HMO licensing in Wales: mandatory everywhere, additional in ten councils

· 8 min read

HMO licensing is the one part of Welsh letting law that did not devolve away from England. Parts 2 and 3 of the Housing Act 2004 apply in Wales exactly as they do in England, which is why an English landlord reads this section and recognises it.

What changes is that it sits on top of Rent Smart Wales, not instead of it. A Welsh HMO landlord needs the licence and the registration, and if they manage the property themselves, the Rent Smart Wales licence too. Three obligations, three regimes, and none of them substitutes for another. See registration versus licensing.

Mandatory HMO licensing: all 22 Welsh councils

Five or more occupiers forming two or more households, sharing a basic amenity, needs a mandatory HMO licence. It is national and applies in every one of the 22 Welsh councils we hold a record for — we hold the mandatory position for all of them.

Additional HMO licensing: 10 of 22

Additional licensing, made under section 56 of the Housing Act 2004, extends licensing to smaller HMOs the mandatory regime misses — typically three or four occupiers in two or more households. It is a local designation, made council by council, and it is where Welsh landlords get caught.

10 of the 22 Welsh councils operate one. That is close to half, which is a far higher rate than England, and it means "my property is too small for a mandatory licence" is not a conclusion anywhere in Wales without checking the designation.

Each of those councils has its own page here with the designation, the dates and the source document. Scheme sizes vary enormously: some are county-wide, one covers two streets. A borough-wide assumption is as wrong as a two-street one.

Selective licensing: none confirmed

Wales has no confirmed selective licensing scheme in our records. That is a genuinely different picture from England and it is covered properly, with the honest caveat about what we have and have not established, in selective licensing in Wales.

What a Welsh HMO landlord actually needs

  1. Rent Smart Wales registration — every landlord, Housing (Wales) Act 2014 Part 1.
  2. A Rent Smart Wales licence — if you carry out lettings or management work yourself, rather than through a licensed agent.
  3. An HMO licence — mandatory if five or more occupiers in two or more households; additional if the council has designated and your property falls inside it.
  4. The written statement and everything else the Renting Homes (Wales) Act requires — see occupation contracts.

The penalties are the Housing Act ones

Because the HMO regime is the 2004 Act, the consequences are the English ones: an offence under section 72 for controlling or managing an unlicensed HMO, the section 249A civil penalty of up to £30,000 as an alternative to prosecution, and a rent repayment order of up to twelve months’ rent. Note that the fine on conviction is unlimited, not the figure legislation.gov.uk still prints.

Check your council’s position. Every Welsh council has a page here with its designation, dates and source. Browse the database.

Information tool, not legal advice.

Common questions

Do I need an HMO licence in Wales?

If five or more people in two or more households share a kitchen, bathroom or toilet, yes — mandatory HMO licensing applies in all 22 Welsh councils. For three or four occupiers it depends on whether your council has designated additional licensing, which 10 of the 22 have. You also need Rent Smart Wales registration regardless, and a Rent Smart Wales licence if you manage the property yourself.

How many Welsh councils have additional HMO licensing?

10 of 22. That is a much higher proportion than England, and the schemes vary from county-wide down to one covering two streets — so the size of a neighbouring scheme tells you nothing about yours.

Does Rent Smart Wales replace the HMO licence?

No, and this is the most common Welsh misunderstanding. They are separate regimes under separate Acts: Rent Smart Wales under Part 1 of the Housing (Wales) Act 2014, HMO licensing under Parts 2 and 3 of the Housing Act 2004. You need both.

What is the penalty for an unlicensed HMO in Wales?

The same as England, because it is the same Act: an offence under section 72 of the Housing Act 2004 carrying an unlimited fine on conviction, or a civil penalty of up to £30,000 under section 249A as an alternative, plus a rent repayment order of up to twelve months' rent.

Sources

Figures about our own council records are computed when this page is built, so they cannot drift from the database. Information tool, not legal advice.

Read next

Selective licensing in Wales: why there is none, and what to check instead6 min readRent Smart Wales: registration versus licensing, and who needs which7 min readAdditional HMO licensing explained: the scheme that catches small shared houses6 min readDo I need a licence for three tenants?6 min read

Check a specific property. Look up your council's licensing position across all 318 councils, run the free compliance check — five questions, no sign-up — or check a document with the tenancy agreement checker.

Landlord HQ uses AI to analyse legislation and tenancy agreements. While we work hard to ensure accuracy, AI can make mistakes. Always verify compliance requirements with a qualified solicitor. Landlord HQ is an information tool, not legal advice.

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