What is HMO? A HMO is a building, property or flat which is occupied by three or more persons, living as a household, where rent is paid. The most common type of HMO is when three or more unrelated personnel occupy a house, each pay for their own bedroom but share a communal kitchen and bathroom/s. Your property would be classed as HMO if both of the following apply: At least 3 tenants live in you Tags: Landlords, Hmo, Letting Agents, Property Management, Renting Out Property, Renting My Home,