Administrative Building Canton of Solothurn

HILDEBRAND Verwaltungsgebaeude Roetihof CAFE

HILDEBRAND Verwaltungsgebaeude Roetihof Schwarzplan

HILDEBRAND Verwaltungsgebaeude Roetihof Situationsplan

HILDEBRAND Verwaltungsgebaeude Roetihof Erschliessungsdiagramm

HILDEBRAND Verwaltungsgebaeude Roetihof Dutch

HILDEBRAND Verwaltungsgebaeude Roetihof EG

HILDEBRAND Verwaltungsgebaeude Roetihof Stuetzen EG

HILDEBRAND Verwaltungsgebaeude Roetihof Diagramme 02

HILDEBRAND Verwaltungsgebaeude Roetihof Strukturkonzept

The new building presents itself as a confident and contemporary extension of the existing Rötihof along Werkhofstrasse. Its placement marks the termination of the city’s green belt while creating a strong connection between the eastern district and the historic old town. The articulated volume and striking façade give the structure a strong presence within the urban context. Two cross-shaped passages at ground level ensure integration into the surrounding urban fabric. An east–west axis links the St. Joseph quarter with the old town, while the north–south-oriented central mall connects Stadthausplatz with the Baseltor intersection. This creates a permeable ground floor with a distinctly urban quality. The structural system consists of a rigid frame made of laminated beech timber, with reinforced corner joints expressed as distinctive cross-shaped columns. A span of over eight meters allows for flexible interior layouts and gives the spaces a clear structural rhythm. The office floors are organized in an open grid, allowing for a wide range of spatial configurations—from traditional offices to open-plan working environments. At ground level, the idea of a “service mall” is brought to life: a central atrium, conceived as a light-filled courtyard and accessible from four sides, forms the functional and social heart of the building.