Château d'Hénencourt, 17th-century castle in Hénencourt, France.

The Château d'Hénencourt is a brick-and-stone château at Hénencourt in the Somme. Its central block, with a slate hipped roof and tall brick chimneys, keeps a six-column Ionic peristyle under a triangular pediment carved with the Lameth arms; the east wing survives, while the west wing lies in ruins. A curved avant-corps with a cupola faces the park, and a wrought-iron gate by Jean Veyren stands between stone pillars topped with urns.

Built in the 17th century by the Lameth family after the Spanish invasions, the château was remodelled in the second half of the following century by an architect close to Pierre Contant d'Ivry, who added a central avant-corps to each facade. In 1918 the collapse of a British sap set off a bomb and a fire that destroyed half the building; the ruined part was never rebuilt, leaving the central block, the east wing and the west wing ruins. It remains in the Lameth family.

The château is nicknamed the "petit Versailles picard". Its entrance gate was forged by Jean Veyren in the 18th century; in the mid-19th century the Marquis de Lameth, dismantling the Château d'Heilly, bought balustrades and stone urns and had them placed atop the gate's pilasters, where the two lidded urns still stand.

The château is private property and visits require advance arrangements with the current owners. It makes sense to gather information and make contact before planning a visit.

The dovecote behind the ruined outbuilding on the farm perimeter carries a military pediment with two unicorns, carved by the Amiens sculptor Jean-Baptiste Carpentier. The entrance gate was forged by Jean Veyren in the 18th century; in the mid-19th century the Marquis de Lameth added balustrades and stone urns bought when the Château d'Heilly was dismantled.