Demolition of the single storey back addition and rear outbuildings attached to the rear of the main building; erection of side and rear extensions at lower ground, upper ground and first floor level, erection of a rear roof extension to replace the existing dormer window, excavation beneath the main building in connection with the creation of a new basement and the formation of a roof terrace at upper ground floor level to the main building; change of use of the main building from office (Class E) into 2 x two bedroom self-contained flats; erection of a part one storey plus-basement single family dwellinghouse in the rear garden; erection of a new boundary wall with three new entrances to the side elevation; associated landscaping and external alterations.

Demolition of existing single storey garage and erection of a replacement single storey outbuilding in the rear garden with doors and window openings to use as home office; erection of new external steps to replace existing incorporating a link corridor between the main building and the replacement outbuilding, and associated landscaping in the rear garden; installation of new doors to replace the existing door and windows at lower ground floor level to the rear elevation of main dwelling; replacement of existing garage shutter doors with new timber screen entrance gates to side boundary wall and reinstatement of pavement outside of the site following removal of dropped kerb.