Why £30,000 Fines Are Catching Out 'Accidental' HMO Landlords

You Might Already Be Running an HMO Without Knowing It

Most landlords picture an HMO as a large student house — six bedrooms, a shared bathroom, the kind of place that obviously needs a licence. That picture is dangerously out of date.

Under the Housing Act 2004, an HMO is any property occupied by three or more people from two or more separate households who share a kitchen, bathroom, or toilet. That's it. Three friends who aren't related, sharing your two-bed flat. A couple plus a single professional in a terraced house. A standard small-scale let that countless landlords run without a second thought.

Mandatory licensing — the national scheme — kicks in at five or more people. But mandatory licensing is only one layer. Councils across England can run their own additional licensing schemes covering three- and four-person HMOs. Over 70 councils now operate these schemes, according to data compiled by [letavo.com](https://letavo.com). If your property sits inside one of those designated areas, you need a licence regardless of how few tenants you have. And the list of councils running these schemes is growing every single month.

December 2024 Changed Everything — And Most Landlords Missed It

Before December 2024, councils wanting to introduce an additional licensing scheme had to seek central government approval. That approval step acted as a brake — slow, bureaucratic, but a brake nonetheless.

That requirement was removed in December 2024. Councils can now designate new additional licensing schemes without waiting for Whitehall to sign off. The practical effect: licensing creep is accelerating. Schemes that might have taken two years to push through are now moving in months.

Telford & Wrekin is a live example. On 27 May 2026 — three days before this article was written — the council confirmed a new additional licensing scheme for smaller three- and four-tenant HMOs, coming into force in August 2026. Around 60% of respondents backed the scheme during consultation, according to the council's own figures. An early-bird discount was offered for landlords who applied ahead of the deadline. That's a real deadline, in a real council area, arriving in weeks. It won't be the last.

If you own property in any mid-sized English town and haven't checked your council's licensing position recently, you're flying blind. Schemes can be designated and publicised with relatively short lead times. The obligation to hold a licence falls on you — councils are not required to write to every affected landlord individually.

The Penalties Are Not a Slap on the Wrist

Operating an unlicensed HMO is a criminal offence under section 72 of the Housing Act 2004. The consequences stack in three ways, and each one is painful on its own.

First, the civil penalty. Local authorities can issue a civil penalty of up to £30,000 per offence without a court conviction — the council serves a Notice of Intent, you can make representations, and the final notice is issued. Per offence. Per property. As [proplio.co](https://www.proplio.co/blog/hmo-licensing-landlords-letting-agents-uk) notes, there is no grace period on a lapsed licence: operating even one day after expiry is the same offence as never having applied. The Renters' Rights Act 2025, now in force, has increased the maximum civil penalty ceiling for serious PRS non-compliance to £40,000 for certain offences, according to [letsafeuk.co.uk](https://letsafeuk.co.uk/guides/renters-rights-act-civil-penalties-landlord-guide-2026).

Second, criminal prosecution. If the council pursues a magistrates' court route instead, the fine is unlimited. No cap.

Third, Rent Repayment Orders. Tenants in an unlicensed HMO can apply to the First-tier Tribunal for a Rent Repayment Order covering up to 12 months of rent paid. If your tenants are paying £800 a month each and there are four of them, that's up to £38,400 coming back out of your pocket — on top of any civil penalty. Under the Renters' Rights Act the RRO window can extend to 24 months in certain circumstances.

A real case that landed in the Upper Tribunal in 2026 illustrates how little sympathy the system has for 'I didn't know.' Dr Noshaba Khiljee, the owner of a property in Waltham Forest, received a £24,500 penalty (reduced to £19,600 on appeal) for operating an unlicensed HMO — even though she had engaged a management company that contractually promised not to let the property as an HMO. The Tribunal upheld the finding that she was a 'person having control' under s.263 of the Housing Act 2004. The management company's breach was not her defence, per [landmarkchambers.co.uk](https://www.landmarkchambers.co.uk/web-content/uploads/PDFs-documents-and-other-resources/Judgments-and-decisions/Khiljee-v-Waltham-Forest-LBC-2026-UKUT-171-LC.pdf).

Another case from May 2026 saw a Bedford landlord fail to overturn a £20,803 fine at tribunal — despite claiming he had no idea his property was being run as an HMO. The judge found his account 'lacked credibility,' per [landlordzone.co.uk](https://www.landlordzone.co.uk/news/landlord-who-slept-in-illegal-hmo-fails-to-overturn-ps20k-fine). 'I used a management company' and 'I didn't know' are not defences that are holding up in 2026.

What You Actually Need to Check — and How to Check It

There are three things worth doing right now if you own any shared property in England.

One: confirm whether your property meets the HMO definition. Three or more tenants from two or more households sharing any facility. If yes, move to step two.

Two: check whether your council runs a mandatory, additional, or selective licensing scheme — and whether your property sits inside a designated zone. Councils publish this on their websites, but the information is often buried. Some run interactive maps. Some require you to call. The position can change: a property outside a designated zone in 2024 might be inside one in 2026 after a new scheme is designated.

Three: check Article 4 directions. Separate from licensing, Article 4 directions remove permitted development rights and require planning permission to convert a property into an HMO. Some councils run both an Article 4 direction and a licensing scheme simultaneously. Buying a property in an Article 4 area without knowing it can kill your HMO strategy before it starts.

If you're doing due diligence before buying — which is the only sensible time to do this — you want to know the licensing and Article 4 status of a property before you exchange contracts, not after. [ZARSK](https://zarsk.co.uk) exists precisely for this: a constantly updated database of HMO properties and data across the UK, built so investors can assess what they're buying into before committing. It's the kind of location-level data that's genuinely hard to pull together from council websites alone.

And if you already hold a portfolio and are trying to refinance or free up equity — which is its own headache in the HMO space — the regulated finance partners at [zarsk.co.uk/finance-property](https://www.zarsk.co.uk/finance-property) specialise in exactly this. HMO mortgages are not straightforward products. Getting the wrong advice costs more than the licence fee ever would.

Licensing creep isn't slowing down. With the December 2024 deregulation of the designation process, every month brings new schemes in new council areas. The landlords who get caught aren't reckless — they're just operating on outdated assumptions about what their property is and what rules apply to it. The accidental HMO landlord of 2026 is often someone who bought a perfectly ordinary three-bed in 2021 and never revisited the question. The councils have. The tribunals have. At some point, 'I didn't realise' stops being an explanation and starts being a liability.