Burg Schallmauer, Baroque castle in Berrenrath, Germany.

Burg Schallmauer is a plain Baroque manor house built in 1714 on the northern edge of Berrenrath. It is a three-storey rendered building, probably designed by the Bonn court architect of the time, and it survived the demolition of the neighbouring hamlet of Aldenrath.

Friedrich von Sachsen-Lauenburg, canon of Cologne and Bremen, built a small country house on this site in the mid-16th century for the Cologne cathedral canons. Dutch troops destroyed it in 1673 during the Dutch War against Louis XIV. The ruin passed to canon von Geyr, whose nephew Rudolf Adolf von Geyr had the present house built in 1714.

The name combines "Schall", from the noble Schall von Bell family who owned moorland here, with "Moor", later shortened to "Mauer". The Schall von Bell resided at nearby Burg Gleuel. The house itself is a plain three-story rendered baroque building of 1714, probably by the Bonn court architect of the time.

The building sits in a reforested wooded area between Gotteshülfe pond and the northern part of the relocated village. Accessibility varies with the seasons, as paths are easier to navigate at some times of year than others.

The castle remained in its original location while the surrounding village was relocated in the 1950s due to coal mining. It is thus one of the few structures that survived the complete restructuring of the landscape.