51 architecture's award-winning urban interventions, private houses, community spaces and public exhibitions at home and abroad are distinguished by the efficiency and durability of their workings and the calm beauty of their forms and finishes. Our technical , ethical and aesthetic solutions maximise a site's natural heritage and social environment to create enduring buildings and landscapes. "We work with what's already there: structures, materials, human activity, the weather. This is the most basic principle of responsible 21st century design and the source of much of our creativity." Catherine du Toit and Peter Thomas