Conservation Area Checker
Over 10,000 conservation areas exist in England alone. If a property falls within one, permitted development rights may be restricted and more works will require planning permission — including changes that would normally be allowed elsewhere.
Planning Portal — Check Planning Constraints
Use the Planning Portal to check planning constraints including conservation area designation for any address in England and Wales. You can also check your local council's website directly for conservation area maps.
Check on Planning Portal →Conservation area maps are also published on individual local council websites — search for your council and “conservation area map” to find the most detailed local information.
What conservation area designation means for owners
Conservation areas are designated by local planning authorities under the Planning (Listed Buildings and Conservation Areas) Act 1990 to protect the special architectural or historic character of an area. Unlike listed building status, the designation applies to the whole area rather than individual buildings.
The main practical restrictions compared to properties outside a conservation area are:
- –Article 4 directions — many conservation areas have Article 4 directions which remove specific permitted development rights. This commonly affects window replacements, external cladding, door changes, and satellite dishes visible from the highway.
- –Trees — any tree with a trunk diameter of 75mm or more requires six weeks' written notice to the council before any works. Failing to give notice is a criminal offence.
- –Demolition — demolishing any building or structure over 115m³ requires Conservation Area Consent.
- –Cladding and rendering — applying external cladding or rendering to a property in a conservation area requires planning permission.
Benefits of conservation area status
While conservation area status imposes additional planning constraints, it also provides protections that many property owners and buyers value:
- –Protection from unsympathetic development that would harm the character of the area
- –Local authority powers to require the maintenance of historic buildings
- –Potential access to grants and funds for historic building repairs in some areas
- –Generally positive effect on property values due to maintained character and reduced permitted development by neighbours
Frequently Asked Questions
- How do I find out if a property is in a conservation area?
- The most reliable method is to check the local planning authority's website, where conservation area maps are usually published. You can also use the Planning Portal to search for planning constraints by address. Your solicitor will confirm conservation area status in the local authority search during conveyancing.
- Can I extend a property in a conservation area?
- Usually yes, but extensions in conservation areas are more restricted than elsewhere. Permitted development rights — which allow certain works without planning permission — are reduced or removed in conservation areas, particularly for works visible from the highway. Always check whether an Article 4 direction applies to the specific property before starting any work.
- Can I cut down a tree in a conservation area without permission?
- No. In a conservation area, you must give the local planning authority six weeks' written notice before cutting down, topping, lopping, or uprooting any tree with a trunk diameter of 75mm or more (measured 1.5m above ground). Carrying out tree works without giving notice is a criminal offence with fines of up to £20,000 or an unlimited fine for obstruction.
- Do I need planning permission to replace windows in a conservation area?
- In many conservation areas, replacing windows — especially replacing original wooden sash windows with uPVC — requires planning permission. This is because window replacement is often subject to an Article 4 direction removing permitted development rights for window changes. Always check with the local planning authority before replacing any windows in a conservation area property.
- Does being in a conservation area affect property value?
- Generally yes, positively. Conservation area status protects the character and appearance of the surrounding area, which tends to maintain and enhance property values over time. The reduced likelihood of unsympathetic development nearby is valued by buyers. However, the additional planning restrictions can increase renovation costs and timescales, which may be a consideration for buyers planning significant works.