perfect-postcode/analysis/out/findings/cheaper-twin__rm14-2-vs-rm12-5.json
2026-06-28 11:59:44 +01:00

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{
"slug": "cheaper-twin/rm14-2-vs-rm12-5",
"type": "cheaper_twin",
"page_path": "/cheaper-twin/rm14-2-vs-rm12-5",
"title": "Upminster vs Hornchurch: the same semi-detached house, about 20% cheaper per m\u00b2",
"hook": "\u00a3115,290 less for an equivalent semi-detached house: same station, similar schools, ~2.99km apart",
"shocking_number": "20%",
"pricey": {
"sector": "RM14 2",
"name": "Upminster",
"label": "Upminster (RM14 2)",
"named": true,
"est_psqm": 6360,
"n": 3026
},
"twin": {
"sector": "RM12 5",
"name": "Hornchurch",
"label": "Hornchurch (RM12 5)",
"named": true,
"est_psqm": 5079,
"n": 3133
},
"stats": {
"gap_pct": 20.1,
"gap_per_sqm": 1281,
"gap_on_90sqm": 115290,
"gap_on_avg_home": 111447,
"dominant_type": "Semi-Detached",
"build_year": 1940,
"good_secondary_catchments": 3.7,
"station_km": 0.77,
"distance_km": 2.99
},
"map_query": "lat=51.54892&lon=0.22193&zoom=12.5&filter=Est.%20price%20per%20sqm:0:5300&filter=Good%2B%20secondary%20school%20catchments:1:11",
"map_url": "https://perfect-postcode.co.uk/?lat=51.54892&lon=0.22193&zoom=12.5&filter=Est.%20price%20per%20sqm:0:5300&filter=Good%2B%20secondary%20school%20catchments:1:11",
"og_image": "https://perfect-postcode.co.uk/api/screenshot?og=1&lat=51.54892&lon=0.22193&zoom=12.5&filter=Est.%20price%20per%20sqm:0:5300&filter=Good%2B%20secondary%20school%20catchments:1:11",
"methodology": "Postcode sectors (e.g. N10 3) compared on estimated \u00a3/m\u00b2 of floor space. A pair is only called a 'twin' when the two sectors share the dominant property type, build era (\u00b130y), good-school catchment provision, station access, deprivation/tenure, education, age and home size, so the price gap reflects a name premium, not a different kind of area. Estimates, not valuations; aggregated to sector, never address-level.",
"needs_name_check": false,
"attribution": "Contains HM Land Registry data \u00a9 Crown copyright and database right. Licensed under the Open Government Licence v3.0.",
"sources": "HM Land Registry \u00b7 EPC (DLUHC) \u00b7 Ofsted \u00b7 DfT \u00b7 ONS \u00b7 Police.uk"
}