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How the UK Property Price Explorer Works

How the UK Property Price Explorer uses HM Land Registry open data to show real sold prices by area, property type, and budget. Methodology and sources.

Verified against HM Land Registry - Price Paid Data on 28 Feb 2026 Updated 28 February 2026 4 min read

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Summary

The UK Property Price Explorer shows real property transaction prices from HM Land Registry’s Price Paid Data (PPD). It covers every residential property sale in England and Wales since 1995 — over 28 million transactions. You can search by postcode district or town, filter by property type, and see how your budget compares to local prices.

Unlike estimated valuations from property portals, these are actual sale prices recorded at completion. The data is updated monthly by HM Land Registry under the Open Government Licence.

Data sources

HM Land Registry Price Paid Data

The primary data source is the Price Paid Data published by HM Land Registry. Each record contains:

  • Price paid — the actual amount paid at completion
  • Date of transfer — when ownership transferred
  • Postcode — full postcode of the property
  • Property type — Detached (D), Semi-detached (S), Terraced (T), Flat/Maisonette (F), Other (O)
  • New build flag — whether the property was newly built
  • Tenure — Freehold (F) or Leasehold (L)
  • Address — PAON, SAON, street, town, district, county

The data excludes commercial properties, properties sold at auction below market value, transfers by gift or inheritance, and right-to-buy sales.

Energy Performance Certificate (EPC) data

Where available, transactions are enriched with EPC data from the EPC Register, providing:

  • Floor area (square metres)
  • Number of habitable rooms
  • EPC rating (A–G)

EPC matching uses postcode and address to link certificates to sales records. Not all properties have a matching EPC — coverage is highest for properties sold after 2008 when EPCs became mandatory for all sales.

How the statistics work

Area aggregation

Property prices are aggregated by postcode district (the first part of the postcode, e.g. BS1, SW1A, M1). For each district, the explorer calculates:

StatisticDescription
Median priceThe middle value when all sales are ranked by price. More robust than mean for property data because it is not skewed by a small number of very high-value sales.
Mean priceThe arithmetic average. Useful for comparison but can be pulled upward by expensive outliers.
25th percentile (P25)The price below which 25% of sales fall. Represents the lower end of the market.
75th percentile (P75)The price below which 75% of sales fall. Represents the upper end of the market.
Transaction countTotal number of sales in the period. Higher counts mean more statistically reliable aggregates.

These statistics are calculated for each property type (detached, semi-detached, terraced, flat) as well as an overall “all types” figure.

Budget comparison

When you set a budget, each property type card shows whether the median price for that type falls within your budget. The interquartile range bar (P25–P75) gives a visual sense of the price spread, with your budget marked as a reference line.

within_budget = budget ≥ median_price

Where

budget= Your stated budget (£)
median_price= Median sale price for the property type in the selected district

This is a simplified comparison. In practice, what you can afford depends on your mortgage approval, deposit, stamp duty, legal fees, and other costs. Use the affordability calculator for a full picture.

Limitations

  • Historic prices, not current values. PPD records what a property sold for, not what it is worth today. Prices may have changed since the last sale.
  • Aggregation lag. HM Land Registry publishes data monthly, typically 4–6 weeks after completion. Very recent sales may not appear.
  • No condition data. PPD does not include property condition. Two properties at the same price may differ significantly in quality.
  • EPC coverage is incomplete. Floor area and room counts are only available where an EPC has been matched. Older properties may lack EPC data.
  • Postcode district granularity. Prices can vary significantly within a single postcode district. A district-level median smooths out street-by-street variation.
  • Excluded transactions. Right-to-buy, auction sales, and non-market transfers are excluded, which may understate activity in some areas.

Data licensing

Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

EPC data is sourced from the Ministry of Housing, Communities and Local Government under the Open Government Licence.

出典

Gov
Gov
HM Land Registry - Open Dataaccessed 28 Feb 2026
Gov
EPC Register APIaccessed 28 Feb 2026
Gov
Open Government Licence v3.0accessed 28 Feb 2026
property-prices land-registry house-prices property-data epc