Removal of the existing rear additions and the erection of replacement rear extensions at lower ground level with terrace above in conjunction with the lowering of the lower ground floor floor level and at ground floor level with terrace above; erection of an extended outrigger at second floor level; removal of a rooflight from the front roof slope and provision of two rooflights to the rear roof slope; erection of a single storey extension to the garage; provision of slimline double glazed windows; fenestration alterations to the front and rear elevations; provision of railings to a reconfigured front lightwell and alterations to the front boundary wall and railings to include the provision of a sliding vehicular gates and a pedestrian gate.