Data sources

The official records behind every FirstBid report

FirstBid does not hold its own property database. Every figure in a report comes from a named public register, and every register has limits we publish alongside it.

Get energy performance of buildings data

Ministry of Housing, Communities and Local Government

What we use it for. Total floor area, current and potential energy rating, heating and fuel type, construction age band, insulation descriptions and improvement recommendations.

Known limits. Certificates are valid for ten years and may predate later works. Matching a certificate to a specific flat in a converted building is not always possible; where it is not, we report it as unverified.

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HM Land Registry Price Paid data

HM Land Registry

What we use it for. Registered sale prices and dates for the property and its postcode, property type, tenure and new-build flag.

Known limits. England and Wales only, from 1995, with a registration lag that leaves recent months incomplete. Some transfer types are excluded, and no floor area or condition is recorded.

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planning.data.gov.uk

Ministry of Housing, Communities and Local Government

What we use it for. National planning designations at the property's coordinates: conservation areas, listed buildings, statutory flood zones, article 4 directions and similar constraints.

Known limits. Holds designations, not individual planning applications. Application history sits with the local planning authority.

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Environment Agency flood data

Environment Agency

What we use it for. Flood warning and alert areas covering the property's location, plus any warnings currently in force.

Known limits. England only. Long-term modelled risk is published through the separate GOV.UK long-term flood risk service, which we link to rather than reproduce.

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Police.uk street-level crime

Home Office

What we use it for. Recorded crime counts by category for the most recent published month around the property's coordinates.

Known limits. Locations are snapped to anonymised points, so this is area context only and is never street-accurate. Recorded crime is not the same as crime that occurred.

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postcodes.io (ONS postcode directory)

Open data derived from Office for National Statistics releases

What we use it for. Postcode to coordinates, local authority, ward, LSOA and region — the geography every other lookup depends on.

Known limits. Reflects the ONS release it was built from, so very new postcodes can be missing.

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UK House Price Index

HM Land Registry, ONS and partners

What we use it for. Mix-adjusted local authority price movement, used as market context rather than as a property-level figure.

Known limits. Published with a lag and only meaningful at local authority level or above.

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Licensing

These datasets contain public sector information licensed under the Open Government Licence v3.0. How we match those records to a specific property, and what we refuse to infer from them, is set out on our methodology page.

Check a property before you offer

Run any UK postcode through our free lookup for EPC bands, flood exposure, registered sold prices and recorded crime. Got a specific listing? Paste the Rightmove link for the full six-section FirstBid report.