Is My House Listed?

A listed building is an individual property protected for its architectural or historic importance. A conservation area is a whole zone, often a street or neighbourhood, where the character is protected. Listed status is stricter and governs changes to the building itself. Conservation status mainly restricts external works and demolitions.

Grade I: exceptional interest, rare (around 2.5% of listed buildings). Grade II*: particularly important, more than special interest. Grade II: nationally important and of special interest. Most domestic listed buildings are Grade II. All three grades require Listed Building Consent for most changes.

Yes, but most works require Listed Building Consent from your local authority, separate from planning permission. This includes replacing windows, changing internal layouts or removing original features. Unauthorised works are a criminal offence. Always check before you start. I've worked on Grade II listed extensions in several London boroughs, the key is an early pre-application meeting with the conservation officer.

The tool checks a 100m radius around your postcode centroid. That's intentional: if a listed building is next door, party wall and sightline rules can still affect what you can build. The closer the listed building, the more likely the council will ask for additional consultation.