Home
A Victorian Gothic civic building with a clock tower

Planning permission in North Somerset

Most single-storey rear extensions within the national permitted development limits don't need planning permission in North Somerset. The rules are stricter in its 39 conservation areas, where side extensions, two-storey extensions and loft dormers need permission. Check your address to see which rules apply.

North Somerset at a glance

Conservation areas
39
Article 4 areas
38
Protected landscapes
Mendip Hills
Planning decisions
North Somerset Council

How many conservation areas are there in North Somerset?

North Somerset has 39 conservation areas. In a conservation area, permitted development rights are reduced: side extensions, two-storey extensions, loft dormers and cladding all need planning permission, and many councils add Article 4 directions on top.

Read more: extensions, loft dormers, garden rooms and solar panels in a conservation area.

Does North Somerset have Article 4 directions?

North Somerset has published 38 Article 4 areas. Inside them, some permitted development rights are removed, so work that would normally be allowed needs planning permission.

38 of the published areas don't say which rights they remove. Our checker tells people at those addresses to check with the council.

Directions listed by North Somerset:

What is an Article 4 direction?

Is any of North Somerset in a national park, National Landscape or green belt?

National parks and National Landscapes restrict permitted development in similar ways to conservation areas. Read more: extensions, loft dormers and garden rooms.

Listed buildings and protected trees in North Somerset

Listed buildings everywhere in England are recorded by Historic England, and the checker looks for them at every address. North Somerset also publishes 1,084 listed building outlines, which show exactly which building is listed.

North Somerset publishes its tree preservation orders (5,660 areas and individual trees), so we can flag protected trees near an address.

What planning data does North Somerset publish?

Planning data published by North Somerset Council
DataStatusRecords
Conservation area boundaries Published 39
Article 4 direction boundaries Published 38
Listed building outlines Published 1,084
Tree preservation order areas Published 1,493
Protected trees Published 4,167

Planning work on a home in North Somerset? Put a pin on your house and we'll check it against all of this.

Start a check

Other councils in South West

Data from planning.data.gov.uk, published by North Somerset Council and national bodies under the Open Government Licence, last updated here on 31 October 2026. North Somerset Council website.