Bathtubs are located in the bedroom rather than in the bathroom, and the grey slate tiling gives the place an urban vibe.

BBC: The sharpest rooms in Shanghai

Safety hosts - doormen - sport grey suits and slate grey polar necks.

BBC: Makeover for the men in black

Slate-grey armchairs and blonde-wood cabinets are arranged around the half-empty showroom, picked out by spotlights, and with plaques detailing the genesis of each design.

BBC: Stockholm��s enduring style