Cortenbach Castle (Dutch Kasteel Cortenbach) is one of the four castles or palaces of Voerendaal, along with Haeren, Puth and Rivieren. The moated castle is located northeast of the city and is now privately owned. It is therefore not open to the public.
The original medieval castle, on whose remains the current castle was built, dates back to the 14th century. The only remains of the castle are two round towers, the corner towers of the current castle. The current castle was probably completed as a villa around 1713 by Leonhard Joseph von Lamberts zu Cortenbach, the son of the Aachen merchant Hermann Lamberts, who died in 1700. He had acquired the Cortenbach estate in 1682 and began demolishing the medieval buildings in order to build a contemporary country estate. The current castle, which has a striking entrance gate crowned by an onion-shaped tower, has been classified as a national monument (Rijksmonument) of the Netherlands since 2005.
The castle housed an exclusive hotel and restaurant from 1939. Today it houses the headquarters of a company in the field of cleaning, personnel and facility services.