create a realistic architectural visualisation of this rear extension important spatial instruction the new rear extension projects 1 46 metres beyond the existing rear wall the extension forms a single storey volume only the roof ridge is lower than the main house ridge the extension sits fully beneath the first floor brickwork the first floor wall remains flush and unchanged architectural style yellow london stock brick red brick window arches traditional sash windows above dark grey slate roof tiles black aluminium bi fold doors black fascia and rainwater goods overcast uk daylight maintain realistic brick texture mortar colour and accurate proportions do not redesign the house
