PPS 7 Addendum Residential Extensions and Alterations·Page 14·A15

Loft space conversions and roof alterations

Loft space can provide additional accommodation, but roof profile alterations are sensitive to a building's appearance and streetscape character. Rear extensions should not project above the existing ridge; rooflights are sympathetic but must comply with Building Regulations for means of escape.

The use of loft space to provide bedrooms or other living space can often provide additional accommodation. However, alterations to the roof profile of any building can be particularly sensitive as roofs play an important part in contributing to a building's appearance and the overall character of the area. An extension to the rear of a property should ensure that the roof of the extension does not project above the ridge of the existing dwelling as this can give an unsightly view along the streetscape. Rooflights, which lie parallel with the plane of the roof, are a particularly sympathetic way of providing light to a room within a roofspace. They may often constitute permitted development but care should be taken to ensure compliance with Building Regulations where such windows are intended to provide a means of escape.

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