Kjellander Sjöberg is a Stockholm-based architecture firm established in 1998 that has grown into a medium-sized international practice. The office operates from three locations: Stockholm, Malmö, and London, with a leadership team comprised of four partners: Ola Kjellander, Stefan Sjöberg, Mi Inkinen, and Lena Viterstedt.
The firm approaches projects through five core principles: Life, Society, Fabric, Form, and Environment. Rather than pursuing generic solutions, Kjellander Sjöberg tackles urban design challenges with particular attention to transformation and adaptive reuse. The practice has demonstrated this philosophy through projects like the conversion of Gjuteriet in Malmö, where industrial ruins were repurposed into a climate-conscious complex that now houses the food company Oatly. The firm also won the Swedish division of the Nordic Built Cities Challenge in 2016 for their vision to transform Sege Park in Malmö.
Recent work includes participation in competitions such as the Trollhättan 6 district development on Universitetsholmen in Malmö, undertaken as part of Team Superlokal alongside Förstberg Ling. The practice is simultaneously advancing Branten, a residential project on Stockholm's Västra Kungsholmen that began in the planning stage in 2013 and is now moving toward realization.
The firm maintains its own studio in a former tobacco factory on Södermalm in Stockholm, a space intentionally designed to reflect its design philosophy. Kjellander Sjöberg has earned recognition for its influence in contemporary architecture and participation in urban design discourse, particularly regarding sustainable solutions and climate adaptation strategies.