Impulsprojekt Stuttgart Wagenhallen

In Stuttgart, the impulse project at Wagenhallen in the Nordbahnhof district has been in operation since summer 2022. In the immediate vicinity of temporary worker accommodation for the Stuttgart 21 project, greywater from showers and washbasins is treated in a soil filter and, together with rainwater, used to irrigate façade greening on the residential containers.

The worker accommodation is particularly suitable because the installation is easily accessible, meaning that only limited, and therefore less costly, structural interventions and excavation work are required. This makes it an ideal source of greywater for the project.

The impulse project is intended to demonstrate blue-green solutions as a tangible option for the planned Rosenstein district (i.e. the Stuttgart 21 development areas). Innovative storage and treatment options, along with green systems integrated into the design of the facility, are intended to show that measures for integrated blue-green planning can also be successfully implemented in dense inner-city neighborhoods with very limited space.

The project as a whole was developed through a transdisciplinary process in order to align water availability, water demand, and usage requirements. Implementation began in November 2019, and the impulse project went into operation in July 2020.

Public guided tours are held on site, provided that the coronavirus regulations permit it.

Concept and coordination: TUM

Design and implementation planning: Daniel Schönle Architektur und Stadtplanung

Research container: CARU Containers GmbH

Soil filter and greywater treatment: TU Kaiserslautern, Büro Dr. Bruch

Storage modelling and rainwater concept: Universität Stuttgart

Façade greening: HELIX Pflanzen GmbH

Irrigation control: Dennis Balasus

Cooperation partners: Stadtacker Wagenhallen e.V., Kunstverein Wagenhalle e.V., ARGE Tunnel Cannstatt S21