On top of the Schieblock office building in the center of Rotterdam the largest rooftop-farm in Europe is situated: “the DakAkker”. Here fruits, vegetables and herbs are grown and honey bees are kept. The DakAkker functions as a test site to experiment with different ways of green-roofs and farming in the city. The Dakakker was created in April 2012 by Binder Groenprojecten and initiated by ZUS and developed by ZUS in collaboration with the Rotterdams Milieucentrum (Environmental Centre Rotterdam). The DakAkker is one of the projects of the City Initiative The Luchtsingel and exhibition-site during the International Architecture Biennale 2012.