
On the site of the historic Weimarer Flussbadeanstalt (river bathing house) on the Rummelsburger Spree, the Flussbad Campus is taking shape as an interdisciplinary place for culture, work, gastronomy and health. Following the launch of the Reethaus, the Werft (shipyard) follows as the spatial bracket of the campus, connecting the Bootshaus and the "Platte".


Since 2023, the hospitality collective Slowness has been shaping its flagship: a campus that grows in measured phases and weaves existing and new buildings into a place for collaboration and programme. The planning team includes Arno Brandlhuber with Muck Petzet and Monika Gogl, joined by other acclaimed interior architects.
Reethaus marked the cultural overture in 2023 — a monastic, pared-back chamber for sound and gathering, equipped with 360-degree spatial audio, curated “Open Haus” formats and opportunities for private hire. Its language is calm, material-forward and focused — a deliberate counterpoint to the usual conference typologies.
Next comes the Werft, concentrating the campus’s key functions: a two-storey auditorium for teaching, talks and performance; working lofts and member desks; studios; a gallery bar; library; health & movement; and hotel rooms. Designed by Arno Brandlhuber and Muck Petzet, the building embraces a robust, unvarnished palette of concrete, glass and raw brick. Since late 2019, OOW has led the detailed design (Ausführungsplanung) for the Werft.
As the gastronomic anchor, the Bootshaus is taking shape with an all-day restaurant and a club floor (planned opening 2026/2027). The Platte already offers working lofts and serves as the base for ongoing operations.
Across all of its building blocks, the campus pursues the principle of measured use of resources: few, precisely chosen materials; exposed load-bearing and fit-out structures; flexible, large-format spaces for varied uses. The sum is a clear, durable architecture that puts programme and operation to the fore.