need to know

What? The main en suite in a four-bedroom apartment. Where? Overlooking a leafy square in Kensington, London. Who designed it? Sarah Ellison, creative director, Frank & Faber. Main contractor, Builders By Design.

Key features? Barcelona bath, £3,840, Victoria & Albert Baths. Bespoke vanity and mirror cabinet, Frank & Faber; made by Builders By Design. Calacatta Viola polished marble tiles, £83.93sq m, Mandarin Stone. Design Two TCD35613 porcelain tiles (in shower), £40.80sq m, Grestec. Wall-mounted basin taps, £870; wall-mounted bath taps, £900; bath hand spray, £1,073; thermostatic shower valve, £2,618; shower rose with arm, £1,154; hand shower, £696, all Mackintosh range in unlacquered brass, Lefroy Brooks. Pillar wall lights, from £495 each, Original BTC