I can’t design without drawing. I simply have to see the things I think up on paper as well, and the only way to do this is by drawing. The problem with computers is that very often they lie. They often show a condition that seems ready when in fact it’s far from it. In contrast, as it is spinning round in your head, as you try to depict the different views, a drawing very clearly shows where you are in the planning process.

For me, it was like entering a new realm when, after university, I began to make friends with arches. For seven years I had just drawn straight lines and I had a weird fear of arches, so I decided that instead of fear I would build curves into my repertoire.