 Located in the shadow of the towering wall that surrounded the then-disused Tobacco Dock, and alongside the cobbles of Pennington Street, the nondescript 1950's building was very much in an East-End setting.Fronting onto the short stretch of road called Artichoke Hill, road signs were simply covered with those reading Sun Hill when exterior filming was taking place.The use of real buildings instead of traditional sets within TV studios was very unusual at that time, with Channel Four's "Brookside" being one of the few others then to do so.