House in Multiple Occupation

A House in Multiple Occupation (HMO) is a rented property occupied by three or more people from two or more households who share facilities, defined in sections 254-260 of the Housing Act 2004. Since October 2018, mandatory licensing applies to all HMOs with five or more occupants forming two or more households, regardless of the number of storeys. Many councils also operate additional licensing schemes requiring licences for smaller HMOs in designated areas, and selective licensing for all rented properties in defined areas. Licence conditions typically include minimum room sizes, fire safety measures, electrical and gas safety, and management standards. Operating an unlicensed licensable HMO is a criminal offence with an unlimited fine, and tenants can apply for a Rent Repayment Order to reclaim up to 12 months' rent. The Housing Act 2004 requires HMO managers to comply with the HMO Management Regulations 2006, covering matters such as repairs, communal area maintenance, and waste disposal; the local authority Environmental Health team enforces.

What it means in practice. Whether a property is an HMO turns on the facts, not on what the tenancy agreement calls it. Three unrelated tenants sharing a kitchen make an HMO even if each signed a separate agreement, and even if the landlord describes them as lodgers. Whether that HMO needs a licence is a second, separate question: mandatory licensing bites at five or more occupants in two or more households, and many councils extend licensing further through additional or selective schemes covering smaller properties.

A worked example. Five students rent a three-bedroom terrace, with two of the bedrooms shared. That is five people in five households sharing a kitchen and bathroom, so mandatory licensing applies. The landlord has no licence. The council issues a civil penalty, and separately the tenants apply to the First-tier Tribunal for a Rent Repayment Order. Because they paid £2,000 a month between them, the tribunal orders repayment of a substantial share of the previous twelve months' rent — money the landlord cannot recover.

Common pitfalls. Landlords routinely assume that a licence for one property covers another, or that a property let to a single family cannot be an HMO — it can, if the occupants form two or more households. Tenants often do not realise they can check the licence: every council keeps a public HMO register. And "I did not know a scheme existed" is not a defence, since designations are published locally and licensing duties fall on the person in control of the property.

How it relates to other terms. HMO licensing sits alongside selective licensing, which covers all rented homes in a designated area regardless of sharing. Breaching either supports a Rent Repayment Order. HMO management duties overlap with disrepair obligations and the fitness for human habitation standard, and hazards in shared homes are assessed through the HHSRS.

What to do next. Read our HMO basics guide to work out whether your property is licensable, then shared housing rights if you are a tenant. Where a licensing designation may apply, check selective licensing and ask the council to confirm the position in writing.