Erthaler Hof

The Erthaler Hof is a noble residence in Mainz, shaped by French classicism and built for Philipp Christoph von und zu Erthal. Erthal completed the building in the year 1739. Its restrained façade joins paired multi-storey pavilions through a lower central section, creating a modified three-risalit composition. A triangular gable crowns the central front façade. Erthal drew on studies in France and training with court architect Germain Boffrand when designing the residence. The Erthal and Bettendorff coats of arms sit beneath a baron's crown. Original stucco ceilings and wall panelling remain especially visible in the hall and staircase, where decoration moves from bandwork towards rocaille. Fireproof ceilings helped protect the interior during wartime bombing. Later, the residence served as a prefecture, provincial directorate, district government, and administrative seat for Mainz-Bingen. Since 1998, it has housed Rhineland-Palatinate's General Directorate for Cultural Heritage. Restoration returned the façades to their original colour scheme and established a model for conservation-sensitive work. The residence stands beside Schillerplatz's baroque noble houses. Its survival through the Second World War preserves a layered record of Mainz's architecture and administration.