The seigneury of Vascœuil, which came under the seigneury of Saint-Denis-le-Thiboult, belonged in 1080 to Gilbert de Vascœuil. The domain of Vascœuil belonged to the Duchy of Longueville until 1694. On that date, the last duke having died without descendants, the King of France appropriated his lands. The stronghold of Vascœuil belonged until 1505 to the powerful family of The Hague, then was sold to the Rouen merchant Guillaume Le Gras.
The tower of the castle housed in its time the study of the historian Jules Michelet, who stayed there several times from 1843 to 1860, his son-in-law Mr. A. Dumesnil then being the owner of the castle.
The castle visible today is an old house from the 14th and 16th centuries, surmounted by an octagonal tower from the 12th century. In front is a main courtyard, where there is a dovecote. The whole is part of a French park of three hectares.