In the heart of London's Mayfair district, the Saudi Arabian Embassy occupies Crewe House, a detached mansion designed and constructed by Edward Sheppard in 1730. It is a Grade II listed building. British Listed Buildings writes: "Interior much altered early nineteenth century with restrained neo-classical and Grecian detail and again early twentieth century with fine neo-Adam Georgian decoration but retains some plasterwork ceilings which may well be original Shepherd."