evidence: These can be restrictive, however. Young people needed to marry or wait until they attained the age of 35 to qualify, for instance. Economic migrants making up c15% of the total population are not eligible for HDB housing. [...] In that light, the 1919 Addison Act provided for ‘Homes for Heroes’. It introduced generous government subsidies for new public housing with generous space and quality standards, supported by an imposed duty for local authorities to provide such housing, where local housing conditions required it. [...] The post-war economic expansion amid accompanying full employment amid growing mass affluence that brought most wage earners into the income tax base also allowed increasing numbers to step onto the housing ladder. By the early seventies owner occupation was the majority tenure.