Farm Street

Working with Spanish interior designers, this magnificent four bedroomed house in one of Mayfair's best streets benefits from a double-height basement with swimming pool and gymnasium. Situated over seven floors, the property provides a perfect backdrop for entertaining, including an eight person lift that accesses all floors. The use of special slim piles and space saving NASA-style insulation throughout maximises the available floor space in this expensive part of London. Yours for £30m.