Catshuis, Official residence in The Hague, Netherlands

Catshuis is a white mansion on the Sorghvliet estate in The Hague, with a tall left block under a hipped slate roof and a lower right wing with three dormer windows. The left block has two storeys of white-framed windows, the wing one storey of tall windows and doors, and a pale stone band runs along the base. Architect Claes Dircx van Balckeneynde built it for Jacob Cats, originally without an upper floor; Hendrik Jacob Dammerman Jr. gave it its present volume in 1919-1921.

City architect Claes Dircx van Balckeneynde built the house for poet and politician Jacob Cats, who moved in on 14 July 1652; it then had only one storey and was called Huis Sorghvliet. In 1738 Willem Bentinck placed a bronze bell in a clock tower on the roof. The Catshuis became the prime minister's official residence in 1963.

The name refers to Jacob Cats, a Dutch poet and statesman from the 17th century. The grounds serve today for official receptions and government meetings, with visitors gaining access only during special occasions.

The Catshuis itself is not open to the public. The surrounding Sorghvliet estate is accessible with an annual pass, sold once a year in mid-December at the VVV office in The Hague Centraal station; only a limited number are available and each person may buy at most two.

Willem Bentinck added a bell tower in 1738, which still carries a bronze bell today. The grounds contain several old trees, some of which are said to date from the original 17th-century planting.