Green Building Supermarkt in Wiesbaden-Erbenheim, Ecological supermarket in Wiesbaden-Erbenheim, Germany.

Green Building Supermarkt is a REWE pilot supermarket in Wiesbaden-Erbenheim, opened on 27 May 2021. Its hall has an inverted-pyramidal timber structure of 42 pine and larch columns on an 8-by-8-metre grid, with glazed east and west sides and a glass roof section over the sales floor. Two solid-built wings house delivery, storage and a mezzanine with fish tanks.

The supermarket opened on 27 May 2021 as the pilot of REWE's "Green Farming" concept, into which the group invested around 10 million euros for the 1,500 m² sales floor. It followed the "REWE Green Building" line, of which more than 200 stores were built between 2009 and 2021. The Wiesbaden site had earlier belonged to the Dyckerhoff & Widmann cement works, which shaped the planners' decision to place two solid masonry wings north and south of the hall.

The rooftop greenhouse grows basil in pots made of recycled plastic, fertilised and watered with wastewater from the fish tanks below. The aquaponic farm is designed to yield 800,000 basil plants and 10,000 kg of fish per year, supplying markets in the region without long delivery routes.

The market hall has an 8-by-8-metre column grid, so the sales floor is divided into bays rather than left open. A pickup station for pre-ordered goods sits in the northern solid block, with short-term parking spaces on the open area in front of it. A viewing room on the upper floor looks into the basil greenhouse.

The building collects rainwater for sanitation and uses climate-intelligent heating and cooling systems for energy efficiency. The entire operation runs entirely on renewable electricity.