Erection of a single storey pool house to rear, construction of a raised roof with 5no. rooflights, 3no. dormer windows with Juliette balconies to southern building, 11 no. flats to be reduced to 3no. flats and 1no. holiday let, raised decking areas, electronic gates, 1.8m high wall to south elevation, retaining wall to front elevation, creation of an additional vehicular access with associated parking, alterations to doors and windows