The company, based in Swindon in the UK, is supplying doors for a development of exclusive duplex penthouses at Cassio Metro in Watford.

Linden Homes specified the dark American walnut veneered flush doors with stainless steel locks and fittings, which Vicaima said has become part of design trend in recent months for upmarket contemporary homes.

“Far from being dark and sombre, when combined with cream carpet and walls they provide a beautiful juxtaposition,” said designer Louise Tegerdine.