The refurbishment of this Grade II listed house in the St John’s Wood Conservation Area required the sensitive renovation and reinstatement of all historical architectural interior detailing whilst updating the house for contemporary living requirements. This included the installation of air conditioning, whole-house ventilation systems and modern kitchens and bathrooms. It was agreed that the gym and media room should not be incorporated within the historic fabric of the existing house. Therefore, a 1000 square foot subterranean excavation under the rear garden has been completed to incorporate these functions.