20 Addison Avenue, LONDON, W11 4QR
Removal of side infill extension, conservatory and chimney stack; construction of new ground floor rear extensions and associated rooflights; replacement and new windows on the front, rear and side elevations; construction of an additional rear dormer window and rooflights to roof level. Excavation of a single-storey basement and external lightwells, and associated landscaping,áthat accommodates an additional residential dwelling with devoted access from the front-lightwell (amended description).