The one thing that links a £10m London penthouse with a £10 a week London bedsit are interior doors. While the former may have gold handles, it's highly likely that both properties will have interior doors that are white in colour.
The boutique hotel has long understood the bold effects of a wenge door; usually coupled with swathes of Malmaison style velvet in ghastly shades of plum. Satin black interior doors however, with chrome hardware and white frames dial things down; adding a smart degree of separation between the Mancave and those oh-so common penthouses.