Trust and coverage
Perfect Postcode combines property, transport, education, environment, and local-service datasets so buyers can compare postcodes consistently. This page explains what the data is for and where it should be verified.
Perfect Postcode combines 20 open datasets covering property prices, energy performance, transport, demographics, crime, environment, and more.
Source: Greater London Authority (GLA)
London social-housing locations from the October 2024 snapshot. Larger dots represent more social homes at a location. Includes council and housing association homes; it does not verify current council tenancy.
Source: HM Land Registry
Complete historical property sale prices for England.
Source: Ministry of Housing, Communities & Local Government
Domestic Energy Performance Certificates providing floor area, number of rooms, construction year, energy ratings, property type, and built form. Matched with Price Paid records by address within each postcode. Property owners can opt out of public disclosure.
Source: ONS / ArcGIS
Maps postcodes to coordinates and statistical area codes, used to link all area-level datasets to individual properties.
Source: ONS
Population percentages by ethnic group (South Asian, East Asian, SE Asian, Black, Mixed, White, Other) per local authority.
Source: data.police.uk
Police street-level incidents with anonymised, approximate coordinates. We count points within postcode boundaries plus a 50 m buffer and calculate average annual counts by crime type over covered months in the last two or seven years. Overlapping buffers can count the same incident for more than one postcode; these are not per-capita rates.
Source: OpenStreetMap contributors / Geofabrik
Points of interest covering shops, restaurants, healthcare, leisure, tourism, and more across Great Britain.
Source: GEOLYTIX
Supermarket and convenience store locations across the UK, including chain retailers such as Waitrose, Tesco, Sainsbury’s, Asda, Morrisons, Aldi, Lidl, Co-op, M&S, Iceland, and Spar.
Source: Ordnance Survey
Authoritative green space boundaries for Great Britain, including public parks, gardens, playing fields, and play spaces. Polygon centroids are used for park proximity counts and distance-to-nearest-park calculations.
Source: Forest Research / Defra NCEA
Tree canopy polygons for lone trees, groups of trees, and small woodlands in England. Used here to estimate tree coverage percentiles around postcode centroids.
Source: Forest Research
Woodland parcels of at least 0.5 ha across England, which the Trees Outside Woodland map deliberately excludes. Unioned with the TOW canopy so the tree-coverage metric and map overlay also include woods and forests.
Source: Planning Data / local planning authorities
Designated conservation area boundaries for England. Used to flag whether a postcode representative point falls within a conservation area.
Source: Historic England National Heritage List for England
Listed-building point records for England. Used to flag properties whose address appears to match a nearby listed-building entry.
Source: Department for Transport
Station and stop locations for rail, bus, metro/tram, ferry, and airports across England.
Source: Defra / Environment Agency
Road noise levels (24-hour weighted average) from the 2022 strategic noise mapping, modelled at high resolution and sampled at each postcode.
Source: Ofsted
Latest inspection outcomes for state-funded schools (as at April 2025). Averaged per postcode to give a local school quality score (1=Outstanding to 4=Inadequate).
Source: Ofcom
Fixed broadband coverage and maximum download speeds by area from Ofcom Connected Nations 2025.
Source: Ministry of Housing, Communities & Local Government
Annual council tax rates for Bands A-H for all 296 billing authorities in England, for a dwelling occupied by two adults. Joined to properties via local authority district code from the NSPL postcode lookup.
Source: ONS / Valuation Office Agency
Median monthly private rental prices by local authority and bedroom category (Oct 2022 – Sep 2023). Joined to properties via local authority district code and estimated bedroom count.
Source: UK Parliament
Candidate-level results for the July 2024 UK General Election. Aggregated to constituency level: voter turnout (%) and party vote shares (%). Joined to properties via the parliamentary constituency code (pcon) from the NSPL postcode lookup.
The product uses property transaction and housing-context datasets to support filters such as sale price, property type, tenure, floor area, energy performance, and estimated current value.
Local-context filters help compare postcodes on signals that affect daily life. They should be treated as screening data and checked against current official sources for decisions.
Travel-time filters are designed for consistent area comparison. Route availability, disruption, parking, walking access, and timetable details should be verified before committing to an area.
Several core property, education, and local-context datasets are jurisdiction-specific. England coverage keeps comparisons more consistent.
Use the map as a shortlist tool. If a postcode matters, verify the latest details with current official sources and direct local checks.
Learn more about the data, comparisons and checks behind your search.
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