His works included: • In 1912,
Townhill Park House,
Southampton. Italianate Gardens with planting schemes by
Gertrude Jekyll. • In 1913 he was appointed architect to the Royal Institution and masterminded its major reconstruction. • Between 1926 and 1931,
Grosvenor House, Park Lane London. The design was started by Guthrie but finished by
Edwin Lutyens. • In 1929, the
University of London Observatory. • In the 1930s, the BBC transmitter building at the
Brookmans Park transmitting station near London, followed by others at
Moorside Edge,
Westerglen,
Washford,
Lisnagarvey,
Burghead,
Stagshaw,
Start Point and
Droitwich. These buildings had impressive
Art Deco facades in
Portland stone, and many of them survive. The Washford building is
Grade II listed. • In 1932, as part of the firm Wimperis, Simpson and Guthrie and with Maurice Bloom:
Marine Gate, Brighton. • In 1936,
Winfield House, the Official Ambassadorial residence of the U.S. Ambassador to the United Kingdom. ==References==