Designed by its architect owner, this exceptional three-bedroom apartment occupies the top three floors of a handsome terrace on Belsize Crescent. It has soaring ceilings and makes masterful use of a considered material palette of steel, timber and glass. A series of striking suspended zigzag staircases connects the different levels, and a private roof terrace captures panoramic views of the city skyline. For travel across the city, Belsize Park (Northern line) and Swiss Cottage (Jubilee line) stations can be reached in 15 minutes, with Hampstead Overground only slightly further afield.