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Germany: Roof Water-Farm in Berlin

The German research project Roof Water-Farm (2013-2017) explores ways of combining building-integrated wastewater treatment with urban food production

From their website:

Roof Water-Farm demonstrates paths towards innovative city water management and urban food production. Potentials and risks of redesigning across sectors of infrastructure are explored and communicated.

The research association investigates opportunities for building-integrated water treatment systems to irrigate and fertilize roof-top greenhouses. Technologies for water treatment and aquaponics (plant and fish cultivation) will be examined at a demonstration and test site in Berlin-Kreuzberg. The research focuses on a hygienically safe usage of rainwater, greywater and blackwater as both a strategy for city water management and a potential for urban food production.

The transferability of the Roof Water-Farm concepts into the urban realm is examined based on preliminary findings. Structural variants of greenhouse plant and fish production in greenhouses will be projected for the scale of a building unit, and upscaled for urban spaces at large.

Over the course of the project, researchers develop process-related communication and training tools for building-integrated water treatments and urban food production.

Link here:


The MOOC present results from four years of ROOF WATER-FARM research and offers participation of various disciplins. It starts on 28 November 2017 and is open to all interested parties. The course is free of charge.

Registration is now possible.