Yes, a coal chute conversion really is a thing. According to Architect Daniel Rowland, damp basement spaces historically used to store fuel for great London houses can now be transformed into a double bedroom with ensuite, or just about any other living space your London property requires.
If you're looking at period property for sale in London where the original layout has been divided into flats or maisonettes, take a moment to visualise how space could be maximised by a reconfiguration.
He also, rather miraculously, managed to eke a double-bedroom and bathroom out of the underground space that once served as the Georgian building’s coal chute. This is something he now does often for London clients. He says a chute conversion costs around £50,000 but can add up to quadruple that in value. “Because of their subterranean nature, coal chutes are traditionally very damp and you probably wouldn’t want to sleep in one,” explains Rowland. “But because of new technology you can now waterproof them and make them really cosy We got a 4.5m by 3m double bedroom with ensuite out of ours. When I bought the property I couldn’t enter into that space, the wall had been blocked off.”.