Do I need planning permission for an extension?
Permitted development, planning permission and building control explained simply, so you know where you stand.
Planning is the part of an extension that worries homeowners most, but it is often simpler than people expect. Here is what you actually need to know.
Permitted development
Many single storey rear and side extensions can be built under permitted development rights, which means they do not need a full planning application. There are limits on size, height and how close you build to boundaries, and these are stricter for properties in conservation areas or for listed buildings.
Even under permitted development, it is wise to apply for a lawful development certificate so you have proof the work was allowed. We handle this as part of the process.
Building control
Planning permission and building control are two different things. Almost every extension needs building control sign-off, which confirms the work meets structural, insulation, fire and safety standards. We manage building control on every project so the finished work is properly certified.
