Hohenhof is the villa Karl Ernst Osthaus commissioned in 1906 for himself and his family — designed inside and out by Henry van de Velde, the founder of the Werkbund and one of the key figures of European Jugendstil. The building was meant to be a manifesto: every fitting, light, doorknob, panel, and piece of furniture was designed by van de Velde, and the whole interior survives largely intact.
The result is one of the most complete Jugendstil interiors anywhere in Europe. Each room is finished in a single colour palette and material scheme, the furniture is built in, and the stairwell murals were painted by Ferdinand Hodler. Hohenhof is part of the Osthaus Museum operation and is open to visitors on weekend afternoons and by appointment. Get there by car or taxi — the location, in a residential area east of the city, is not walkable from the centre.