Benham Park is an 18th‑century Georgian country house and parkland estate in Marsh Benham, near Newbury, West Berkshire, on the Berkshire Downs and close to the A34 and M4.
The present house was built between 1772 and 1775 for William Craven, 6th Baron Craven, on the site of the older Benham Valence Manor, after the earlier house was destroyed by fire. was designed by Henry Holland with major input from Lancelot “Capability” Brown, who also laid out the surrounding landscaped park.
Architecturally, it is a three‑storey, nine‑bay neoclassical mansion in stone, with a tetrastyle Ionic portico on the main front, forming an imposing Ionic‑order composition (shown above)
 
Interesting facts....
Lady Elizabeth Craven, dramatist and traveller, was unusually closely involved in specifying the design and interiors of the new 1770s house, a level of female control over a large country‑house project that contemporaries thought striking, and she later implied in her memoirs that she herself had effectively “redesigned” the landscape.