I hope that any expansion of London will learn from the planning examples of some of its most desirable areas such as Chelsea, Notting Hill, Belgravia and Mayfair. All are characterised by high density and a generosity of green spaces. They are all pedestrian-friendly with shops, entertainment, restaurants and pubs within easy walking distance.

It takes a lot of effort to make a building look effortless.

Since Stonehenge, architects have always been at the cutting edge of technology. And you cant separate technology from the humanistic and spiritual content of a building.

I'm not a creature of habit. I like to find things from unexpected sources.

I am always surprised by how much little emphasis schools of architecture, and indeed, many architects, place on the process of the mating of a building.

Manhattan, one of the most moneyed spots on the planet, also has one of the greatest concentrations of people in its skyscrapers. Its also, of course, the place where every architect wants to build his tower.

Control is the wrong word. The practice is very much about sharing, and, in any creative practice, some individuals, whether partners or directors, are much closer to certain projects than I could ever be.