25 Cumberland Street London SW1V 4LS
Excavation of existing vault to front to increase head height, replacement of existing metal staircase to basement lightwell, relocation of front entrance door, construction of new infill extension at rear basement and ground floor level, new first floor extension with associated roof terrace to second floor, demolition and reconstruction of existing roof with 3 rooflights, construction of new dormer to provide access to new rear roof terrace, external refurbishment to include replacement windows, repointing to rear brickwork and redecoration of front elevation.