With a strong commitment to Stuttgart as its location and a novelty in construction technology, Gustav Epple Bauunternehmung GmbH realised its new three-storey headquarters with a monolithic construction of the outer wall using insulating concrete, and thus completely avoided the use of artificially produced insulating materials. The general contractor was founded in 1909 in Stuttgart-Degerloch as a small carpentry firm and is meanwhile represented throughout Germany. The company sets high standards for ambitious, creative and ecological building with the philosophy “Anders.Bauen” which means to build differently. Corresponding to the shape of the premises, the floor plan was designed as a slightly modified triangle. The puristic design with exposed concrete elements, wooden surfaces and a self-supporting steel spiral staircase dominates the interior of the building on approx. 4,300 sqm.
The working levels, created as an open-space concept, are arranged around the light-flooded atrium and are interconnected by a central spiral staircase made of steel. Far beyond its function as a connecting element, it fascinates with strong sculptural dynamics and corresponds to the open, clear architecture of the building. Rounded and constructed according to the triangular ceiling openings, the steel spiral staircase is a striking eye-catcher for both employees and visitors and, as a steel object, contrasts with the interior design concept of exposed concrete and wood panelling.