The castle of Sint Gerlach has not been a mansion with castle allure for very long. It was only converted into a castle/mansion in the nineteenth century. As often happened after the French rule and also here after the dissolution of the religious origin.
The domain and the buildings started as a double monastery (men and women) and soon after a foundation (only women) of the Norbertines. It dates from the twelfth century.
There is, among other things, a main building, a coach house, a manor farm and a former leasehold farm, also known as Hoeve Broers. The original monastery and the church with treasury and sanctuary came about with the canonization of the hermit Gerlachus.
The entire complex is part of the Geul & Maas estate and the current luxury hotel with wellness/spa, conference rooms and restaurant, surrounded by a famous sculpture garden (Kunst in Valkenburg) and with the Ingendael nature reserve as a rear neighbor, came after the takeover by hotelier Camille Oostwegel, who was born in Houthem.