Haus Vornholz, Architectural heritage monument in Ennigerloh, Germany.

Haus Vornholz is a three-winged moated château on two islands in Ostenfelde, surrounded by double moats and an earthen wall. The plastered rubble-stone main house has two storeys, eight axes and a tall hipped roof, with a portal bearing the alliance coat of arms of the von Galen and von Nagel families, reached by a double flight of steps. A brick water weir with a cylindrical obstacle called the Dame links the outer bailey to the main island.

Haus Vornholz was first documented in 1172. Around 1330 the knight Hiricus dictus Vinke de Ostenfelde built Burg Varenholte, whose name became Vornholz. After a fire in 1655, Dietrich Hermann von Nagel had the burnt castle demolished and the present house built on the same spot to plans by Peter Pictorius. The von Nagel-Doornick family still owns it.

The name derives from Varenholte, meaning "before the wood", after the castle built around 1330 by the knight Hiricus dictus Vinke de Ostenfelde. The von Nagel-Doornick family still owns the estate. In the north chapel wing hangs a carved crucifix from the first half of the 18th century whose paint layer is lost, while the apostle figures from the end of the 17th century keep theirs.

Haus Vornholz stands in Ostenfelde, about 3 km north of Ennigerloh's centre, surrounded by double moats and an earthen wall; the grounds are private and the family still lives here. View the gate with its round and square brick pillars and the five shuttered windows of the west wing from the public path. The park behind the house is not open to visitors.

The brick water weir on the north side, called a Wasserbär, links the outer bailey to the main island and holds back the water of the moats. In its middle sits a cylindrical obstacle known as the Dame. The dining hall keeps a beamed ceiling from the building period and a parquet floor dated 1841.