Chelsea Barracks Townhouse, London, UK

This 12.8-acre Belgravia estate has been out of public reach for over 150 years. Formerly owned by the British Army, the land was sold to real estate firm Qatari Diar Europe LLP in 2007, and it’s poised to become one of the world’s most prestigious addresses, with the first phase set to reach completion this spring. Once it’s finished, the development will contain apartments, penthouses, mews and townhouses along with restaurants, shops, sports facilities, a 16-seat cinema, business suite and state-of-the-art 137,400-sq-ft spa with 65-ft swimming pool. Residents will be able to relax in five acres of lush sprawling gardens and enjoy the seven garden squares designed by renowned landscape architects Kim Wilkie and Gustafson Porter. The 13 townhouses are the most desirable properties. Covering between 8,000 and 15,000 sq ft, each one will reflect Georgian inspiration in its architectural design, with interiors of chevron oak, dark timber and black Port Laurent stone, all underpinned by fine British craftsmanship. Residents at Chelsea Barracks will have 24-hour porter and concierge service, and access to underground parking.