Check planning constraints by postcode
Enter a postcode to check for conservation areas, listed buildings, green belt, Article 4 directions and tree preservation zones, the constraints that control what you can change about a property.
You can check whether a property is in a conservation area, the green belt, or covered by an Article 4 direction for free using official planning data. These constraints matter because they remove or restrict permitted development rights: in a conservation area you may need permission for windows, extensions and even satellite dishes; a listed building needs consent for almost any alteration, inside or out.
Frequently asked questions
What does living in a conservation area actually restrict?
Councils control demolition, restrict permitted development (extensions, cladding, sometimes windows and doors), and protect trees. Rules vary by council and many areas also have Article 4 directions that remove further rights. It usually also supports property values, the restrictions preserve the area's character.
What is an Article 4 direction?
A council order removing specific permitted development rights, meaning works that would normally be automatic (like converting a house to an HMO, or altering a front elevation) need a planning application instead.
Can I extend a listed building?
Sometimes, with listed building consent, and the consent regime has real teeth: unauthorised alterations carry serious legal consequences, interiors included, and the council can require work to be undone. Budget for specialist architects and materials, and check what previous owners did: unauthorised past works become your problem when you buy. The council's conservation officer is the authority on what needs consent.
More free checks
Official open data under the Open Government Licence. Indicative information only, always verify through full searches during conveyancing.