Planning permission basics

Everything you need to know about planning permission in the UK. From what it is and when you need it, to how long it lasts and special requirements.

Supporting guides

How long does planning permission last?

Planning permission typically lasts three years. What counts as starting work and what happens if it expires.

Outline planning permission explained

Establish the principle of development before committing to detailed design. How outline permission and reserved matters work.

Listed building consent explained

Special consent required for alterations to listed buildings. What works need consent and how it differs from planning permission.

Other planning topics

Planning costs & fees — How much planning applications cost

Permitted development — When you can build without permission

Retrospective planning — Applying for permission after building

Building regulations — Building regulations vs planning permission