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Data Sources

The public datasets behind NakedPrice, with their required attribution. Most are licensed under the Open Government Licence v3.0. England & Wales.

Sold prices & addresses — HM Land Registry Price Paid Data

Used for: sold prices, property addresses, dates, and property types. Addresses shown on this website are sourced from HM Land Registry.

Contains HM Land Registry data © Crown copyright and database right 2026.
This data is licensed under the Open Government Licence v3.0.
Address data reproduced with permission of Royal Mail.

House price index — HM Land Registry UK House Price Index (UKHPI)

Used for: adjusting older comparable sales to current values over time.

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

Floor area & energy attributes — Energy Performance of Buildings Register

Used internally for: floor area and energy-efficiency attributes. EPC address data is not displayed.

Contains public sector information licensed under the Open Government Licence v3.0.
© Crown copyright.

Broadband — Ofcom Connected Nations

Used for: broadband availability and speeds by postcode.

Contains Ofcom data © Ofcom, licensed under the Open Government Licence v3.0.

Flood risk — Environment Agency & Natural Resources Wales

Used for: flood-risk indicators by area (England & Wales).

© Environment Agency copyright and/or database right 2026. All rights reserved.
Contains Natural Resources Wales information © Natural Resources Wales and database right.

Deprivation — Indices of Deprivation (per nation)

Used for: area deprivation context. England and Wales use separate indices and are not directly comparable across nations.

Contains public sector information licensed under the Open Government Licence v3.0.
England: Index of Multiple Deprivation © MHCLG. Wales: Welsh Index of Multiple Deprivation © Welsh Government.

Postcodes & geography — ONS Postcode Directory

Used for: locating postcodes and linking areas to statistics.

Contains OS data © Crown copyright and database right 2026.
Contains Royal Mail data © Royal Mail copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v3.0.

Attribution years reflect the dataset editions in use. This list is maintained as datasets are added. Datasets not yet shown on the site (e.g. crime, census, schools) are not listed until live.