The design that cepezed made in cooperation with Lingotto and Onefarm for the three water treatment silos on the Amsterdam Zeeburgereiland is on show from July 6 until September 2 during an exhibition on the project in architecture center Arcam. The concrete cilinders have been out of function since 2006; in the spring of 2017, the Amsterdam municipality started a contest for the redevelopment with a programme that should be 'a creative mix of special functions, including cultural, social, recreational, sporting or educational nature'. After the pre-selection, the consortium of Lingotto, OneFarm and cepezed produced a plan for a circular and future-proof redevelopment that anchors the silos within the new residential area surrounding it. The core of the plan is a vertical city garden. The concept is a response to the worldwide growing demand for good, healthy and sustainably produced food in the densified urban environment. The vertical farm, a technological development of OneFarm, is literally the stacking of vegetables and herbs. Vertical farming takes place in a closed, strictly conditioned environment. The closed volumes of the original silo's provide the perfect conditions for this. The plinth contains functions such as work and retail spaces, meeting rooms and a coffee and lunch bar. The knowledge and information centre in the plinth of the middle silo offers an insight into the new world of vertical farming. The crowning of the silos consists of three round building volumes that enhance the landmark function of the complex and offer unprecedented views of Amsterdam and the surrounding area. The raised ground level of the middle tower contains a wind-free terrace with trees and a small catering pavilion. The original, renovated aerial bridges give access to the restaurant, an event space and health club in one tower or the Green Lab and Innovation Hub in the other. Different sustainability measures resulted in a CO2-neutral design with a BREEAM Excellent score and a low epc of 0.15 and thus contribute strongly to the circular ambitions of the Amsterdam municipality. The ground level around the silos is included in the development. For more information on the exhibition, see the website of Arcam.