Plans for a huge three-storey basement extension that will treble the size of a Knightsbridge house owned by David Graham have sparked an angry campaign from neighbours, including novelist Edna O'Brien. So what is he planning to build?
- By digging down 50 feet, a four-storey basement will triple the mansion's size
- There'll be a car lift
- And a 45-foot swimming pool which comes with a hot tub.
- There'll be accommodation for staff
- And what subterranean residential complex would be complete without its own ballroom?