The atmosphere of a converted warehouse pervades this new building, a home for two architects and their children. The future-forward, flexible design keeps options open for future habitation - and potentially even a change in typology to retail or hospitality. Light, from full-height windows or filtered through polycarbonate walls, permeates the interior's simple and generous spaces and the robust selection of materials - fine black steel, plywood and concrete - is offset by surprising city outlooks and a 'walled lawn', a secret garden, sunny and private, that is a haven from the inner city.