Erection of a single storey rear extension and erection of a single storey extension to the side of the main building at lower ground floor level following the demolition of the existing garage and part of the single storey back addition; installation of balustrade to existing French doors in rear elevation at upper ground floor level; installation of new steps in front driveway area; amendments to rear landscaping and steps in the rear garden; alterations to the front gates and railings to provide a larger vehicular access; lowering of lower ground floor level; and associated internal and external alterations.