Star-Lit Mosaic Hammam, London

A compact private hammam finished entirely in iridescent glass mosaic — walls, heated contoured loungers and a faceted vaulted ceiling carried on fibre-optic points of light. The room was built on XPS tile-backer board with a bonded sheet membrane laid over it, so the vapour control sits in a continuous layer across board and joints rather than relying on the boards alone. The seating was shaped by hand before cladding, so the mosaic runs in a continuous curve from backrest into wall without a straight joint anywhere on the profile; the arched feature panel arrived pre-assembled, but almost every sheet around it was cut and adjusted piece by piece on site, including a circular rosette set out in hand-cut segments. Epoxy grout throughout: under constant steam and daily condensation a cementitious joint is not a durable option.