Of course there is a lot of fluidity now between art, architecture and fashion - a lot more cross-pollination in the disciplines, but this isn't about competition, it's about collaboration and what these practices and processes can contribute to one another.

Two years ago I focused on one apartment to see how many variations you can come up with in a given space with the same parameters. I would work on this repeatedly for days and you see that there is maybe seven hundred options for one space. This exercise gives you an idea of the degree at which you can interpret the organization of space, it is not infinite but it's very large.

The goal posts might shift, but you should have a goal.

I'm trying to discover - invent, I suppose - an architecture, and forms of urban planning, that do something of the same thing in a contemporary way. I started out trying to create buildings that would sparkle like isolated jewels; now I want them to connect, to form a new kind of landscape, to flow together with contemporary cities and the lives of their peoples.

In terms of form, all the projects interest me equally, although there are obviously large differences according to the scale and process of each project.

I love driving around east London - it's always full of surprises. Actually, I don't drive myself - I like to be driven.

I can't focus when there's too many things around. Whenever I used to go to the office, I used to always say, 'Tidy up.'