House in multiple occupation (HMO)

If you live in a house share, the law probably gives your home a special status — with licensing duties for your landlord and real remedies for you if those duties are ignored.

How do I know if my house share is an HMO?

Under the standard test in section 254 of the Housing Act 2004, a property is generally an HMO if at least three tenants live there forming more than one household — meaning they are not all one family — and they share a toilet, bathroom or kitchen. A typical house share of three friends on separate agreements, or even on one joint agreement, usually qualifies.

When does an HMO need a licence?

Mandatory licensing applies across England to HMOs occupied by five or more people forming two or more households. Councils can also run additional licensing schemes covering smaller HMOs, and selective licensing schemes covering ordinary rentals in designated areas, so the only reliable check is your local council's licensing register.

What can tenants do if their HMO should be licensed but is not?

Operating a licensable HMO without a licence is an offence, and tenants can apply to the First-tier Tribunal (Property Chamber) for a Rent Repayment Order requiring the landlord to repay up to 24 months' rent for an offence on or after 1 May 2026 (12 months before that), under the framework as amended by the Renters' Rights Act 2025. Councils can also prosecute or impose civil penalties on the landlord.

Does an unlicensed HMO landlord have to repay all my rent automatically?

No. The tribunal decides whether the offence is proved to the criminal standard and then how much to order, considering the landlord's conduct, financial circumstances and any previous offences, and the tenant's own conduct. Awards vary from a portion of rent to the full capped amount — nothing about the amount is automatic.

What standards must an HMO meet?

Licensed HMOs must meet conditions on matters like gas and electrical safety, smoke alarms and suitability of the property for the number of occupants, including nationally set minimum bedroom sizes. All HMOs are also covered by the HMO management regulations, which require the person managing to keep common parts, facilities and escape routes in good order.

Is a building converted into self-contained flats an HMO?

Sometimes. A converted block can fall within section 257 of the Housing Act 2004 if the conversion did not meet the 1991 Building Regulations and fewer than two-thirds of the flats are owner-occupied. These converted-building HMOs have their own rules, and licensing depends on local schemes — another reason to check with the council.

What makes a property an HMO

The core test, in section 254 of the Housing Act 2004, looks at people rather than buildings. Count the occupiers, group them into households — a household being a single person or members of one family living together — and ask whether basic amenities are shared. Three or more occupiers forming two or more households, sharing a toilet, bathroom or kitchen, and paying rent: that is an HMO. Bedsits with some shared facilities, student house shares and professional flat shares all routinely qualify.

A separate route, section 257, captures some buildings converted entirely into self-contained flats where the conversion fell short of the 1991 Building Regulations and most flats are rented out. The label matters because HMO status switches on legal machinery: management regulations for every HMO, and licensing for many.

The reason Parliament singled out shared houses is risk. HMOs concentrate more people, more cooking, more electrical load and more escape-route complexity into one building than a single-family let, and historically they have seen worse fire and overcrowding outcomes. The regime answers that with named duty-holders: every HMO must have a person managing who keeps fire precautions, common parts and shared amenities in order, and councils hold inspection and enforcement powers — from improvement notices under the HHSRS system to civil penalties and prosecution — when standards slip.

Licensing: who needs it

• Mandatory licensing.
• Any HMO occupied by five or more people forming two or more households must be licensed, anywhere in England, whatever the size of the building.
• Additional licensing.
• Councils can designate schemes requiring licences for smaller HMOs — for example three or four sharers — in all or part of their area.
• Selective licensing.
• Some areas require a licence for
• privately rented home, HMO or not. The council's public register is the way to check what applies to your address.
• A licence fixes the maximum number of occupants and imposes conditions on safety certificates, smoke alarms and minimum bedroom sizes, with the council able to inspect and enforce.

Five friends rent a four-bedroom house, each paying £600 per month. Five occupiers, five households, shared kitchen: mandatory licensing applies. Eighteen months in, one of them checks the council register and finds no licence has ever been held.

Rent paid per tenant per month

Months in the unlicensed period

Statutory cap on repayment

24 months (12 for offences before 1 May 2026)

Maximum each tenant can seek

Each tenant can apply to the

. The tribunal must be satisfied the unlicensed-HMO offence was committed, then decides how much of the 18 months' rent each tenant recovers, weighing the landlord's conduct and circumstances. The landlord separately risks a council civil penalty or prosecution.

Rent Repayment Order

First-tier Tribunal (Property Chamber)

Decent Homes Standard

Housing Act 2004, Part 2

Licensing of HMOs (Prescribed Description) (England) Order 2018

Management of HMOs (England) Regulations 2006

Houses in multiple occupation

House in Multiple Occupation (HMO) explained

What counts as a house in multiple occupation under the Housing Act 2004, when an HMO needs a licence, and what tenants can do if it is unlicensed.