The Housing, Town Planning, &c. Act 1919 (9 & 10 Geo. 5. c. 35) was an Act of the Parliament of the United Kingdom. It was also known as the Addison Act after Minister of Health, Christopher Addison, who was Minister for Housing. The Act was passed to allow the building of new houses after the First World War, and marked the start of a long 20th-century tradition of state-owned housing in planned council estates. A separate Act was passed for Scotland.