Mickeln House, Manor house in Himmelgeist, Düsseldorf, Germany.

Mickeln House is a manor house built in 1843 by architect Josef Niehaus as a summer residence for Duke Ludwig von Arenberg. Its square plan measures 19.55 metres per side, and all four facades are designed identically apart from an outside staircase on the north side. Niehaus based the design on 16th-century engravings of villas by Galeazzo Alessi.

Haus Mickeln, first recorded in 1210, burned down in 1836. Its owner, Prosper Ludwig von Arenberg, used the insurance payment to commission architect Josef Niehaus to build a summer residence on the same site in 1843. Niehaus based the design on 16th-century engravings of villas by Galeazzo Alessi.

The house takes its name from the old Haus Mickeln estate recorded in 1210. Its design copies engravings of 16th-century villas by the Italian architect Galeazzo Alessi, which Josef Niehaus used as models for the 1843 summer residence. The lime-tree avenue at the entrance portal follows the 1843 garden plan by Maximilian Friedrich Weyhe.

The estate lies in Himmelgeist in southern Düsseldorf, and the tree-lined path to the entrance portal is bordered by lime trees. Since June 2000 the Heinrich Heine University has used the house as a conference centre and guest house, so the interior is generally open only in connection with university events.

The lime trees lining the path to the entrance portal follow a planting scheme from 1843, when Maximilian Friedrich Weyhe designed the surrounding park. Two Lebanon cedars from that period are listed among Düsseldorf's natural monuments, alongside surviving plane trees and European beeches.