Haus Eyll, Architectural heritage monument in Straelen, Germany.

Haus Eyll is an architectural heritage monument in Straelen that displays typical building features of the North Rhine-Westphalia region. The structure preserves characteristic details like facade design and window forms that define the local building style of its era.

Haus Eyll was first documented on 21 July 1432 as meyersdonck en nyenhoff in an inheritance contract between the von Bocholtz siblings, who assigned it to Gerhard von Eyll and Elisabeth von Bocholtz. By 1539 it belonged to the estate of Haus Vlassrath and consisted of a farm and a wooden tower protected by a moat and a hedge-covered rampart. In 1646 Arnold von Krümmel and his wife bought one half for 500 Reichstaler, and in 1647 the other half, reuniting the property. Anna Maria Philippina de Varo and Johann Josef de Permiliack de Belcastel had the house rebuilt in 1681, as wall anchors bearing that year on the show facade attest.

The name Eyll comes from the von Eyll family, who held the estate from 1432 and whose name passed to the property over time. The house is still privately owned and opens only for a few public events each year. A small Marian shrine with a statue, built around 1900 and rededicated in 1993, leans against the former bakehouse along the approach lane.

Haus Eyll lies in the Hetzert farming hamlet, about 2.5 km northeast of Straelen's centre, on the western bank of the Niers. A straight avenue roughly 400 m long leads from the west to the former moated site. The estate is privately owned and opens only during a few public events, so check event notices before setting out.

The wall anchors on the show façade carry the year 1681, when Anna Maria Philippina de Varo and her husband Johann Josef de Permiliack de Belcastel had the house rebuilt. The former moat, now silted up, still traces the roughly eight-square-metre island that made Eyll a water castle.