New York City’s Flatiron Building is being converted from commercial space into luxury homes, marking a major new phase for one of Manhattan’s best-known landmarks. The 1902 triangular Beaux-Arts building will open to residents this autumn after years behind scaffolding, with developers betting that its historic character and central location justify exceptionally high prices.

The development will contain 36 apartments, 14 of which are already under contract, alongside a lobby, pool and games room. Prices range from about $10.95m for a three-bedroom flat to $58.5m for a top-floor five-bedroom home with a sauna, dressing rooms and a 72ft great room; interiors expose parts of the building’s once cutting-edge steel frame.