Hillingdon Additional HMO Licensing: What Landlords Need to Know
Hillingdon has no selective licensing scheme. What came into force on 24 August 2026 is an additional HMO licensing scheme covering all 21 wards, from just three occupiers. Most of the landlords it catches do not believe they run an HMO.
Scheme facts last reviewed
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If you are an overseas landlord
The licence holder named on a Hillingdon HMO licence stays personally responsible for every condition, wherever they live. Notices are validly served on the address on your application whether or not you read them, and a quarterly inspection cycle is difficult to evidence from abroad without a competent UK-based manager in place. The guide sets out what to have arranged before the council asks.
What Hillingdon additional HMO licensing requires
Hillingdon does not operate a selective licensing scheme. Its additional HMO licensing designation covers the whole borough, all 21 wards, and applies to any house or flat occupied by three or more people forming two or more households who share or lack a toilet, bathroom or kitchen. There is no ward to check and no upper limit on occupiers. The test is about who lives in the property, not where it sits or how big it is.
- Area
- The whole London Borough of Hillingdon, all 21 wards. No ward list to check.
- Trigger
- Three or more people forming two or more households, sharing or lacking a toilet, bathroom or kitchen. Applies to purpose-built flats as well as houses.
- Fee
- £1,401 per property for the five-year term (£934 on application, £467 on grant).
- Term
- In force 24 August 2026, ceases 23 August 2031 (five years).
Since 27 November 2025, Hillingdon requires planning permission to convert a family home into a three-person-or-more share anywhere in the borough. Holding an HMO licence does not satisfy this. The two regimes are enforced separately, and a landlord can be correctly licensed and still in planning breach.
Sources: Hillingdon Council HMO licensing pages; London Borough of Hillingdon Notice of Designation of an Area for Additional Licensing of Houses in Multiple Occupation, made 19 February 2026. Verify scheme facts against Hillingdon Council on the go-live date.
A licence and a compliance record are not the same thing.
Hillingdon does not only check whether you hold a licence. Its conditions require a documented inspection at a minimum of every quarter, not the six-monthly cycle landlords often import from other boroughs, plus a timed anti-social behaviour procedure, a display pack inside the property, and records of every tenancy change.
If you cannot produce the record, then as far as the council is concerned, it never happened. Hillingdon can ask any named licence holder for that evidence at any point across the full five-year term.
In regulated environments, compliance is not what you do. It is what you can prove.
Most landlords are not failing to do the right things. They are failing to record that they did. And in Hillingdon the cost of that gap is priced explicitly: the council's own enforcement policy sets a starting point of £5,000 per licence condition breached, on top of penalties of up to £40,000 for operating without a licence at all. Our free guide covers the conditions Hillingdon enforces, the ones landlords most often miss, and exactly what evidence the council expects to see.
Hillingdon Additional HMO Licence Compliance Guide 2026
This is not a selective licence. It is an HMO licence, and it starts at three people.
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- Every licence condition Hillingdon enforces, in plain English
- The conditions landlords most commonly miss, including the quarterly inspection rule
- A ten-question stress test to see where you may be exposed
- Hillingdon's own charging schedule, so you can price the risk
The expertise behind the evidence, not just a place to store it.
We chase the renewal before it lapses
Certificates, inspections and reference checks tracked and actioned ahead of time, so a deadline never slips past you. Not a reminder you have to act on yourself.
A complete file, ready when Hillingdon Council asks
A timestamped record for every obligation on every property. Software can store documents. It cannot tell you what is missing, or what Hillingdon Council will actually want to see. We do that.
A named expert who answers for it
A real compliance function that stands behind your record, registered with a Property Redress Scheme and insured. Not a portal, and not a favour from a friend.
When Hillingdon Council asks for a property's compliance history, you forward one file and get on with your day.
Why we built Compliance Shield.
“Compliance in a regulated sector is not about good intentions. It is about being able to prove what you did, on the day someone asks. We built Compliance Shield to give landlords that certainty.”
Hillingdon additional HMO licensing, answered
Find out where you stand before Hillingdon does.
Start with the free guide. It takes ten minutes and shows you exactly where you may be exposed.
Prefer to talk it through? Speak to our team about managing your compliance from £80 per month per property.