Policy information sourced from the Kensington and Chelsea Local Plan
CL8 Existing Buildings – Roof Alterations/ Additional Storeys
The Council will require roof alterations and additional storeys to be architecturally sympathetic to the age and character of the building and group of buildings.
To deliver this the Council will:
- permit additional storeys and roof level alterations where the character of a terrace or group of properties has been severely compromised by a variety of roof extensions and where infilling between them would help to reunite the group;
- resist additional storeys, and roof level alterations on:
- complete terraces or groups of buildings where the existing roof line is unimpaired by extensions, even when a proposal involves adding to the whole terrace or group as a coordinated design;
- buildings or terraces that already have an additional storey or mansard;
- buildings that have a roof structure or form of historic or architectural interest;
- buildings that are higher than surrounding neighbours, or where they would detract from significant skylines or profiles;
- buildings or terraces where the roof line or party walls are exposed to long views from public spaces, and where they would have an intrusive impact on that view or would impede the view of an important building or open space beyond;
- buildings that, by the nature of the roof construction and architectural style, are unsuitable for additional storeys, e.g. pitched roofs with eaves;
- mansion blocks of flats where an additional storey would add significantly to the bulk or unbalance the architectural composition;
- terraces that are already broken only by isolated roof additions.
For more information please see the Kensington and Chelsea Local Plan