HMO Compliance Guide for UK Landlords 2026

What Is an HMO?

A House in Multiple Occupation (HMO) is a property rented by three or more unrelated people who share facilities such as a kitchen or bathroom.

A mandatory licensable HMO is one that:

Has 5 or more occupants from 2 or more households

Has shared facilities (kitchen, bathroom, toilet)

In addition, many local authorities operate additional licensing schemes that extend HMO licensing requirements to smaller properties (often 3+ occupants). You must check with your local council whether any additional licensing applies in your area.

Why HMO Compliance Is More Complex

HMOs are subject to additional compliance requirements beyond the standard private rented sector rules. These include:

Mandatory HMO licence

Minimum room sizes

Enhanced fire safety requirements

HMO Management Regulations

Planning permission (in many cases)

Failure to licence a mandatory HMO is a criminal offence with unlimited fines. Tenants in an unlicensed HMO can also apply for a Rent Repayment Order — forcing you to repay up to 12 months of rent.

HMO Licences

Who needs a mandatory HMO licence:

Properties with 5+ occupants from 2+ households in England

How to apply:

Contact your local housing authority

Each council has its own process and fees (typically £500–£1,500)

Licences usually last 5 years

Renewal must be applied for before the existing licence expires

What licensing requires:

Adequate fire safety (fire doors, alarms, emergency lighting)

Adequate facilities for the number of occupants

Fit and proper person test for the licence holder

Gas Safety Certificate, EICR and EPC all in date

Minimum Room Sizes (England)

The Housing Act 2004 (amended in 2018) requires minimum sleeping room sizes in licensed HMOs:

Adult (over 10 years old): 6.51 m² (single occupancy) / 10.22 m² (double occupancy)

Child (under 10 years old): 4.64 m²

Rooms below these sizes cannot legally be used as sleeping rooms. The local authority can issue a licence condition restricting use of rooms that don't meet the minimum.

Fire Safety Requirements for HMOs

HMOs have stricter fire safety requirements than standard lets:

Fire doors: Required for bedrooms, kitchens and main habitable rooms

Fire detection: Interlinked smoke alarms on every floor and in every room; heat detectors in kitchens

Emergency lighting: Required in communal areas in larger HMOs

Escape routes: Must be kept clear at all times

Fire safety notices: Required in some HMOs

Your local fire authority may conduct inspections. Breaches can result in prohibition notices preventing occupation.

HMO Management Regulations

The HMO Management Regulations require the manager (you or an agent) to:

Keep all common parts clean and in good repair

Ensure all fixtures and fittings are maintained

Provide adequate rubbish facilities

Ensure fire safety measures are working

Respond to emergency repair requests promptly

Breach of the Management Regulations is a criminal offence.

Does LetCompliance Cover HMOs?

Yes. LetCompliance tracks Gas Safety, EICR, EPC, deposit protection and Right to Rent for HMO properties just like standard lets. We also allow you to record HMO licence expiry dates and set reminders before they need renewing.

Given the higher compliance stakes for HMOs, having automated tracking is particularly important.

Track your HMO compliance with LetCompliance →