Alster-Schwimmhalle

The Alsterschwimmhalle is a large aquatics centre in Hamburg’s Hohenfelde district. Built in 1973, it has a distinctive roof that resembles a butterfly in flight. Three architects—Horst Niessen, Rolf Störmer and Walter Neuhäusser—designed the building. The roof itself was engineered by Jörg Schlaich of Leonhardt & Andrä. Its shell is only 8 cm thick yet spans 102 m by 52 m. The roof is protected as a historic monument and praised as a fine example of Hamburg’s post-war architecture. It earned the nickname “Schwimmoper” for its sweeping, airy form. The structure has twice been renovated, once in 2007 and again in the early 2020s. It was shortlisted for a sustainable renovation award in 2024. Inside, the hall houses a competition pool and spectator seating. Daylight filters through the roof’s curved openings. The space feels light and open, matching the roof’s graceful lines. Visitors notice the contrast between the delicate roof and the robust concrete walls. The building remains a landmark of modern engineering and design.