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Do I need planning permission for a Velux loft conversion?

Do I need planning permission for a Velux loft conversion?

When it comes to rooflights or Velux windows, the planning portal says you typically don’t need planning permission for a Velux window. You only need planning permission if

  • The window will protrude beyond 150 mm above the existing roof plane.
  • You plan to alter the highest part of the roof or it is a side facing the window that could raise privacy concerns.
  • The extension is higher than the highest part of the existing roof of the building.
  • The maximum height of the loft conversion exceeds 4m.
  • Your Brighton home is on a designated land.
  • The loft conversion includes a balcony, veranda or raised platform.
  • The volume of the addition should not exceed the limits in permitted development. That terraced houses is 40 cubic metres and detached and semi-detached houses is 50 cubic metres.