Do I need planning permission UK
Find out in seconds whether your project requires full planning permission, falls under permitted development rights, or needs Building Regulations approval.
Understanding planning permission in England and Wales
Planning permission is required for most significant changes to a building or land. However, many common home improvements fall under "permitted development rights" — a set of rules that allow certain work without needing to apply to your local planning authority.
What is permitted development?
Permitted development rights allow homeowners to carry out improvements within defined limits without planning permission. Common permitted development includes: small single-storey extensions, loft conversions within volume limits, outbuildings in gardens, and internal alterations. These rights can be removed in conservation areas, national parks, and areas of outstanding natural beauty.
When do you need planning permission?
You need planning permission for: extensions that exceed permitted development limits, changes to a listed building, work in a conservation area that removes permitted development rights, changing the use of a building, and most new-build structures.
What are Building Regulations?
Building Regulations are separate from planning permission. They set minimum standards for design, construction, and alterations — covering structure, fire safety, energy efficiency, electrical safety, drainage, and accessibility. Many projects that do not need planning permission still require Building Regulations approval.