The small room where I wait for the architect Francis Kéré in his Berlin office is filled with models, representations of his work spilling from the shelves onto the table. When Kéré arrives, he takes one look at the setup and decides that it is wrong. We’ll go instead to a nearby restaurant, where he is greeted warmly, but before that he insists on showing me through a space in the process of renovation, just across the courtyard from Kéré Architecture. His office will shortly expand into this space, he explains with breathless, infectious enthusiasm.