Outbuildings

Class E of The Town and Country Planning (General Permitted Development) (England) Order 2015 permits the erection of buildings, enclosures, pools and containers subject to limitations and conditions. 

In addition to complying with the limitations, the condition is that it needs to be used incidental to the main house. Here is a list of some examples:

  • Shed
  • Office
  • Garage
  • Greenhouse
  • Gym
  • Store room
  • Swimming pool
  • Kennels 

Please refer to this legislation.


Dormers

Class B of The Town and Country Planning (General Permitted Development) (England) Order 2015 permits the addition or alteration to a roof of a house, subject to limitations and conditions. 

Some of the limitations are:

  • The dormer must not exceed the highest part of the roof of the house.
  • The dormer cannot be erected on the front of the house.
  • The cubic content of the roof space must not exceed 40 cubic metres for a terrace house, and 50 cubic metres for any other house.

Some of the conditions are:

  • The materials used in the exterior work must be similar to the existing house.
  • The dormer must be set back from the eaves by 0.2 metres.
  • Any window on a side elevation must be obscured and non-opening below 1.7 metres of the floor of the room.

Please refer to this legislation.