Combining the privacy and amenity of a grand townhouse with the scale and light of a 60-foot-wide penthouse, it offers more than 14,000 square feet of living space across three interlinked buildings. With its private spa, double garage and staff maisonette, it provides the rarest kind of London home, one designed for complete discretion and world-class entertaining. The property is entered from Chester Square through an impressive reception hall, where a sculptural staircase and private lift s...