Demolition and development, including basement excavation, behind a retained front facade of 41-45 and 57, 59 and 63 Pimlico Road, including: realignment of the rear elevation; installation of new roof structures, and the creation of external terraces; demolition of 61 Pimlico Road (fronting onto Pimlico Road) and reconfiguration of the Yard, retaining the existing piers and roof structure with new mezzanine level; replacement of shopfronts to 41, 43, 45, 57, 59, 61 and 63 Pimlico Road; replacement of the glazed roof lantern to Newson's Yard; creation of roof level plant enclosure above part of the builders' yard; creation of 5 x Class A1 retail units at basement, ground and mezzanine level; 2 x flexible A1/A3/B1/D2 units at ground and mezzanine level; with 9 x Class C3 residential dwellings at the first, second and third floor levels (with ground floor access), including mansard extensions to 41-43 Pimlico Road and 63 Pimlico Road; together with associated external alterations.