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Common projects: Roofs

Planning Permission

You do not normally need to apply for planning permission to re-roof your house or to insert roof lights or skylights.

However, there are some special rules which govern extensions to the roof.

Read more about work on roofs and planning permission.


Building Regulations

If you want to carry out repairs on or re-cover less than 25 per cent of the area of a pitch or flat roof, you will not normally need to submit a building regulations application. You will need approval, however, if:

  1. You carry out structural alterations
  2. The performance of the new covering will be significantly different to that of the existing covering in the event of a fire
  3. You are replacing/ repairing more than 25 per cent of the roof area, in which case, the roof thermal insulation would normally have to be improved.

There are separate rules for construction of new roofs.

• Read more about work on an existing roof.
• Read more about new roofs for extensions and outbuildings.