angles appearance bricks brickwork building building-construction building-site building-work buildings constructed constructing construction construction-site construction-work cream dark development height high home home-units house safety sand second-storey second-story security suburban tiles tiling two-storey two-story units urban wall walls work accommodation architecture cement-mixers elements exterior external framework homes light linear lines men metal-work mixers modern perspectives pipes rubble straight structure style untidy views window-frames windows workers workmen fence hard hat protection sign site warning country site maize ornaments pottery rural thread time gap tranquility angled crane danger greyscale railing rails scaffolding steel-scaffolding tall building construction building work construction sites construction work cranes heights metal work safety mesh steel scaffolding additions alterations ladders corn shoes time gap. build bulldozer construction site constructions gravel heavy industrial machine rocks stone construction machinery construction people crew heavy duty heavy objects HSE lifting machines mobile crane operating people at work safety precaution supervising working