[2] Upon returning to Hanover, he joined the Hannoverscher Künstlerverein [de][2] The following year, he took over the family business.

His best known works include the design of the Aachen Cathedral and murals for the Altes Rathaus [de] in Göttingen as well as Malbork Castle.

He also created designs for mosaics, such as the ones depicting members of the Hohenzollern family in the Kaiser Wilhelm Memorial Church.

Until 1911, his workshop was busy with orders for large mosaics, most of which were constructed by Puhl & Wagner, a Berlin-based company that also produced stained glass.

His studio continued operating for a time after his death, but the loss of his younger employees in World War I led to its closure.