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perfect-postcode/analysis/out/findings_review.md
Andras Schmelczer 463bd4c647 ..
2026-07-03 18:47:28 +01:00

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Findings: review before publishing

16 findings generated from analysis/out/cheaper_twins.parquet. Check the place names (⚠ = unnamed sector, needs a label in analysis/place_names.json) and spot-check a couple of numbers. Then these feed the page batch + video factory.

⚠ Title Hook number Page path Deep link
⚠ W1J 7 vs SW7 3: the same flat, about 41% cheaper per m² 41% /cheaper-twin/w1j-7-vs-sw7-3 map
⚠ SW1X 8 vs SW7 2: the same flat, about 42% cheaper per m² 42% /cheaper-twin/sw1x-8-vs-sw7-2 map
⚠ WC2A 2 vs EC2A 2: the same flat, about 43% cheaper per m² 43% /cheaper-twin/wc2a-2-vs-ec2a-2 map
⚠ W1K 2 vs SW1X 0: the same flat, about 32% cheaper per m² 32% /cheaper-twin/w1k-2-vs-sw1x-0 map
Marylebone vs Camden: the same flat, about 43% cheaper per m² 43% /cheaper-twin/w1u-4-vs-nw1-4 map
⚠ W1J 8 vs SW1A 2: the same flat, about 37% cheaper per m² 37% /cheaper-twin/w1j-8-vs-sw1a-2 map
Beckenham vs Croydon: the same terraced house, about 31% cheaper per m² 31% /cheaper-twin/br3-3-vs-cr0-7 map
Woodford Green vs Barkingside: the same terraced house, about 26% cheaper per m² 26% /cheaper-twin/ig8-7-vs-ig6-2 map
Twickenham vs Hounslow: the same semi-detached house, about 19% cheaper per m² 19% /cheaper-twin/tw2-7-vs-tw3-2 map
Hampton vs East Molesey: the same terraced house, about 19% cheaper per m² 19% /cheaper-twin/tw12-3-vs-kt8-1 map
Upminster vs Hornchurch: the same semi-detached house, about 20% cheaper per m² 20% /cheaper-twin/rm14-2-vs-rm12-5 map
Stanmore vs Kenton: the same semi-detached house, about 17% cheaper per m² 17% /cheaper-twin/ha7-2-vs-ha3-0 map
Newton Heath vs Harpurhey: the same terraced house, about 42% cheaper per m² 42% /cheaper-twin/m40-5-vs-m9-4 map
Childwall vs Broadgreen: the same semi-detached house, about 30% cheaper per m² 30% /cheaper-twin/l16-7-vs-l14-6 map
⚠ SE28 8 vs DA18 4: the same terraced house, about 30% cheaper per m² 30% /cheaper-twin/se28-8-vs-da18-4 map
⚠ How many square metres £100,000 buys across England 152 m² vs 3 m² /square-metres-per-100k map

Per-finding detail

W1J 7 vs SW7 3: the same flat, about 41% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/w1j-7-vs-sw7-3
  • Hook: £1,223,460 less for an equivalent flat: same station, similar schools, ~2.6km apart
  • Mayfair (W1J 7) £32,986/m² (n=724) → SW7 3 £19,392/m² (n=2,581) · gap 41.2% · Flats/Maisonettes, ~1914
  • OG card / deep link: lat=51.49856&lon=-0.16253&zoom=12.5&filter=Est.%20price%20per%20sqm:0:20400&filter=Good%2B%20secondary%20school%20catchments:1:11

SW1X 8 vs SW7 2: the same flat, about 42% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/sw1x-8-vs-sw7-2
  • Hook: £1,001,160 less for an equivalent flat: same station, similar schools, ~1.31km apart
  • SW1X 8 £26,735/m² (n=1,410) → SW7 2 £15,611/m² (n=1,126) · gap 41.6% · Flats/Maisonettes, ~1890
  • OG card / deep link: lat=51.49758&lon=-0.16439&zoom=12.5&filter=Est.%20price%20per%20sqm:0:16400&filter=Good%2B%20secondary%20school%20catchments:1:11

WC2A 2 vs EC2A 2: the same flat, about 43% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/wc2a-2-vs-ec2a-2
  • Hook: £981,540 less for an equivalent flat: same station, similar schools, ~2.3km apart
  • WC2A 2 £25,482/m² (n=254) → EC2A 2 £14,576/m² (n=772) · gap 42.8% · Flats/Maisonettes, ~2019
  • OG card / deep link: lat=51.51807&lon=-0.09837&zoom=12.5&filter=Est.%20price%20per%20sqm:0:15300&filter=Good%2B%20secondary%20school%20catchments:1:11

W1K 2 vs SW1X 0: the same flat, about 32% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/w1k-2-vs-sw1x-0
  • Hook: £978,570 less for an equivalent flat: same station, similar schools, ~1.62km apart
  • Mayfair (W1K 2) £34,362/m² (n=591) → SW1X 0 £23,489/m² (n=1,606) · gap 31.6% · Flats/Maisonettes, ~1914
  • OG card / deep link: lat=51.50311&lon=-0.15673&zoom=12.5&filter=Est.%20price%20per%20sqm:0:24700&filter=Good%2B%20secondary%20school%20catchments:1:11

Marylebone vs Camden: the same flat, about 43% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/w1u-4-vs-nw1-4
  • Hook: £942,480 less for an equivalent flat: same station, similar schools, ~0.97km apart
  • Marylebone (W1U 4) £24,238/m² (n=984) → Camden (NW1 4) £13,766/m² (n=1,340) · gap 43.2% · Flats/Maisonettes, ~1940
  • OG card / deep link: lat=51.5238&lon=-0.15091&zoom=12.5&filter=Est.%20price%20per%20sqm:0:14500&filter=Good%2B%20secondary%20school%20catchments:1:11

W1J 8 vs SW1A 2: the same flat, about 37% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/w1j-8-vs-sw1a-2
  • Hook: £916,380 less for an equivalent flat: same station, similar schools, ~1.31km apart
  • Mayfair (W1J 8) £27,270/m² (n=295) → SW1A 2 £17,088/m² (n=261) · gap 37.3% · Flats/Maisonettes, ~2000
  • OG card / deep link: lat=51.50663&lon=-0.13494&zoom=12.5&filter=Est.%20price%20per%20sqm:0:17900&filter=Good%2B%20secondary%20school%20catchments:1:11

Beckenham vs Croydon: the same terraced house, about 31% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/br3-3-vs-cr0-7
  • Hook: £201,870 less for an equivalent terraced house: same station, similar schools, ~2.02km apart
  • Beckenham (BR3 3) £7,153/m² (n=4,514) → Croydon (CR0 7) £4,910/m² (n=5,143) · gap 31.4% · Terraced, ~1940
  • OG card / deep link: lat=51.38969&lon=-0.04244&zoom=12.5&filter=Est.%20price%20per%20sqm:0:5200&filter=Good%2B%20secondary%20school%20catchments:1:11

Woodford Green vs Barkingside: the same terraced house, about 26% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/ig8-7-vs-ig6-2
  • Hook: £164,070 less for an equivalent terraced house: same station, similar schools, ~2.98km apart
  • Woodford Green (IG8 7) £7,148/m² (n=2,965) → Barkingside (IG6 2) £5,325/m² (n=4,423) · gap 25.5% · Terraced, ~1958
  • OG card / deep link: lat=51.60238&lon=0.06063&zoom=12.5&filter=Est.%20price%20per%20sqm:0:5600&filter=Good%2B%20secondary%20school%20catchments:1:11

Twickenham vs Hounslow: the same semi-detached house, about 19% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/tw2-7-vs-tw3-2
  • Hook: £121,590 less for an equivalent semi-detached house: same station, similar schools, ~1.0km apart
  • Twickenham (TW2 7) £6,971/m² (n=3,377) → Hounslow (TW3 2) £5,620/m² (n=2,964) · gap 19.4% · Semi-Detached, ~1940
  • OG card / deep link: lat=51.45678&lon=-0.35702&zoom=12.5&filter=Est.%20price%20per%20sqm:0:5900&filter=Good%2B%20secondary%20school%20catchments:1:11

Hampton vs East Molesey: the same terraced house, about 19% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/tw12-3-vs-kt8-1
  • Hook: £120,060 less for an equivalent terraced house: same station, similar schools, ~2.23km apart
  • Hampton (TW12 3) £7,042/m² (n=2,527) → East Molesey (KT8 1) £5,708/m² (n=1,567) · gap 18.9% · Terraced, ~1979
  • OG card / deep link: lat=51.41616&lon=-0.37365&zoom=12.5&filter=Est.%20price%20per%20sqm:0:6000&filter=Good%2B%20secondary%20school%20catchments:1:11

Upminster vs Hornchurch: the same semi-detached house, about 20% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/rm14-2-vs-rm12-5
  • Hook: £115,290 less for an equivalent semi-detached house: same station, similar schools, ~2.99km apart
  • Upminster (RM14 2) £6,360/m² (n=3,026) → Hornchurch (RM12 5) £5,079/m² (n=3,133) · gap 20.1% · Semi-Detached, ~1940
  • OG card / deep link: lat=51.54892&lon=0.22193&zoom=12.5&filter=Est.%20price%20per%20sqm:0:5300&filter=Good%2B%20secondary%20school%20catchments:1:11

Stanmore vs Kenton: the same semi-detached house, about 17% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/ha7-2-vs-ha3-0
  • Hook: £106,920 less for an equivalent semi-detached house: same station, similar schools, ~2.57km apart
  • Stanmore (HA7 2) £6,834/m² (n=2,775) → Kenton (HA3 0) £5,646/m² (n=3,122) · gap 17.4% · Semi-Detached, ~1940
  • OG card / deep link: lat=51.59199&lon=-0.3079&zoom=12.5&filter=Est.%20price%20per%20sqm:0:5900&filter=Good%2B%20secondary%20school%20catchments:1:11

Newton Heath vs Harpurhey: the same terraced house, about 42% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/m40-5-vs-m9-4
  • Hook: £106,740 less for an equivalent terraced house: same station, similar schools, ~1.18km apart
  • Newton Heath (M40 5) £2,812/m² (n=1,632) → Harpurhey (M9 4) £1,626/m² (n=3,530) · gap 42.2% · Terraced, ~1958
  • OG card / deep link: lat=53.51293&lon=-2.19574&zoom=12.5&filter=Est.%20price%20per%20sqm:0:1700&filter=Good%2B%20secondary%20school%20catchments:1:11

Childwall vs Broadgreen: the same semi-detached house, about 30% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/l16-7-vs-l14-6
  • Hook: £106,740 less for an equivalent semi-detached house: same station, similar schools, ~1.88km apart
  • Childwall (L16 7) £4,026/m² (n=500) → Broadgreen (L14 6) £2,840/m² (n=809) · gap 29.5% · Semi-Detached, ~1940
  • OG card / deep link: lat=53.40344&lon=-2.88529&zoom=12.5&filter=Est.%20price%20per%20sqm:0:3000&filter=Good%2B%20secondary%20school%20catchments:1:11

SE28 8 vs DA18 4: the same terraced house, about 30% cheaper per m²

  • Type: cheaper_twin · Page: /cheaper-twin/se28-8-vs-da18-4
  • Hook: £129,690 less for an equivalent terraced house: same station, similar schools, ~1.72km apart
  • SE28 8 £4,850/m² (n=5,033) → DA18 4 £3,409/m² (n=1,063) · gap 29.7% · Terraced, ~1993
  • OG card / deep link: lat=51.50039&lon=0.12568&zoom=12.5&filter=Est.%20price%20per%20sqm:0:3600&filter=Good%2B%20secondary%20school%20catchments:1:11

How many square metres £100,000 buys across England

  • Type: national_table · Page: /square-metres-per-100k
  • Hook: £100k buys ~152 m² of floor space in BD21 3 but only ~3 m² in Mayfair (W1K 2)
  • OG card / deep link: zoom=6&filter=Est.%20price%20per%20sqm:0:4000