The manor of Benham Valence was granted by Elizabeth I to Giovanni Battista Castiglione, her Italian tutor, in 1570. He is buried at St Mary's Church in Speen. The current house was built in 1774-1775 by William Craven, 6th Baron Craven, and was designed by the architect Henry Holland. Benham Park was three storeys high, nine bays wide, in a plain neoclassical style, of stone, with a tetrastyle Ionic portico. The interiors have been altered. The Circular Hall in the centre of the building, with its large niches and fine plasterwork, is probably as designed by Holland; it has an opening in the ceiling rising to the galleried floor above and a glazed dome. The principal staircase is also original. The house was greatly altered in 1914; the portico at the rear of the house had its pediment removed and replaced by a stone balustrade. The roof was lowered in pitch and hidden behind a balustrade decorated at regular intervals. The servants quarters were also demolished due to poor structural condition. The house is Grade II* listed, and one of its pairs of 17th-century ornate stone gate piers, removed from Hamstead Marshall, is Grade I listed. The park itself is at Grade II and has a lake with mill beside the house and aqueducts or artificial drains leading across marshy wetland to the River Kennet to the far south. The house was built by Henry Holland and Capability Brown for William, 6th Baron Craven in 1775. It was later the home of his widow, Elizabeth Craven and her second husband, Charles Alexander, Margrave of Brandenburg-Ansbach. In the late 19th and early 20th century, Benham Place was the family seat of the Sutton baronets. Sir Richard Lexington Sutton sold Benham Park and in 1982. The building was converted into offices in 1983 by the IT companyNorsk Data, who used it as their headquarters for European operations, until the company's dissolution in 1992. Then it was home to 2e2, an ICT lifecycle services provider, until 2012 when it dissolved. Also within the grounds were two office buildings built in the 1980s and these housed other companies such as mobile data solution provider CognitoIQ, Exony and Idox, all of which have now moved to other premises as the phases comprising the office block were demolished.
