Jonathan Woolf studied architecture at Kingston, and worked with Munkenbeck and Marshall before setting up in practice in 1990. He taught at the AA with Philippe Barthelemy, from 1995 to 2000, where their Intermediate Unit 5 made a number of proposals related to Hampstead Heath in north London and explored them using solid wood models. We met at his new office – a converted pub – and, over a beer from the fridge, discussed his latest completed building, Brick Leaf House. It is a 10,000 square foot double villa built for two brothers and their families on the edge of Hampstead Heath. We began by looking at the sort of model his AA unit would have produced.