In London’s denser neighbourhoods, particularly those boroughs to the north and west of the city, the opportunities for wholesale transformation on a constrained site are limited. Our expertise in transforming existing buildings in such locations might involve digging down to create new basement levels, building up to make the most of existing roof space, or extending out to enlarge the footprint. Whatever the strategy, we value dialogue throughout the process to ensure the visual impact of our work is positive and the environmental impact minimal.