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When do I need planning permission for a loft conversion?

When do I need planning permission for a loft conversion?

You require planning permission if:

The materials used in the construction of the loft is not keeping with the appearing of the existing house.

The volume of the new loft conversion is more than the limits allowed in permitted development. Currently, the limits are 50 cubic metres for semi-detached and detached houses and 40 cubic metres for terraced houses.

  • The dormer extension will be facing the highway.
  • The height of the new loft extension is more than the height of the existing roof.
  • The loft conversion includes a veranda, balcony or raised platform
  • The loft conversion features side facing windows overlooking your neighbour’s property.
  • The existing building is located within a designated area such as a conservation area, world heritage site, national park or an area of outstanding beauty.