Domestic architecture of the twentieth century can claim particular significance. The Arts and Crafts Movement and the Garden City Movement are two international trends of modern times that originated in England, and the private house - the unit of the English suburb - lay at their heart. In the inter-war years, interesting private houses were built in a variety of traditional as well as modern styles, and to an extent this continued in the post-war years. The Garden City Movement operated on a much broader scale than the Arts and Crafts Movement, which it embraced, and produced developments in town planning of the first order. Its founder, Ebenezer Howard, tirelessly promoted the garden city as an alternative to unrestrained urban growth but the movement soon expanded to encompass garden suburbs, mostly famously at Hampstead, London Borough of Brent (planned by Barry Parker and Raymond Unwin but with other architects, including Lutyens, from 1906 onwards), and garden villages.