The owners of this house added a basement to their existing home with the part of basement below the garden housing a swimming pool. Being avid entertainers, they wanted a pool as well as a party place within that area and a moving floor was the perfect solution. The pool is 8m X 4m with a similar surround area, so when the floor is up, there is a 64sqm clear space for entertaining. Next to the pool below the main house is a large living space connected to the pool by sliding patio doors, and with those doors open it is over 100sqm, substantial by any standards for Central London. A steam room is installed next to the pool along with a large shower and change room.