Bayreuth House it was not razed. Inside the building, which is once again used by a Jewish community as a synagogue, a plaque next to the Torah Shrine recalls the persecution and murder of Jews in the Shoah, which took the lives of at least 145 Jews in Bayreuth. During the Second World War, a subcamp of the Flossenbürg concentration camp was based in the town, in which prisoners had to participate in physical experiments for the V-2. Wieland Wagner, the grandson of the composer, Richard Wagner, was the deputy civilian director there in late 1944 and early April 1945 .
Bayreuth Festival banned her from administration of the Bayreuth Festival and its assets, which fell eventually to her two sons, Wolfgang and Wieland. During American occupation of the region after World War II, the theatre was used for army recreation and religious services for American soldiers. Only popular concerts and mixed entertainment were allowed: comedy, dancing, acrobatics, and then only "Die Fledermaus" was staged. When the Festival House was handed over to the city of Bayreuth in 1946, it was used for concerts of the Bayreuth Symphony Orchestra and the performances of such operas as "Fidelio", "Tiefland", "Madama Butterfly" and "La traviata".