HMO Licensing: Do You Need a Licence, and What Happens If You Don't Have One?

The short answer

If you let a property to five or more people who form two or more households and they share a kitchen, bathroom or toilet, you almost certainly need a mandatory HMO licence from your local council. On top of that, many councils run their own additional or selective licensing schemes that catch smaller shares and even ordinary single lets — so the only way to be sure is to check the council for the specific postcode. Get it wrong and you're exposed to an unlimited fine on prosecution, a civil penalty of up to £30,000 as an alternative, and a possible Rent Repayment Order of up to 12 months' rent.

What actually counts as a mandatory HMO

A House in Multiple Occupation needs a mandatory licence when all three of these are true:

• It's occupied by 5 or more people;
• They form 2 or more separate households (a household is a single person or members of the same family living together); and
• The tenants share some facilities — a toilet, bathroom or kitchen.

A classic example is a five-bed house shared by five unrelated professionals or students. It doesn't matter whether the property is over three storeys — the old storey rule was removed back in October 2018, so a two-storey house of five sharers still needs a licence. (Source: GOV.UK, "House in multiple occupation licence"; verified July 2026.)

Additional and selective licensing — the local trap

This is where landlords get caught out. Mandatory licensing is national, but councils can bolt on two more schemes covering their own area:

• Additional licensing extends HMO licensing to smaller shared houses — for example a property let to three or four people in two or more households — where the council has decided there's a problem it wants to manage.
• Selective licensing goes further still: it can require every privately rented home in a designated area to be licensed, including an ordinary single-family let, regardless of how many people live there.

Both are discretionary and vary street by street. A property that needs no licence at all in one borough can require one two miles away. (Source: GOV.UK, "House in multiple occupation licence"; verified July 2026.)

Do this first: before you let a shared property, search your council's website for "HMO licensing" and "selective licensing" and check the exact street. It takes five minutes and it's the single biggest way landlords accidentally break the law.

The standards that come with a licence

A licence isn't just a fee — it commits you to running the property to a set standard. Expect conditions covering:

• Room sizes — national minimum sleeping-room sizes apply (broadly 6.51m² for one adult, 10.22m² for two), and the licence states the maximum number of occupants.
• Amenities — enough kitchens, bathrooms and toilets for the number of people.
• Fire safety — appropriate alarms, fire doors and escape routes.
• Gas and electrical safety — a current gas safety record and a satisfactory electrical installation report.
• Management — a "fit and proper" licence holder and good general upkeep.

Your smoke and carbon monoxide alarm duties and your five-yearly electrical inspection apply to HMOs just as they do to any let — the licence simply makes them a condition you can be inspected against.

What a licence costs, and how long it lasts

There's no single national fee — each council sets its own. In practice a mandatory HMO licence typically runs into several hundred pounds and often more in higher-cost areas, and licences are usually granted for up to five years (some councils issue shorter terms where there's a history of problems). The fee is not a fine; it's the cost of being lawful, and it's a deductible expense against your rental income. Budget for it, and diarise the renewal well before expiry — an expired licence is treated the same as never having had one.

Who the licence holder has to be

The person named on the licence must be a "fit and proper person" to hold it. Councils assess this by looking at matters such as unspent convictions involving fraud, dishonesty, violence, drugs or certain housing offences, and any previous breaches of landlord law. If you use a managing agent, the council will also want to be satisfied about who is actually in day-to-day control. The practical point: a poor compliance record elsewhere can follow you into a licence application, so keeping the rest of your obligations clean matters here too.

Common ways landlords get caught out

• A let that grows into an HMO. A property let to a couple and their friend can tip into licensable territory when the household mix changes — the test is the people in occupation, not what the tenancy agreement said on day one.
• Assuming "small" means "exempt." Additional and selective schemes routinely catch three- and four-person shares and single-family lets.
• Buying into a scheme mid-term. If you buy a property in a selective licensing area, the duty to licence transfers to you — inherited non-compliance is still your problem.
• Letting the licence lapse. The offence is being unlicensed when a licence is required, whether that's day one or the day after expiry.

The penalties for getting it wrong

Managing or letting a licensable HMO without a licence is a criminal offence. The council can choose how to enforce:

• Prosecution in the magistrates' court, which carries an unlimited fine.
• Or, as an alternative to prosecution, a civil penalty of up to £30,000 imposed directly by the council.
• A Rent Repayment Order on top, where a tenant or the council can reclaim up to 12 months' rent — including, in many cases, any Housing Benefit or Universal Credit paid.

There's a further sting worth knowing: while a property is unlicensed when it should be licensed, a landlord's ability to recover possession can be restricted, and the reputational record of a penalty follows you. (Sources: GOV.UK, "House in multiple occupation licence"; GOV.UK, "Rent Repayment Orders offences: guidance for tenants"; verified July 2026.)

What to do next

• Letting to 5+ sharers? Assume you need a mandatory licence and apply before tenants move in.
• Letting to 3–4 sharers, or any single let? Check the council for additional and selective schemes — don't assume you're clear.
• Already letting? Confirm your licence is current and that you're inside its occupancy limit and conditions.

HMO licensing sits alongside the other duties landing on landlords right now — the Renters' Rights Act, the EPC C (equivalent) target for 2030, and the annual safety checks. It's easy to lose track of which applies to which property.

Information, not legal advice. Dates and figures verified July 2026 against GOV.UK. England.