The following policy guidelines have been adopted by the County Borough Council:-
- REAR GROUND FLOOR EXTENSIONS to terraced properties will not normally be permitted to project more than 7.3 metres beyond the main back wall** of the dwelling.
- REAR FIRST FLOOR EXTENSIONS to terraced properties will not normally be permitted to project more than 3.6 metres beyond the main back wall** of the dwelling.
- Where the properties on both sides of a dwelling already extend beyond that allowed by these guidelines, an extension may be allowed to the same length as that of the smaller of the neighbouring extensions.

Definition of the Main Back Wall of a Terraced Property
**The main back wall is, for this purpose, the back wall supporting the main pitched roof, and shall not include either an original rear wing or any other extension.