HMO’s- The history and present day The Regional Housing Authority in all areas is the 'Council' and it has the obligation of enforcing the terms of the Act introduced for 'Housing' in 2004 as well as the affiliated rules and regulations in order to maintain some disciplined code and principle in HMOs, which are known as Houses in Multiple Occupation. Property owners quite often question the reason why Local authorities were concerned about governing the rules and regulations in leased property .