Retrospective planning application for the substantial remodel, extension and partial demolition of a single unit dwellinghouse. The front façade at ground and first floor including projecting bays, connected flank party walls and the majority of the second floor intermediate floor structure are all to be retained as existing. Remodel and extensions include the addition of a new basement with an external staircase from basement to ground floor level at the rear of the property, the erection of a part one, part two, part three storey extension, and associated works incorporating a ridge height increase of the property by 300mm; and the replacement of the existing single glazed timber sliding sash windows with double glazed timber sliding sash windows.