HMO Licensing 2026/27: Complete Guide for Landlords

What Counts as an HMO?

A House in Multiple Occupation (HMO) is a property rented out to at least three tenants who form more than one household and share facilities such as a kitchen or bathroom. A household generally means a single family unit or couple, so unrelated sharers, including students and young professionals in a shared house, typically make the property an HMO even with just three tenants.

Larger HMOs, with five or more tenants forming more than one household, are automatically subject to mandatory licensing across England and Wales, regardless of the number of storeys in the building, following reforms that removed the previous three-storey requirement.

Mandatory vs Additional Licensing

Mandatory licensing applies nationally to any HMO with five or more tenants forming more than one household, sharing amenities. Landlords must obtain a licence from the local council before letting such a property, and this obligation applies regardless of which council area the property is in.

Many local authorities also run additional licensing schemes, extending licensing requirements to smaller HMOs (as few as three tenants sharing facilities) within all or part of their area, often in response to concerns about poor housing conditions or anti-social behaviour in a particular neighbourhood. Selective licensing schemes go further still, sometimes covering single-let properties in designated areas regardless of HMO status. Landlords must check their specific council's current schemes, since coverage varies significantly and changes over time.

Room Size and Amenity Standards

National minimum room sizes apply to licensable HMOs to prevent overcrowding. As a guide, a single occupancy bedroom for someone over 10 years old must be at least 6.51 square metres, and a room for two people over 10 must be at least 10.22 square metres. Rooms below these minimums cannot lawfully be used as sleeping accommodation in a licensed HMO, and councils can require landlords to take rooms out of use if they fail to meet the standard.

Beyond room size, HMOs must meet minimum standards on kitchen facilities relative to occupant numbers, adequate bathroom and toilet provision, fire safety measures including interlinked smoke alarms and fire doors, and general management standards covering repairs, waste disposal and communal area maintenance.

The Licence Application Process

Landlords apply for an HMO licence directly to the relevant local council, which will assess the property against room size, amenity and fire safety standards, and check the landlord and any managing agent meets the "fit and proper person" test, covering matters such as relevant criminal convictions and previous landlord compliance history.

Licence fees vary considerably between councils, and licences are typically granted for up to five years, with the council able to attach specific conditions relating to that property, such as maximum occupancy numbers, fire safety equipment requirements, or management arrangements.

Penalties for Operating Without a Licence

Letting a licensable HMO without the required licence is a criminal offence and can result in an unlimited fine on conviction, or a civil penalty of up to £30,000 imposed directly by the council as an alternative to prosecution. Beyond the direct penalty, unlicensed operation also exposes landlords to Rent Repayment Orders, where tenants (or the council on their behalf) can apply to the First-tier Tribunal to reclaim up to 12 months of rent paid during the unlicensed period.

An unlicensed HMO landlord may also be barred from serving a valid Section 21 (or from April 2026, equivalent Renters' Rights Act) eviction notice while the property remains unlicensed, adding a significant practical restriction on top of the financial penalties.

Worked Example

Amir lets a six-bedroom house to six unrelated sharers, all with their own tenancy agreements, sharing one kitchen and two bathrooms. Because there are five or more tenants forming more than one household, this is a mandatory-licensable HMO regardless of the number of storeys, and Amir must hold a valid licence from his local council covering room sizes, fire safety and management standards.

Amir discovers one bedroom is only 5.8 square metres, below the 6.51 square metre single-occupancy minimum, and the council requires him to reduce occupancy of that room or convert it to non-sleeping use before the licence can be granted.

Common Pitfalls

• Assuming a small shared house is exempt. Additional licensing schemes can require a licence for HMOs with as few as three tenants in some council areas.
• Not checking room sizes against the national minimums. Undersized rooms can block a licence application or force a reduction in occupancy after the fact.
• Letting the licence lapse. Licences typically last up to five years and must be renewed in good time, since operating with an expired licence is treated the same as having none.
• Ignoring council-specific additional or selective licensing. Coverage and requirements vary significantly by local authority and change over time, so landlords must check current schemes for their specific address.
• Trying to serve an eviction notice while unlicensed. An unlicensed HMO landlord may be unable to serve a valid eviction notice until the licence position is resolved.