Klockmannhaus, Heritage monument in St. Georg, Hamburg, Germany.

Klockmannhaus is a heritage-listed former office and commercial building on the corner of Kirchenallee, Steintorplatz and Steintorweg in Hamburg-St. Georg, next to the main station. Its eight-storey brick facade rises above the neighbouring buildings. The two street corners facing Steintorplatz are chamfered, each marked by a double row of closely spaced windows. The ground floors are clad in natural stone, and a windowless band above the eighth floor has been used for advertising.

The building started its life in 1870 as the Savoy Hotel, then in 1925 Ernst Klockmann had it restructured using a steel framework built into the older masonry. That renovation changed how the building looked from the outside and shaped the facade that still stands today.

The building takes its name from Ernst Klockmann, a leather merchant who gave it a new face in the 1920s. The dark brick exterior still signals the commercial ambition that shaped this part of Hamburg near the central station.

The building sits a short walk from Hamburg Central Station, so it is easy to reach on foot from the main transit hub. The streets around it tend to be busy throughout the day, so an early morning visit gives the clearest view of the facade.

During World War II, an anti-aircraft position was set up on the roof, turning a commercial building into part of the city's defense network. No trace of this remains visible today, but it adds an unexpected layer to the history of what now looks like an ordinary hostel.