49 Blenheim Crescent, LONDON, W11 2EF
Alterations at main roof level to increase size of mansard roof addition to the rear and enlarge the front dormer window, provision of roof-lights, access hatch for maintenance and a condenser unit within acoustic enclosure at main roof level; alterations and additions to fenestration; erection of single-storey rear extension at lower ground floor level with replacement terrace above; extension at second floor level and provision of basement below the house with a rear light-well.