During the First World War the Tudor Walters Report was published, setting standards for the accommodations needed for returning soldiers, dubbed "homes fit for heroes". The Housing, Town Planning, &c. Act 1919 (Addison Act) incorporated those recommendations including one that allowed for housing based on the Radburn design. In this design, small clusters of up to 15 houses would circle small cul-de-sacs of a district feeder road. This tipped the balance away from short terraces towards pairs of semi-detached houses. The housing density was initially generous, but was reduced in 1923 after a change of government from the Liberal Party to the Conservative Party.