The development will consist of: - essential repair works to the existing chimneys including new flashings and repair and repointing of brickwork, - removal of non-original ceilings and partitions at first and second floor levels, - replacement of non-original windows to the rear elevation, - new timber framed windows and door to front elevation at lower ground floor level, - alteration of layout at lower and upper ground floor levels, including removal of sections of original and non-original floors, walls and ceilings, - modification of existing openings to the rear elevation at lower ground floor level, - replacement of non-original windows & balcony with new timber-clad bay window and balcony to rear return, - new louvered screen to the boundary wall to No. 6 Crosthwaite Park East, - associated modifications to front and rear gardens, - associated conservation works, site works and ancillary works