For this project in Marylebone, London, we reconfigured an entire slice of an urban block to increase its value as a workspace and a home. In a set piece typical of London’s grander inner boroughs, the principal property on Nottingham Place is a large, late-nineteenth-century townhouse, backing onto a mews building for stabling and servants that faces onto a service road, Bingham Place, to the rear. The mews had been developed incrementally, leaving the space between a confusion of roof terraces, lightwells and outbuildings.