Sanitary building
Unterbacher See

Sanitary building
Unterbacher See

Sanitary building
made of wood

At the Unterbacher See campsite, a barrier-free sanitary building was built from two wooden modules. In addition to toilet and shower facilities as well as washing and rinsing places, the washhouse offers a bathroom suitable for the disabled as well as a family bathroom. The entire fit-out of the shower and WC rooms has already been carried out at the factory.

Sanitary building Unter­bacher See
at a glance

Barrier-free washhouse
made of wooden modules

The single-storey building is founded on point foundations and made of two wooden modules prefabricated in the factory. Prefabrication in the factory also includes the upright larch facade with three different widths (90,115,140). Accessibility is ensured by a circumferential grating attached to L-stones. The roof overhang covers the entrance area, which leads to the sanitary areas. The barrier-free bathroom and the family bathroom can be reached via two side entrances.
Building project Sanitary building at Unterbacher See, Am Kleinforst 260 / Kleiner Torfbruch 31, 40627 Düsseldorf
Construction Wooden module construction
Completion 2021
Volume of the wooden components 39 m³
Stored CO2 in the construction 29.60 tCO2
Avoided CO2 in the construction 35.52 tCO2
Regrowth speed in german forests 1 minute
Building owner Zweckverband Erholungsgebiet Unterbacher See, Düsseldorf
Architecture Dipl. Ing. Beate Trebse AKNW BDIA, Cas. Creative architektural services, Düsseldorf
Engineering office Ripkens Wiesenkämper, Beratende Ingenieure PartGmbB, D-Essen,
Planning, production and assembly of the wooden modules DERIX-Group

Complete room fitting
in the factory

The timber modules for the construction of the washhouse at Unterbacher See were made of DERIX X-LAM as well as glulam. Approximately 95 % of the modules were prefabricated at the factory. This includes finished WC and shower areas, complete electrical installation including lights, floor construction and flooring, interior doors as well as windows and facade. The modules, which were protected from the weather for transport, were only placed on site. Only the joint area between the modules and the circulation grid were added.


Wooden module construction

Our timber modular construction method opens up a new dimension for fast and sustainable building: we prefabricate entire room cells from timber in the factory, which are then assembled on site. From planning to production to the turnkey building – get to know DERIX modular construction.

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