The Schepenhuis is a medieval building located in the city of Aalst, Belgium. It was built in the early 13th century as a courthouse, and later served as a prison and a residence for the city's administrators. Today, the building houses the Aalst City Museum, which showcases the history and culture of the city.

The Schepenhuis is considered to be one of the finest examples of medieval architecture in Belgium. It features a large main hall with a vaulted ceiling, as well as smaller rooms on the upper floors that were used as living quarters. The building is constructed of sandstone and brick, with intricate carvings and decorations on the exterior.

The Aalst City Museum features a range of exhibits on the history of the city, including displays on the local textile industry, art and culture, and the impact of World War II. Visitors can also explore the building itself, including the main hall and the original prison cells, which are still intact.

In addition to its historical and cultural significance, the Schepenhuis is also an important venue for cultural events in Aalst. Concerts, lectures, and other performances are regularly held in the main hall, which can accommodate up to 200 people.