House and when he married his star designer Clarice Cliff in 1940, she moved into the house and lived there until 1972. It is her association that has made the house particularly famous since. In 1902 Parker and Unwin were asked to design a model village at New Earswick near York for Joseph and Benjamin Seebohm Rowntree, and the following year they were given the opportunity to take part in the creation of Letchworth (loosely based on the Utopian plan of Ebenezer Howard), when the First Garden City Company asked them to submit a plan. In 1903 they were involved with the "Cottages Near a Town Exhibit" for the Northern Art Workers Guild of Manchester. In 1904 after their plan was adopted they opened a second office at Baldock. In 1905 Henrietta Barnett asked them to plan the new garden suburb at Hampstead, now known as Hampstead Garden Suburb. Unwin moved from Letchworth to Hampstead in 1906, and lived there for the rest of his life at the farmstead Wyldes Farm. In 1907, Ealing Tenants Limited, a progressive cooperative in west London, appointed him to take forward the development of Brentham garden suburb. Unwin joined the Local Government Board in December 1914. In 1915 he was seconded to the Ministry of Munitions to design the villages of Gretna and Eastriggs and supervise others. From 1917 he had an influential role at the Tudor Walters Committee on working-class housing whose report was published in 1919, the year in which he was appointed Chief Architect to the newly formed Ministry of Health. That post had evolved into the Chief Technical Officer for Housing and Town Planning by the time of his retirement in November 1928. His demonstration during the Great War of the principles of building homes rapidly and economically whilst maintaining satisfactory standards for gardens, family privacy and internal spaces, gave him great influence over the Tudor Walters Committee and hence, indirectly, over much inter-war public housing. This report marked Unwin's definitive break from the traditional 'garden city' concept, as it proposed that the new developments should be peripheral 'satellites' rather than fully-fledged garden cities. Unwin became technical adviser to the Greater London Regional Planning Committee in 1929 and largely wrote its two reports, the first published in that year and the second in 1933. Unwin was President of the Royal Town Planning Institute (RTPI) from 1915 to 1916, President of