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.