    "\n",
    "missing_long = (\n",
    "    missing_by_provider.unpivot(\n",
    "        index=\"provider\",\n",
    "        variable_name=\"column\",\n",
    "        value_name=\"na_count\",\n",
    "    )\n",
    "    .join(df.group_by(\"provider\").len().rename({\"len\": \"provider_rows\"}), on=\"provider\")\n",
    "    .filter(pl.col('na_count') > 0)\n",
    "    .with_columns((pl.col(\"na_count\") / pl.col(\"provider_rows\") * 100).round(2).alias(\"na_pct\"))\n",
    "    .sort([\"provider\", \"na_count\", \"column\"], descending=[False, True, False])\n",
    ")\n",
    "\n",
    "display(missing_by_provider)\n",
    "display(missing_long)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "24de8b4c",
   "metadata": {},
   "source": [
    "## Map"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "cadef70a",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-05-17T10:23:48.014374Z",
     "iopub.status.busy": "2026-05-17T10:23:48.014290Z",
     "iopub.status.idle": "2026-05-17T10:23:49.319476Z",
     "shell.execute_reply": "2026-05-17T10:23:49.319211Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Mapped rows: 242\n"
     ]
    },
    {
     "data": {
      "application/vnd.plotly.v1+json": {
       "config": {
        "plotlyServerURL": "https://plot.ly"
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           "https://www.rightmove.co.uk/properties/89076063#/?channel=RES_BUY",
           51.471079,
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          [
           "Stockwell Park Crescent II, London",
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           5,
           "Semi-Detached",
           "https://www.rightmove.co.uk/properties/174610352#/?channel=RES_BUY",
           51.47115,
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           "Groveway, Stockwell",
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           "https://www.rightmove.co.uk/properties/174282005#/?channel=RES_BUY",
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           "Stockwell Park Road, London",
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           51.474381,
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           4,
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           "https://www.rightmove.co.uk/properties/174050450#/?channel=RES_BUY",
           51.465546,
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           "Burnley Road, London",
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           "https://www.rightmove.co.uk/properties/88367181#/?channel=RES_BUY",
           51.470986,
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           51.475262,
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           "Brixton Road, Brixton High Street",
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           "https://www.rightmove.co.uk/properties/88139847#/?channel=RES_BUY",
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           51.472272,
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           "https://www.rightmove.co.uk/properties/160476977#/?channel=RES_BUY",
           51.468018,
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           "https://www.rightmove.co.uk/properties/173691437#/?channel=RES_BUY",
           51.469995,
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           4,
           "Terraced",
           "https://www.rightmove.co.uk/properties/88674900#/?channel=RES_BUY",
           51.464666,
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           "Tasman Road, Clapham",
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           "https://www.rightmove.co.uk/properties/166381670#/?channel=RES_BUY",
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           3,
           "Terraced",
           "https://www.rightmove.co.uk/properties/174585656#/?channel=RES_BUY",
           51.4723,
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           "Kimberley Road, Clapham North",
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           "Detached",
           "https://www.rightmove.co.uk/properties/170576258#/?channel=RES_BUY",
           51.467839,
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           4,
           "Terraced",
           "https://www.rightmove.co.uk/properties/171967202#/?channel=RES_BUY",
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           "Detached",
           "https://www.rightmove.co.uk/properties/88123392#/?channel=RES_BUY",
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           4,
           "Detached",
           "https://www.rightmove.co.uk/properties/174512360#/?channel=RES_BUY",
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           "https://www.rightmove.co.uk/properties/89089584#/?channel=RES_BUY",
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           3,
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           3,
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           "https://www.rightmove.co.uk/properties/174043499#/?channel=RES_BUY",
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           3,
           "Detached",
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           -0.11885
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           5,
           "Terraced",
           "https://www.rightmove.co.uk/properties/173248592#/?channel=RES_BUY",
           51.46484,
           -0.11861
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           "Cowley Road, London",
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           2,
           "Flats/Maisonettes",
           "https://www.rightmove.co.uk/properties/174943268#/?channel=RES_BUY",
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           "Terraced",
           "https://www.rightmove.co.uk/properties/171244910#/?channel=RES_BUY",
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           3,
           "Detached",
           "https://www.rightmove.co.uk/properties/88786803#/?channel=RES_BUY",
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           -0.123544
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           2,
           "Terraced",
           "https://www.rightmove.co.uk/properties/173407493#/?channel=RES_BUY",
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           "https://www.rightmove.co.uk/properties/174241487#/?channel=RES_BUY",
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           3,
           "Terraced",
           "https://www.rightmove.co.uk/properties/172063247#/?channel=RES_BUY",
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           "Flats/Maisonettes",
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           "Detached",
           "https://www.rightmove.co.uk/properties/174459077#/?channel=RES_BUY",
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           "Terraced",
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           4,
           "Terraced",
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           4,
           "Detached",
           "https://www.rightmove.co.uk/properties/87977643#/?channel=RES_BUY",
           51.47451,
           -0.10695
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           4,
           "Terraced",
           "https://www.rightmove.co.uk/properties/145850135#/?channel=RES_BUY",
           51.476302,
           -0.104166
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           "Hargwyne Street, Brixton",
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           3,
           "Detached",
           "https://www.rightmove.co.uk/properties/88033488#/?channel=RES_BUY",
           51.465427,
           -0.121403
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           2,
           "Flats/Maisonettes",
           "https://www.rightmove.co.uk/properties/173616209#/?channel=RES_BUY",
           51.463844,
           -0.108902
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           3,
           "Terraced",
           "https://www.rightmove.co.uk/properties/167464373#/?channel=RES_BUY",
           51.476811,
           -0.107076
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           3,
           "Flats/Maisonettes",
           "https://www.rightmove.co.uk/properties/167067521#/?channel=RES_BUY",
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           -0.126446
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           "Kimberley Road, London",
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           1,
           3,
           "Flats/Maisonettes",
           "https://www.rightmove.co.uk/properties/166294310#/?channel=RES_BUY",
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           3,
           "Terraced",
           "https://www.rightmove.co.uk/properties/174671783#/?channel=RES_BUY",
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           "Flats/Maisonettes",
           "https://www.rightmove.co.uk/properties/169024502#/?channel=RES_BUY",
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           3,
           "Flats/Maisonettes",
           "https://www.rightmove.co.uk/properties/172439786#/?channel=RES_BUY",
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           2,
           "Flats/Maisonettes",
           "https://www.rightmove.co.uk/properties/89043525#/?channel=RES_BUY",
           51.470458,
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          [
           "Broomgrove Road, Stockwell",
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           4,
           "Detached",
           "https://www.rightmove.co.uk/properties/87785412#/?channel=RES_BUY",
           51.468367,
           -0.117416
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          [
           "Landor Road, Clapham",
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           2,
           "Flats/Maisonettes",
           "https://www.rightmove.co.uk/properties/88178850#/?channel=RES_BUY",
           51.465864,
           -0.126485
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          [
           "Southey Road, London",
           750000,
           1,
           3,
           "Flats/Maisonettes",
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        },
        "title": {
         "text": "Buy listings by source"
        }
       }
      }
     },
     "metadata": {},
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   ],
   "source": [
    "map_df = (\n",
    "    df.filter(\n",
    "        pl.col(\"lat\").is_not_null()\n",
    "        & pl.col(\"lon\").is_not_null()\n",
    "        & pl.col(\"lat\").is_between(49, 56)\n",
    "        & pl.col(\"lon\").is_between(-1, 1)\n",
    "    )\n",
    "    .select(\n",
    "        \"provider\",\n",
    "        \"lat\",\n",
    "        \"lon\",\n",
    "        \"Postcode\",\n",
    "        \"Address per Property Register\",\n",
    "        \"Asking price\",\n",
    "        \"Bathrooms\",\n",
    "        \"Bedrooms\",\n",
    "        \"Property type\",\n",
    "        \"Listing URL\",\n",
    "    )\n",
    "    .to_pandas()\n",
    ")\n",
    "\n",
    "print(f\"Mapped rows: {len(map_df):,}\")\n",
    "\n",
    "fig = px.scatter_map(\n",
    "    map_df,\n",
    "    lat=\"lat\",\n",
    "    lon=\"lon\",\n",
    "    color=\"provider\",\n",
    "    color_discrete_map={\n",
    "        \"Rightmove\": \"#2563eb\",\n",
    "        \"OnTheMarket\": \"#16a34a\",\n",
    "        \"Zoopla\": \"#dc2626\",\n",
    "        \"Unknown\": \"#6b7280\",\n",
    "    },\n",
    "    hover_name=\"Postcode\",\n",
    "    hover_data={\n",
    "        \"Address per Property Register\": True,\n",
    "        \"Asking price\": \":,.0f\",\n",
    "        \"Bathrooms\": True,\n",
    "        \"Bedrooms\": True,\n",
    "        \"Property type\": True,\n",
    "        \"Listing URL\": True,\n",
    "        \"lat\": False,\n",
    "        \"lon\": False,\n",
    "    },\n",
    "    zoom=9,\n",
    "    height=800,\n",
    "    title=\"Buy listings by source\",\n",
    ")\n",
    "fig.update_traces(marker={\"size\": 5, \"opacity\": 0.65})\n",
    "fig.update_layout(\n",
    "    map_style=\"open-street-map\",\n",
    "    legend_title_text=\"Provider\",\n",
    "    margin={\"l\": 0, \"r\": 0, \"t\": 45, \"b\": 0},\n",
    ")\n",
    "fig.show()"
   ]
  }
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