Katerina Dionysopoulou is co-founder and director of Bureau de Change, a London-based practice which she founded with Billy Mavropoulos. The practice works across a range of typologies and scales from product and furniture design to major refurbishment and new-builds, combining pragmatism and formality with playfulness, innovation and beauty in every project. Katerina graduated from the Bartlett School of Architecture and trained at Foster+Partners before joining Heatherwick Studio where she led projects such as the UK pavilion in Shanghai and the Olympic Cauldron, prior to setting up her own practice. Recent projects include the Interlock, a mixed-use development in central London with an intricate brick façade. She combines teaching with practice, running an undergraduate unit at the Bartlett School of Architecture, UCL.