Home › Articles › HMO compliance checklist
HMO Compliance Checklist: Licensing, Room Sizes, Fire Safety & Standards
Updated 7 August 2026
Houses in Multiple Occupation (HMOs) carry everything a normal rental needs — plus a whole extra layer of duties around licensing, minimum room sizes, fire safety and living standards. HMOs are also where enforcement is heaviest and the penalties are steepest in the sector. This is a complete HMO compliance checklist for landlords in England: what counts as an HMO, when you need a licence, the room-size and safety rules, and how to stay on top of it all. For the standard duties every tenancy shares, see the full UK landlord compliance checklist.
On this page
What counts as an HMO?
A property is generally a House in Multiple Occupation when it is let to 3 or more people who form more than one household and who share a kitchen, bathroom or toilet. A "household" is a single person or members of the same family living together — so three friends sharing a house are three households, while a couple and their children are one.
Bedsits, shared houses, many blocks of converted flats and some buildings above shops can all be HMOs. If you are not sure, your local council's private-sector housing team can confirm — and getting it wrong is not a defence.
Does your HMO need a licence?
There are three types of licensing, and a property can fall under more than one scheme depending on where it is:
| Licence type | Typically applies to |
|---|---|
| Mandatory HMO | Any HMO with 5 or more occupants in 2 or more households. Required across England since 1 October 2018 — the old "3 or more storeys" rule was scrapped. |
| Additional HMO | Smaller HMOs (often 3–4 sharers), where a council has introduced a scheme for all or part of its area. |
| Selective | Can cover all privately rented homes — not just HMOs — in a designated area. |
Schemes vary widely by council and change regularly, so always check your local authority before you let. A licence lasts up to five years, the fee is set locally (commonly around £500–£1,100+), and the licence holder must pass a "fit and proper person" test. Renew before the licence expires — a lapsed licence is treated the same as no licence.
HMO minimum room sizes
Licensed HMOs must meet national minimum sizes for any room used for sleeping. These are mandatory licence conditions, and councils can impose larger standards:
| Who sleeps in the room | Minimum floor area |
|---|---|
| One person aged over 10 | 6.51 m² |
| Two people aged over 10 | 10.22 m² |
| One child under 10 | 4.64 m² |
Any room smaller than 4.64 m² cannot be used as sleeping accommodation at all. Floor space where the ceiling is lower than 1.5 m doesn't count towards the total. Your licence will also state the maximum number of people who may occupy each room and the property as a whole — exceeding it is a breach.
Fire safety in an HMO
Fire safety is where most HMO enforcement action starts. Requirements scale with the size and layout of the property, but typically include:
- Interlinked smoke alarms — usually a mains-powered, interlinked system so that one alarm sets off all of them, with a heat alarm in the kitchen.
- Fire doors — self-closing fire doors (commonly FD30) to higher-risk rooms and protecting the escape route.
- A protected escape route — a clear, unobstructed way out from every storey, kept free of clutter and combustibles.
- Emergency lighting in larger or multi-storey HMOs, plus fire extinguishers/blankets where required.
- A fire risk assessment for the common parts, reviewed regularly.
Most councils assess HMO fire safety against the national LACORS guidance. If in doubt, a competent fire risk assessor is a worthwhile investment.
Amenity standards
An HMO must give occupants adequate shared facilities for the number of people living there. Exact ratios are set locally, but as a guide councils commonly expect roughly one bathroom and WC per five occupants, and a kitchen sized and equipped for the household — enough hobs, worktop, storage and food-preparation space. Under-provision is one of the most common reasons an HMO licence is refused or conditioned.
The Management of HMOs Regulations 2006
Separate from licensing, every HMO manager has legal duties under the Management of Houses in Multiple Occupation (England) Regulations 2006. These include displaying the manager's name, address and contact details inside the property; keeping the common parts, shared facilities and any garden safe and in good order; maintaining gas, electrical and water supplies; and dealing with waste. These duties apply whether or not the HMO needs a licence.
Planning permission & Article 4
Licensing and planning are separate — you can need both. A small HMO for 3–6 unrelated sharers is Use Class C4, and converting a single home (C3) to a small HMO is usually permitted development. But many councils have an Article 4 Direction that removes that automatic right in a given area, so you must apply for planning permission. A large HMO for 7 or more people is "sui generis" and always needs planning permission. Check your council's Article 4 map before you buy or convert.
Penalties for getting it wrong
HMO enforcement is aggressive because the risk to tenants is high. Operating a licensable HMO without a licence, or breaching conditions, can lead to:
- An unlimited fine on conviction, or a civil penalty of up to £30,000 per offence issued directly by the council.
- A Rent Repayment Order forcing you to repay up to 12 months' rent to tenants or the council.
- A banning order and entry on the database of rogue landlords and agents.
- Restrictions on regaining possession while the property is unlicensed.
The tracking challenge: an HMO stacks licence expiry dates on top of gas, electrical, fire-safety and alarm renewals — often across several properties. JRM Compliance tracks HMO, additional and selective licences alongside every certificate, so a licence renewal or safety check never slips through the cracks.
The full HMO compliance checklist
Run this checklist against every HMO you let:
- Confirm whether the property is an HMO and which licence(s) it needs — mandatory, additional and/or selective.
- Hold a valid HMO licence and diarise its renewal date (up to 5 years).
- Meet the minimum room sizes and never exceed the licensed occupancy.
- Install interlinked mains smoke alarms plus a kitchen heat alarm.
- Fit self-closing fire doors and keep the escape route clear.
- Hold a current fire risk assessment for the common parts.
- Provide adequate kitchen, bathroom and toilet facilities for the occupancy.
- Hold a valid annual Gas Safety Record (CP12) and a 5-yearly EICR.
- Meet the minimum EPC rating and plan for the rising standard (EPC C by 2030).
- Display the manager's details and comply with the 2006 Management Regulations.
- Confirm planning status — C4, sui generis, or an Article 4 area.
- Keep deposits protected, Right to Rent checks done, and the prescribed documents served.
Frequently asked questions
How many tenants make a property an HMO?
A property is generally an HMO when it is let to 3 or more people who form more than one household (i.e. not all one family) and who share a kitchen, bathroom or toilet. If it is let to 5 or more people in 2 or more households it will usually need a mandatory HMO licence.
When does an HMO need a mandatory licence?
Since 1 October 2018, any HMO in England occupied by 5 or more people in 2 or more separate households needs a mandatory HMO licence, regardless of how many storeys it has. Councils can also run additional licensing (smaller HMOs) and selective licensing (all rentals in an area), so always check your local authority.
What is the minimum room size for an HMO?
For licensed HMOs in England the national minimum sleeping-room sizes are 6.51 m² for one person over 10, 10.22 m² for two people over 10, and 4.64 m² for one child under 10. Any room smaller than 4.64 m² cannot be used for sleeping, floor area under a 1.5 m ceiling height doesn't count, and councils can set larger standards.
Do I need planning permission for an HMO?
A small HMO for 3–6 unrelated sharers is Use Class C4, and converting from a single home is usually permitted development — unless the council has an Article 4 Direction, in which case you must apply. A large HMO for 7 or more people is "sui generis" and always needs planning permission.
How much does an HMO licence cost and how long does it last?
Fees are set by each council and commonly range from about £500 to £1,100 or more depending on the area and property size. A licence typically lasts up to 5 years and must be renewed before it expires. The licence holder must be a "fit and proper person".
What are the penalties for an unlicensed HMO?
Operating a licensable HMO without a licence is a criminal offence. It can carry an unlimited fine on conviction, or a civil penalty of up to £30,000, plus a rent repayment order of up to 12 months' rent, a possible banning order and entry on the rogue landlord database.
Read the full UK Landlord Compliance Checklist → · See how JRM tracks it → · Pricing →
General guidance for landlords in England, not legal advice. Rules, fees and standards vary by local authority and change over time; costs are indicative. Always check the current position on GOV.UK or with your local council before acting.