This is not a local authority search (LLC1 or CON29). Open government data, explained. Details

Method and sources

This is not a local authority search. It gathers open government data for one point.

Sources

• planning.data.gov.uk (Ministry of Housing, Communities and Local Government): © Crown copyright and database right; © Historic England; Contains Ordnance Survey data. Open Government Licence v3.0
• Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0 (medians by district, 2025, from 11 sales; no addresses)
• ONS Postcode Directory, through postcodes.io

How it works

The checker turns a postcode into its centre point and asks the national planning data what covers that point, then looks for listed buildings in a square of about 100 m. Coverage: 10,705 conservation areas.

Limits

England only. A postcode covers several homes and a boundary can run between them. Councils publish to the national data at different speeds, so a recent designation may be missing: ask the council to confirm.

Artificial intelligence

AI helped draft the plain-English explanations from the legislation cited. It adds no facts about a property.