Changes to permitted development rights for household extensions

On 30 May 2013, The Town and Country Planning (General Permitted Development) (Amendment) (England) Order 2013 comes into force. This amendment introduces a temporary relaxation of the permitted development rights for households and a new procedure, which must be followed in order to benefit from the new legislation.

Limitations and conditions

If you want to construct a single-storey rear extension behind the original rear wall of your house, the extension must comply with the following limitations: 

  • for terraced or semi-detached houses between 3m and 6m deep or
  • for a detached house between 4m and 8m deep
  • not exceed 4m in height.

 It must also comply with all the remaining provisions of the Order, i.e. that 

  1. if the extension would be within 2 metres of the boundary of the house, the eaves height of the extension would not exceed 3 metres;
  2. the external materials (other than materials used in the construction of a conservatory) would be of a similar appearance to those used in the construction of the exterior of the existing house; and
  3. your property is not located in a conservation area.

Prior approval procedure

The amended Order has introduced a prior approval procedure. If you believe your extension falls within the above criteria, then you must notify us that you are intending to build an extension. Although there is not a statutory application form to complete, the Council recommends you use the following form in order to ensure we have all the required information. 

DC Lg Hs Extn PD notification form

We will then notify the adjoining properties that you want to extend your property and they will be given 21 days to respond. If no objections are received at the end of the 21-day period, prior approval will not be required. If an objection is received, then the Council will consider the impact of the extension on the amenities of the adjoining properties.  

Prior Approval will be refused if it is decided the extension would have an unacceptable impact on the adjoining properties. If the impact is considered to be acceptable then Prior Approval will be granted. Your extension cannot be started until we have notified you that the Prior Approval has been approved, which must be within 42 days from the submission date. If you do not receive a written notice from the Council (i.e. notifying you of the outcome) within 6 weeks from the date the Council has received your notification, then you should contact us to check whether or not we have issued a written notice, in case it has been lost in the post.

You have a right of appeal to the Planning Inspectorate if Prior Approval is refused. 

Completion notification

In order to benefit from the permitted development rights introduced by the amended Order, the extension must be completed on or before 30 May 2016. You must notify the council in writing of the date of completion. Failure to comply with this procedure may lead to Enforcement Action. You will also need Building Regulations approval.