co+labo, one of the Keio Architecture laboratories, is an international, interdisciplinary research and design laboratory for urban architecture. co+labo, conceptualised by Darko and Vuk Radović in 2008, was founded and it operated as co+labo radović at Keio University under the leadership of Darko Radović (2009-2021), building upon the groundworks of the founding Kuma Kengo laboratory (2002-2008). Since 2022 co+labo is led by Sano Satoshi as co+labo Urban Architecture.