A compact three-storey home in Putney, south-west London, is listed for £550,000. The property is described as one of London’s narrowest homes, with its width compared to that of a Tube carriage. The current owner, Paul Crowther, commissions design changes to make the most of the limited space. According to reports, he tells the designer to treat the home like a boat and prioritise maximum storage, reflecting an emphasis on efficient use of the narrow layout rather than expanding room sizes. The listing highlights the property’s constrained footprint and the way it is organised across multiple floors, aiming to provide usable living space despite the narrow dimensions. The reports focus primarily on the home’s size and design approach, rather than any broader neighbourhood or market context.