The Duke was prompt in commissioning the architect Charles Barry to rebuild Cliveden in the style of an Italianate villa. Barry, whose most famous project is arguably the Houses of Parliament, Westminster, was inspired by the outline of the two earlier houses for his design. The third (and present) house on the site was completed in 1851–52, and its exterior appearance has little changed since then. The -tall clock tower, which is actually a water tower (still working to this day) was added in 1861 by the architect Henry Clutton. Also around this time another architect, George Devey, was commissioned to build half-timbered cottages on the estate along with a dairy and boathouse.