Zoo Basel is undergoing the most expensive expansion in its history. These include the indoor and outdoor renovation of the monkeyhouse (2011-2012 / Fr. 30 millions), the zoo restaurant renovation/expansion (2015 / Fr. 16 millions), a new elephant house and outdoor exhibit (2016 / Fr. 28 millions) and a new large-scale aquarium (2019 / Fr. 60-80 millions).