Mansion House, Cardiff Mansion House, Cardiff The Mansion House (), located on Richmond Road, is the official residence of the Lord Mayor of Cardiff. Architects Habershon & Fawckner designed the Mansion House and it was built in 1896 for James Howell, owner of Howells department store. It was then known then as 'The Grove'. James Howell was a Cardiff businessman who opened his first shop in 1865. In 1890 he made arrangements to build a property on land leased from Lord Tredegar. The plans were for a large family home, to house his 11 children. The one unusual aspect of the house is
Winfield House Winfield House Winfield House is a mansion in Regent's Park, London, England, commissioned in 1936 by American heiress Barbara Hutton. The grounds are ; the second-largest private garden in the British capital after that of Buckingham Palace. Since 1955 it has been the official residence of the United States Ambassador. The house is Grade II listed as an "exceptional ambassador's residence and as a notable Neo-Georgian town house containing numerous features of note." It is located near Quinlan Terry's Regent's Park villas. The first house on the site was Hertford Villa, the largest of the eight homes originally built in