This guidance reflects increases to the size limits for single-storey rear extensions which apply between 30 May 2013 and 30 May 2016, and the associated neighbour consultation scheme.

On 1st October 2008 the revised Permitted Development Rights for Householders came into force and this new legislation represents a significant change to the previous system.

The government publishes Approved Documents, which demonstrate how the requirements of the Building Regulations may be satisfied.

They are not the only means of satisfying these requirements. Other ways can include using guidance published by the British Standards Institute, Building Research Establishment etc.

The requirements of the Building Regulations can be divided into 13 different subjects:

Certain buildings and works are exempt from control under the Building Regulations.