PROTECTED STRUCTURE: The development will consist of the part demolition of rear extension side wall and installation of glazed slider in its place, removal of 2 no. existing velux rooflights and installation of 1 no. flushglaze rooflight in rear extension, part removal of selected internal walls and doors on ground floor, the installation of appropriate insulation between suspended timber floor, the installation of appropriate wall and roof insulation to extension only, other minor internal works and alterations to ground floor.