Can you raise a garage roof without planning permission?

Would this fall under permitted development?

Asked by Cheryl on 31st Jan 2026
Expert Trade Answers
"Hi

Under Permitted Development (PD) rights, many outbuildings including garages can be altered without a planning application, as long as the changes stay within certain limits, for example:
• The garage stays single-storey.
• The overall height stays within the permitted height limits (normally max 4 m with a dual-pitched roof or 3 m for other roofs).
• The structure does not cover more than half the area around the original house.
• The garage is behind the house’s principal elevation.

Minor roof repairs or replacements that don’t significantly change the shape or height typically fall under PD and don’t need planning permission


Please let me know if you have any further questions, we’d be happy to help

Best Regards, James
JP Building Services"
Answered on 31st Jan 2026 - Member since Jan 2026 - report
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