GB5 Extension of Existing Dwellings in the Green Belt Policy
The extension of existing dwellings in the Green Belt will be permitted, provided that the floorspace of the resultant dwelling is no more than 50% larger than that of the habitable floorspace of the original dwelling, and subject also to the enlarged dwelling not having a harmful visual impact on its surroundings.
Reasoned justification :
7.21 The limited extension of existing dwellings should not harm the open appearance of the Green Belt, especially if the extension is in keeping with the original dwelling. In assessing such proposals, the Local Planning Authority will be concerned to avoid any disproportionate extensions to the original dwelling. In addition, the Local Planning Authority will consider any proposed building with a volume greater than 10.0 cubic metres and within 5.0 metres of the existing building as an extension of the dwelling.