accommodation angles architecture box-like boxed bricks brickwork building building-construction building-site building-work buildings concrete concreting construction development distinctive elements exterior external gray grey height high home house light 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 architectural balance cabin cables colors colours construction-site construction-work crane danger foliage metal-work pipes protection railing rails roof roofs rooves safety scaffolding security sky steel-scaffolding steelwork tall trees work-safe workmen home-units