It is not normally necessary to apply for planning permission to re-roof a house, or to retrofit rooflights or skylights. The development rules allow for roof alterations subject to the following limits and conditions: ... Alterations should not be higher than the highest part of the existing roof.

Do you need planning permission for a new roof?

Whilst you will not usually require planning permission to re-roof your home, you probably will need to apply for Building Regulations approval. If your property's roof cannot be repaired or restored, then you will need to have the whole roof replaced.

Can I change the pitch of my roof without planning permission?

Converting your flat roof to a pitched roof does require planning permission, as any alteration that is higher than the highest part of the existing roof requires approval.