create a realistic architectural visualisation based exactly on this side elevation drawing important spatial constraints the rear extension projects 1 46 metres beyond the existing rear wall single storey extension only roof ridge is lower than the main house ridge four flush rooflights integrated into the roof slope rooflights must not protrude more than 150mm the first floor wall remains completely unchanged and flush maintain all window positions exactly as drawn architectural style traditional uk london stock brick subtle red brick banding and lintels dark grey slate roof tiles black fascia and rainwater goods realistic mortar colour and brick variation overcast british daylight maintain correct wall thickness and projection depth do not redesign the house
