Alte Werkshalle, Industrial heritage building in Geisenheim, Germany

Alte Werkshalle is a former printing-machine factory hall in Geisenheim, built from 1906 in a steel-skeleton construction. Its northern section faces the railway with a main facade decorated with Jugendstil ornaments; the southern section and two flanking stair towers followed by 1913. Inside, a high central nave with large windows is flanked by two lower side aisles, and the hall now houses a plastics-processing company.

The facility was constructed in 1906 and manufactured printing machines that were distributed across the globe. This work established the Rhein-Main region as a major center for mechanical engineering and industrial production.

The building reflects early 1900s design, mixing functional steel construction with decorative flourishes typical of the era. Its large windows and open interior were designed to provide workers with natural light and ample space for manufacturing operations.

The hall stands on the former Maschinenfabrik Johannisberg works site in Geisenheim, next to the railway line and the road. Since 2012 a plastics-processing company has owned the 21,000 m² site including the listed hall and produces there again, so the interior is a working factory and not open to visitors. The building can be viewed from the public street.

During World War II, the site served as a subcamp where roughly 200 female prisoners were forced to produce components for anti-aircraft guns. This dark chapter remains an important part of the location's history and reflects the complexities of industrial sites during wartime.