The museum building was designed by the Mannheim architects Lindemann Architekten. It is a rectangular exposed-concrete building with a glass coat covering the whole of it. The night view of the building offers a stark contrast to the day view thanks to a colourful light installation. During the day, sunlight accentuates the façade. At night, the building is lit up from within. The massive structure is covered with light in such a way that the vertical concrete areas are visibly lit up. The most striking architectural element is the elongated staircase visible from the museum square and which provides access to the building. The museum has 1100 square metres of exhibition space over three floors. The exhibition layout is dedicated to Schumacher’s development as an artist and provides insight into his techniques and all the materials he used.