Château de Beaumarchais, Renaissance castle in Bretignolles-sur-Mer, France.

The Château de Beaumarchais is a castle in Brétignolles-sur-Mer, Vendée, built in the 16th century by Vincent Bouhier de L'Ecluse on the foundations of an earlier castle from the beginning of that century, and remodelled in the early 19th century. Its pale beige stone walls rise three storeys beneath a steep dark grey slate roof, with two projecting pavilions with rounded turret roofs and a slightly taller square pavilion on the right. The facade has regularly spaced rectangular windows with white frames and three dormer windows on each side of the centre; tall arched openings sit on the ground floor at the middle and near the right end.

Vincent Bouhier de L'Ecluse built the château in the 16th century on the foundations of an earlier castle from the beginning of that century. It was altered in the early 19th century. On 27 June 1962, its facades and roofs, along with the ground-floor fireplace, were listed as a monument historique.

The name Beaumarchais is attached to the estate and passed with it through the Bouhier de L'Ecluse family, who built the present building in the 16th century. The ground-floor fireplace, protected alongside the facades and roofs since 1962, is the interior element singled out for its carved stonework.

The château stands on private land in Brétignolles-sur-Mer, Vendée, and its interior is not open to visitors. The gravel drive and the facade can be seen from the public approach; the listed elements are the facades, the roofs and the ground-floor fireplace. The nearest documentation is held by the Médiathèque du Patrimoine et de la Photographie in Charenton-le-Pont.

The 27 June 1962 listing covers the facades, the roofs and the ground-floor fireplace, not the whole interior. The fireplace is thus protected in its own right, alongside the pale masonry walls and steep slate roofs seen from the drive.