Data Sources & Attribution
Last updated: 20 June 2026
Nookaly combines property listings with public and licensed datasets to score and analyse homes. We gratefully acknowledge the sources below and comply with the attribution terms of their licences.
Much of our area data is public sector information. Where you see a reference to the Open Government Licence:
Contains public sector information licensed under the Open Government Licence v3.0.
Property listings
Property listings are sourced from UK property portals (Rightmove and Zoopla) via a third-party data provider. Nookaly does not store the portals' listing content. We use only factual details from a listing — such as price, number of bedrooms, location and energy rating — and from those facts we generate our own descriptions and assessments using AI. Photographs are displayed via links to the original portals (their Open Graph image links), not copied or re-hosted. The descriptions, scores and analysis you see are Nookaly's own work, and every listing links back to its source so you can view the original in full.
Area & neighbourhood
- Crime statistics — Police.uk (Open Government Licence v3.0)
- Air quality (NO₂, PM2.5) — Defra UK-AIR (Open Government Licence v3.0)
- Demographics — ONS Census 2021 (Open Government Licence v3.0)
- Deprivation (Index of Multiple Deprivation) — Ministry of Housing, Communities & Local Government (Open Government Licence v3.0)
- Sold prices — Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Address data within Price Paid Data is processed against Ordnance Survey AddressBase, which incorporates Royal Mail PAF data — © Royal Mail and © Ordnance Survey Crown copyright. Nookaly uses only neighbourhood-level price aggregates, not individual addresses.
- Schools & childcare — Ofsted and the Department for Education (Open Government Licence v3.0)
- Planning applications — Greater London Authority Planning DataHub (Open Government Licence v3.0)
Property & energy
- Energy Performance Certificates — Ministry of Housing, Communities & Local Government. Licensed under the Open Government Licence v3.0; © Crown copyright and database right. Address data carries Royal Mail copyright — © Royal Mail.
- Council tax bands — Estimated from the Valuation Office Agency's Council Tax: stock of properties (CTSOP) open data, mapped using the ONS National Statistics Postcode Lookup (NSPL). Open Government Licence v3.0.
Maps, location & transport
- Postcode & location data — Ordnance Survey via Postcodes.io (Open Government Licence v3.0; © Crown copyright and database right)
- Maps — © Mapbox © OpenStreetMap contributors
- Road & rail (quietness & acoustics) — © OpenStreetMap contributors, licensed under the Open Database Licence (ODbL)
- Public transport — Powered by TfL, the Bus Open Data Service (Department for Transport) and National Rail. Journey routing via OpenTripPlanner.
Local amenities
- Shops, parks, healthcare, leisure — Powered by Foursquare
If you believe a dataset is missing the correct attribution here, please contact us at hello@nookaly.co.uk.