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Q&As
Is complete roof replacement on an outbuilding permitted development and does it require a building regulations application?
I have an existing 21m2 concrete outbuilding in my back garden with flat (slightly pitched) corrugated sheet concrete roof. It forms a boundary with my neighbour on one side and is just over 3m high but was built decades ago. The roof is beyond repair so I intend to replace the entire roof structure with a fibre glass roof system which will mean adding additional structural support. It will continue to be used incidentally. Is replacing the entire roof permitted development and would I need to submit an application to building regs prior to starting work?
Answers
As far I’m aware any roof where more than 20% is to be replaced it does fall in to building control it used to be like for like would be ok this is no longer the case its all about insulation ect and son just consult your labc to be safe has a big impact when you sell if you don’t all the best
As the building is over 2.5m tall, and within 2m of the boundary, it does not fall within permitted development rights. Replacing the roof will therefore need formal planning permission.
Roof covering renewal is one of the activities covered under the competent person’s scheme so if a proficient person is contracted for the work there is no need to notify building control as the tradesperson will be certified as fully qualified for the job in hand. You’ll find similar schemes for replacement windows (FENSA), boilers (Gas Safe and OFTEC) and other types of home improvement. Go to www.competentroofer.co.uk to find someone in your area who qualifies. You will receive a certificate of compliance at the end of the project.
Mike Dade (planning consultant and Build It expert)
