Roof extensions and terrace at 32 and 32a Khartoum Road, London SW17

“Rear Mansard Roof Extension and Ridge Raise • The proposal includes the construction of a mansard-style roof extension to the rear of the main roof. This extension would span the full width of the roof, approximately 5.5 metres, and would have a rear elevation sloped at 70 degrees. A dormer window is proposed along the rear elevation, measuring 1.9 metres in height and 1.2 metres in width. The extension would be finished in zinc cladding.”

“Extension Over Rear Addition and Roof Terrace • An extension is also proposed above the existing two-storey rear addition. This extension would have a depth of approx.. 3 metres from existing eaves to the end point of the extension, and a height of 2.2 metres, with the rear and side elevations sloped at 70 degrees. The exterior would be finished in zinc cladding. French doors are proposed on the rear elevation, providing access to a roof terrace.”

“SITE DETAILS: The application site is a two-storey mid terrace dwellinghouse located on the north-west facing side of Khartoum Road. The property, being a purpose built pair of maisonettes, is two flats with one located on the ground floor and a second located on the first floor.”

“The area is residential in nature and properties of a similar scale and design surround. The site is not listed or within a conservation area.”

“To assess the potential impact on daylight and sunlight, the ‘45-degree’ and ‘25- degree’ tests from the BRE Guide: Site Layout Planning for Daylight and Sunlight – A Guide to Good Practice are applied. These tests determine whether an extension may cause a material reduction in interior daylight.”

“Consequently, the proposal is considered to have adequately addressed fire safety at this initial planning and design stage. The proposal would therefore accord with policy D12 of the London Plan (2021). Conclusion/Planning Balance 4.1 The design and scale of the proposal would provide an acceptable scheme, which would not harm the character or appearance of the surrounding area.”

“Condition AC19 - Details of materials prior to above ground works Prior to commencement of above ground works details and sample materials of the standing seam zinc cladding shall be submitted to and approved in writing by the local planning authority. The development shall be carried out in accordance with the approved materials and thereafter so retained.”

“Condition AC23 - Screening to balcony Prior to commencement of use of the terrace/ balcony as shown on drawing number 3_201 Rev H and 3_202 Rev F the obscure glazed screening to each side and rear at a minimum height of 1.7m above finished floor level shall be installed. The screening shall be retained and maintained as such thereafter.”

“RESOLVED – (Unanimous) that planning permission be granted as set out in the report.”