angle-iron angled angles background bolted bolts braced bracing building building-construction building-site building-work color coloration colors colour colours connected connecting constructing construction frame frames framework galvanised galvanized house joined light metal metalwork New open preliminary-framework reinforced reinforcements reinforcing ribbed ribs secure shadows solid space spacious steel strength strong sunlight unfinished accommodation architecture box-like boxed bricks brickwork buildings concrete concreting development distinctive elements exterior external gray grey height high home linear lines modern modernistic perspectives plain second-storey second-story squared straight structured style suburban two-storey two-story units urban views wall walls windows work home-units