The Aachen master builder Couven erected the building in 1783 for the cloth manufacturer M.P.W. Troistorff, following the example of the town houses of the nobility. In keeping with the spirit of the times, the half-timbered house was plastered and decorated with ornamentation. Rich carvings on the doors with supraports and wrought ironwork on the staircase and balcony railings bear witness to the pomp and wealth of the residents.
Probably the smallest art museum in the world is located near the border triangle of Belgium, Germany and Luxembourg. The museum shows the works of artists from the surrounding countries in changing exhibitions in the former school bus waiting hall in Welchenhausen.
The castle has been destroyed many times, most recently in the Palatinate War of Succession in 1689 by French troops of Louis XIV, like most Eifel castles. Today only a ring wall and a basement tower with shooting ranges are preserved from the former, probably over 1000 years old Burganlage.