House in Multiple Occupation licensing is one of the most misunderstood areas of UK landlord compliance. Many landlords with large shared houses do not realise their property falls within the mandatory licensing threshold. Others operating smaller shared houses in areas with additional or selective licensing schemes need a licence but are unaware their local authority operates one. braintree

This edition covers the three types of licensing, who they apply to, what conditions a licence carries, what it costs, and what happens if you're operating without one — including a penalty increase that came in on 1 May 2026 that most landlords haven't heard about.

An HMO — House in Multiple Occupation — is a property occupied by three or more people from two or more separate households who share facilities such as a kitchen or bathroom. LandlordBuyer

The household distinction is critical. Five unrelated sharers in a house is an HMO. A family of five — parents, children, blood relatives — sharing the same house is not. The relationship between occupiers, not the number of them, determines whether the HMO definition applies.

This is where most landlords get confused. There isn't one HMO licensing scheme — there are three, and they operate simultaneously in overlapping layers.

Mandatory licensing — applies nationally

Mandatory HMO licensing under the Housing Act 2004 applies to any HMO that has five or more occupants from two or more separate households. There is no minimum number of storeys — a single-storey bungalow shared by five unrelated people needs a mandatory licence. braintree

The HMO Licensing Order 2018 removed the storey requirement, widening the scope. Around 220,000 properties now fall under mandatory licensing in England. NRLA

If your property meets the five person, two household test — you need a mandatory licence. Full stop. There is no council discretion and no opt-out.

Additional licensing — council by council

Additional licensing is a discretionary scheme that a local authority can introduce to extend licensing requirements to smaller HMOs — typically three or four occupants — or to all HMOs in defined areas where mandatory licensing does not apply. NRLA

Areas with active additional licensing schemes include parts of London, Birmingham, Manchester, Leeds, Bristol, Brighton, Newcastle, and many other cities. The schemes are typically renewed every five years, so areas can come in and out of additional licensing. Property118

If your property has three or four sharers — you may need a licence depending entirely on which council area it's in. The only way to know is to check your specific local authority's website.

Selective licensing — applies to all rental properties

Selective licensing is a council-area scheme that catches all privately rented properties in a designated area — HMO or not. The Independent Landlord

As of 2026, over 60 local authorities operate selective licensing schemes in parts of their area. Notable examples include areas within Liverpool, Nottingham, Salford, Waltham Forest, and Newham. Landlords operating in these areas must hold both a selective licence and, if applicable, an HMO licence. LandlordBuyer

The selective licensing trap catches landlords who don't think of themselves as HMO landlords at all. If your single-let family home sits in a selective licensing area — you need a licence.

The overlap problem

A single property can need both an additional HMO licence and a selective licence at the same time if it sits in two overlapping designations. The conditions of each have to be met, and the fees stack. The Independent Landlord

Licence fees are set by each council and vary widely. They must reflect the council's actual costs in administering the scheme. Most councils split the fee into an application fee — non-refundable if refused — and a grant fee payable on issue. NRLA

Selective licence fees typically range from £350 to £900 per property for a five-year licence. LandlordBuyer

Mandatory HMO licence fees vary more widely — from around £500 in some areas to over £1,500 in parts of London. Some councils offer discounts for accredited landlords. Always check the specific fee for your council before budgeting.

Every licence applicant must satisfy the council that they are a fit and proper person. The council will check for unspent criminal convictions relating to fraud, dishonesty, violence, drugs, or sexual offences. Agents named on a licence also need to pass this test. A poor track record with one council can affect applications to others, as authorities increasingly share data. LandlordBuyer

National minimum bedroom sizes for HMOs were introduced in October 2018 and remain a condition of every mandatory HMO licence. Goodlord

The minimum sizes are:

Where a room fails to meet the minimum size, local authorities must impose a licence condition prohibiting its use as sleeping accommodation, or requiring it to be used only by a child under ten. Landlords are required to notify the local authority of any room below 4.64 square metres within two months of obtaining their licence. Goodlord

Some councils — particularly in London — apply room size standards that exceed the national minimums. Always verify requirements with your specific local authority. Goodlord

An HMO licence lasts up to five years, but councils may grant shorter periods if there are concerns about management or outstanding works. There is no automatic renewal — landlords must reapply before expiry. Operating after expiry is the same offence as never having had a licence. NRLA

If a valid application is submitted before expiry, the licence is treated as continuing during the determination period. This is important for Rent Repayment Order defences. NRLA

The renewal point is one of the most common compliance failures. Landlords who obtained licences in 2019 or 2020 need to be renewing now — and many haven't realised.

Failure to obtain the correct licence is a criminal offence. Local authorities can issue rent repayment orders, forcing landlords to repay up to 12 months' rent to tenants or the local authority. LandlordBuyer

Since 1 May 2026, the civil penalty increased. As an alternative to prosecution, the local authority can issue a civil penalty notice of up to £40,000 per offence. The maximum civil penalty for offences committed before 1 May 2026 was £30,000. The Independent Landlord

Multiple offences can be charged simultaneously. A landlord who operates an unlicensed HMO with overcrowding and licence condition breaches could face separate penalties for each offence, with combined fines potentially exceeding £90,000. www

The criminal route carries an unlimited fine via the magistrates' court and — critically — a criminal record. Landlords convicted of failing to licence an HMO may be issued a banning order prohibiting them from letting property. Goodlord

The Rent Repayment Order risk

If you operate an HMO without the required licence, your tenants can apply to the First-tier Tribunal for a Rent Repayment Order. An RRO can require you to repay up to 12 months of rent paid during the period the property was unlicensed. The local authority can also apply for an RRO on its own behalf to recover any housing benefit paid. Rent Repayment Orders are in addition to any criminal fine or civil penalty — they are a separate financial consequence. www

A tenant in a £700-a-room HMO can hand the landlord a £33,600 bill across five rooms, and a council can stack £40,000 on top. The Independent Landlord

The Section 8 connection

Under the post-Renters Rights Act regime, serving a valid Section 8 possession notice requires that the property is properly licensed. NRLA

Just as with deposit non-compliance — an unlicensed HMO blocks your only possession route. With Section 21 gone, this is the same possession-critical risk we covered last edition in a different context.

Applying retrospectively doesn't help

Applying for a licence retrospectively does not cure the breach. The period of unlicensed operation remains an offence, and rent paid during that period is potentially recoverable. NRLA

In Article 4 areas, changing a property from C3 residential use to C4 HMO use requires full planning permission. Outside Article 4 areas, the change is usually permitted development for small HMOs of up to six people. HMOs of seven or more people are sui generis and need planning permission anywhere in the country. The licence and the planning consent are independent — you can have one without the other, and you need both. The Independent Landlord

Three questions to ask yourself for each property:

1. Does it meet the HMO definition?
Three or more people from two or more households sharing facilities. If yes — proceed to question two.

2. Does it meet mandatory licensing threshold?
Five or more occupants from two or more households. If yes — mandatory licence required, no council discretion.

3. Does your council run additional or selective schemes?
Search your council name plus "HMO licensing" and "selective licensing." Check the maps. If your property is in a designated area — licence required regardless of occupant numbers.

✅ Check whether your property meets the HMO definition — three or more unrelated people from two or more households sharing facilities

✅ Check mandatory licensing — five or more occupants from two or more households means a mandatory licence regardless of council area

✅ Check your council's additional licensing schemes — three or four occupant HMOs may be licensable depending on your specific local authority

✅ Check selective licensing in your area — even a single-let property may need a licence in a designated area

✅ Check your licence renewal date — operating after expiry is the same offence as never having had one. Licences granted in 2019-20 are expiring now

✅ Check room sizes — every bedroom must meet the national minimum standards. A room below 4.64 square metres cannot be used as sleeping accommodation at all

✅ Check Article 4 directions — if you're converting a property to HMO use in an Article 4 area you need planning permission as well as a licence

✅ Budget for fees — £350 to £900 for selective licences, higher for mandatory HMO licences. Fees stack if you need multiple licences for one property

✅ Don't apply retrospectively and assume it cures the breach — the unlicensed period remains an offence and rent paid during it is potentially recoverable via RRO

HMO licensing is not a single national scheme with simple rules. It is a layered system of mandatory, additional and selective requirements that varies by council area, changes as schemes expire and renew, and carries penalties that have increased significantly since 1 May 2026.

Letting without a required licence can lead to a Rent Repayment Order of up to 12 months' rent, an unlimited fine and a banning order. Combined with the Section 8 possession block — the consequences of operating unlicensed are now more serious than at any point in the history of HMO licensing. Thebla

The landlords at risk are not just those running large shared houses without a licence. They are also the landlords whose licences are quietly expiring, the landlords who moved into areas with new selective schemes without checking, and the landlords who assumed their three-bedroom shared house didn't need a licence because it didn't hit the mandatory threshold.

Track HMO licence numbers, issue dates, expiry dates and renewal reminders alongside all your other compliance documents — across your entire portfolio in one place.

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Coming up next edition — The PRS Database: what it is, when it comes and what landlords need to do before it launches.

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