Château de Louye, Listed historical monument in Louye, France.

Château de Louye stands in Louye, in the Eure department of Normandy. Rebuilt from 1478 by Gauvin de Dreux on an L-shaped plan, it is built of brick with cut-flint facing and blue-brick patterns on the facade. Three 15th-century towers remain, the tallest holding the main entrance; the west wing was extended in the 18th century around a central perron.

The castle was built on the grounds of a former fortress that Richard the Lionheart defended against French forces in the late 1100s. Its current form took shape through successive renovations by different owners who adapted the building to their own needs and tastes.

The name Louye may come from a Celtic word of unknown meaning or from the Latin auditus, "hearing": echoes, violent winds, or a lost huntsman who heard the horns again and found his way. On the east facade, blue bricks form patterns, as at the Château de Maintenon.

The château stands on a raised terrace above a wall, reached from the village of Louye in the Eure; the entrance front is the one with the round tower and conical roof. The whole domain, including the park, kitchen garden and boundary wall, is a listed monument, so access is limited to what the owners open. The 19th-century neo-Gothic tower folly in the park is best seen from the grounds.

The property includes an attached farm that was built in the 19th century and equipped with innovative water management systems for its time. This installation shows how owners improved their estates with the advanced technology available to them.