Kurfürstenhaus, Renaissance office building in Nikolaiviertel, Germany.

The Kurfürstenhaus at Spreeufer 5 is a four-storey, eight-axis building with a red sandstone facade facing the Spree. A broad central risalit and an asymmetrical polygonal stair oriel to its north break up the front, while a decorative gable crowned with a bronze figure and relief medallions of all Brandenburg electors ornament the roofline. The ground floor has round-arched windows of two widths and a large gateway leading to the vaulted courtyard passage.

The building was constructed between 1895 and 1897 by architect Carl Gause, replacing an older structure that served as the electoral mint from 1565 to 1586. This transformation marked the shift from early modern to 19th-century Berlin.

The name Kurfürstenhaus dates from 1868, when Carl Schwatlo's renovation added portrait medallions of all Brandenburg electors to the facade. The earlier Poststraße 4 house, where Elector Johann Sigismund died in 1619, was the original bearer of the name; a bronze memorial plaque there hung until 1916 and is now lost.

The building stands at Spreeufer 5, with its main red sandstone facade facing the Spree; the arched gateway in the ground floor leads into the courtyard, the Kurfürstenhöfe. The Humboldt-Forum service point is among the current tenants, and the Nikolaiviertel alleys around it are pedestrian-friendly.

The building survived World War II without major damage and preserves its original late 19th-century construction. This makes it a rare survivor of wartime destruction in the now-reconstructed Nikolai Quarter.