But did you know?
Single-storey rear extensions up to 4 metres in height and up to 8 metres from the original rear wall for detached houses (6 metres for other types of houses) can be normally built under permitted development rights.
Two-storey rear extensions can normally extend up to 3 metres from the original rear wall, but must not be closer than 7 metres to the rear boundary. Single-storey side extensions can normally be up to half the width of the original house, but not where facing a highway or within 2 metres of the side boundary.
Loft space can normally be extended by up to 50 cubic metres for detached and semi-detached houses, and 40 cubic metres for terraced houses. Rooflights can also be installed
Porches to any external door are usually permitted if it does not exceed 3 square metres, is no higher than 3 metres, and is more than 2 metres from any boundary adjacent to a highway.
No extension should extend beyond the main (usually the front) elevation.
Materials
The materials used in any of the above works must be similar in appearance (colour, texture, style and size) to the existing house.
Conservation areas and listed buildings
Permitted development rights are more restricted in conservation areas and on listed buildings.
Having read and understood the above information and checked that permission has not been granted for the works, I confirm that I wish to report an alleged breach of planning control. Click this link to report an alleged breach.