Roofing – Planning Permission

There are two questions we are frequently asked regarding roofing:

  1. Does replacing/renewing my roof require planning permission?
  2. Will I need planning permission before I can add a skylight?

The answer, directly from the Government's "Planning Portal", is:

"Alterations to the roof of a house (e.g. to re-roof or insert skylights) is considered to be permitted development (not requiring planning permission)..."

There are, however, a few limits and conditions attached to that.

  • Must not project more than 150mm from the plane of the existing slope
  • Must not exceed the height of the existing roof
  • Any side-facing windows must be obscure-glazed ('frosted'); and, if opening, to be 1.7m above the floor of the room they are installed in

Some buildings that contain flats, were converted to homes or weren't purpose built as a home, do have restrictions under "Permitted Development" rights.  So, you should check through the comprehensive technical guide before beginning, or scoping out, any work here:

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