Karstadt-Stammhaus, Historic department store building in Wismar, Germany

The Karstadt-Stammhaus is a four-story Art Nouveau building located at the intersection of Krämerstraße and Lübsche Straße, featuring distinct architectural elements from the early 20th century. The structure preserves its original facade with characteristic details of that era, showcasing the craftsmanship of the period's construction.

Rudolph Karstadt opened his first shop, the Tuch-, Manufactur- und Confectionsgeschäft Karstadt, in 1881 at Krämerstraße 2/4, the founding house of the later Karstadt group. In 1899 he bought the buildings at Lübsche Straße 1/3 and Krämerstraße 7 and joined them together. The growing business required a larger store, so the four-storey steel-frame corner building at Lübsche Straße 1 was erected in 1907 to plans by Johannes Busch and opened in 1908.

The ground floor houses the Rudolph Karstadt Museum, where visitors can see original furniture and items from the company's early days. This exhibition reveals how a local shop in Wismar became the foundation for a major German retail business.

The building is located on Rudolph-Karstadt-Platz 1 in the pedestrian zone of central Wismar, near public transportation and the main market square. The location makes it easy to visit when exploring the city center, and there is ample space for walking in the surrounding area.

The store introduced fixed pricing and cash payment policies in 1881, revolutionary concepts that fundamentally changed German retail practices at the time. These innovations made shopping more predictable and fairer for customers compared to the negotiation practices common then.