LetLens / Licensing by council / Hillingdon
Landlord licensing in Hillingdon
Mandatory HMO licensing applies across England, so a property in Hillingdon let to five or more people forming two or more households, who share a kitchen, bathroom or toilet, needs a licence. Hillingdon also runs additional HMO licensing, which can bring smaller HMOs, or every private rental, into licensing.
The licence you need turns on who lives in the property. Find the line that describes your let.
- Required by national lawThe same in all 296 English councils. Not a Hillingdon decision.
Your propertyLet to 5 or more people forming 2 or more households who share a kitchen, bathroom or toilet
You needMandatory HMO licence In force England-wide
It costs£1,656, the same for an HMO of any size
WhereEverywhere in Hillingdon, as everywhere in England. Scope, fee schedule and source
- What Hillingdon requires on topSchemes this council chose to run, and what differs from the council next door.
Your propertyA smaller shared house the national scheme does not reach, typically 3 or 4 sharers forming 2 or more households
You needAdditional HMO licence In force
It costs£1,401, the same for an HMO of any size
WhereEverywhere in Hillingdon. Scope, fee schedule and source
Your propertyLet privately inside a designated area, whether or not it is an HMO
You needNo selective licence No scheme
- Planning permission, a separate questionNot licensing. Whether you may create an HMO at all, decided by the council’s planning side.
Your planConverting a house (use class C3) into a small HMO (use class C4)
You needPlanning permission In force
WhereInside the designated area: the whole council area. There is no part of the council outside it. The direction, its dates and its boundary
Each fee is for the example property named on its own line, from the council’s published schedule. The full schedules, discounts and surcharges are below.
Or open UB10 9EH, a postcode near the centre of Hillingdon, to see what a full report looks like.
Each scheme in detail, and the evidence behind it
Which properties each scheme catches in Hillingdon, in the council’s own words, with the designations in force, the whole published fee schedule and the source for every figure. The three regimes can stack: a property can need a licence under one and still be caught by another.
Mandatory HMO licensing In force England-wide
Licence fee, any size£1,656
- Where it applies
- National scheme
- Which properties
- 5 or more unrelated occupants forming 2 or more separate households, sharing a toilet, bathroom or kitchen
The published fee schedule
- Fee
- £1,656
- Paid in two parts
- £1,104 on application, then £552 when the licence is granted
- Licence term
- Up to 5 years
- Fee schedule dated
- 2026/27
Additional HMO licensing In force
Licence fee, any size£1,401
- Where it applies
- Council-wide
- Which properties
- Smaller (section 254) HMOs occupied by 3 or 4 people from 2 or more households sharing facilities, that fall outside mandatory HMO licensing; section 257 HMOs are excluded
- Designations in force
- Additional Licensing Scheme for Houses in Multiple Occupation (London Borough of Hillingdon) 2026
- Designation period
- 24 August 2026 to 24 August 2031
The published fee schedule
- Fee
- £1,401
- Paid in two parts
- £934 on application, then £467 when the licence is granted
- Licence term
- Up to 5 years
- Fee schedule dated
- 2026/27
Discounts
- Accredited landlord (e.g. London Landlord Accreditation Scheme); CONFLICT - Oct 2025 proposed fee schedule states GBP 50 off (deducted from Part 2), council Feb 2026 news states '10 per cent reduction' (~GBP 140.10). Unresolved; verify at scheme launch.: £50
Selective licensing No scheme
Article 4 and HMO planning permission in Hillingdon In force
An HMO Article 4 direction is in force in Hillingdon covering the whole council area, so the permitted-development right to convert a house (C3) into a small HMO (C4) has been removed and planning permission is needed there. Every one of Hillingdon's 6,166 postcodes is inside a designated area.
HMO Article 4 direction, the whole council area
- Area
- the whole council area
- Right removed
- C3 to C4 (small HMO)
- Made
- 10 December 2025
- Confirmed
- 21 May 2026
- In force from
- 11 December 2025
A licence is not planning permission
These are two separate consents from two separate parts of the council, and getting one does not give you the other. A licensing team can grant an HMO licence for a property that needed planning permission and never got it.
Where the permission was needed and is missing, the usual consequence lands on the licence. Councils commonly grant a short licence, often twelve months rather than the full term, to give the owner time to apply. If permission is not applied for, is refused, or an appeal fails, the council will generally refuse to extend and let the licence expire, and will generally refuse a fresh application outright once permission has been finally refused. At that point the property cannot lawfully be let as an HMO at all.
This is council practice rather than a statutory rule, and it varies, so confirm it with Hillingdon before you rely on it. Nottingham City Council publishes its version explicitly and is quoted here as a worked example of the approach.
The research note behind this verdict
What happens if you let without a licence
Letting or managing an unlicensed property that needs a licence is a criminal offence, under section 72 of the Housing Act 2004 for an HMO and section 95 for a property caught by selective licensing. A council can prosecute, or impose a civil penalty instead. For conduct on or after 1 May 2026 that penalty can be up to £40,000 per offence, raised from £30,000 by the Financial Penalties (Housing Offences and Breach of Banning Orders) Regulations 2026. Tenants and the council can also apply for a rent repayment order, which for conduct from the same date can claw back up to two years of rent, up from one, under section 103 of the Renters' Rights Act 2025.
Both of those maxima apply only to conduct on or after 1 May 2026. Earlier conduct is still judged against the old £30,000 and twelve-month limits. Each breach is normally penalised separately, so an unlicensed portfolio in Hillingdon multiplies the exposure rather than capping it.
The letting market in Hillingdon
Licensing is only one side of the sum. These are medians from real listings we have collected, with the number of listings behind each one, because a median over a handful of adverts is a different claim from a median over hundreds.
- Median room rent£792 pcmFrom 855 room listings in Hillingdon.
- Median whole-property rent£1,659 pcmFrom 263 whole-property listings.
- Typical 4-bed rent£2,736 pcmThe comparison a room-by-room let is measured against.
- HMO income premium+45%Five rooms let individually against one four-bedroom whole-property let, before the extra cost, licensing and voids that come with an HMO.
- Median sale price£494,000Across 558 sales in 2026, all property types, HM Land Registry.
- Gross yield, whole let4.0%Median whole-property rent for a year against the median sale price. Before voids, management, repairs, licensing and finance, all of which a real return has to carry.
- Gross yield, 5-room HMO9.6%Five rooms at the median room rent against the same median sale price. The higher figure is what pays for the licence, the extra management and the higher voids, rather than being profit on top of them.
- Typical household income£51,502Mean of net small-area median incomes around the council's main listing areas, not a council-wide median.
- Postcodes with flood exposure4.0%246 of 6,166 indexed postcodes.
- Postcodes in Flood Zone 384 (1.4%)The Environment Agency's highest-probability zone. Lenders and insurers ask about this one by name, and it is a subset of the exposure above.
Room rent by outcode
Room rent varies by £85 a month across Hillingdon’s outcodes, so the council-wide median above is a starting point rather than the answer for a particular street.
| Outcode | Median room rent | Room listings | Check a postcode |
|---|---|---|---|
| UB3 | £835 pcm | 212 | Check UB3 |
| HA4 | £800 pcm | 68 | Check HA4 |
| UB8 | £790 pcm | 201 | Check UB8 |
| UB7 | £750 pcm | 157 | Check UB7 |
| UB4 | £750 pcm | 107 | Check UB4 |
Postcode districts in Hillingdon
Licensing, Article 4 and the fee all turn on the exact address, because a designated area rarely follows the council boundary. LetLens holds 6,166 Hillingdon postcodes. Open one of its postcode districts to see the verdict, the local rent evidence and the investment model.
Common questions
Do I need an HMO licence in Hillingdon?
Mandatory HMO licensing applies across England, so a property in Hillingdon let to five or more people forming two or more households, who share a kitchen, bathroom or toilet, needs a licence. Hillingdon also runs additional HMO licensing, which can bring smaller HMOs, or every private rental, into licensing. Additional HMO licensing applies across the whole council.
How much does an HMO licence cost in Hillingdon?
£1,656 under the mandatory scheme, from the council's published fee schedule. The council charges the same whatever the size of the HMO. Any additional or selective scheme is priced separately.
Is there an Article 4 direction in Hillingdon?
An HMO Article 4 direction is in force in Hillingdon covering the whole council area, so the permitted-development right to convert a house (C3) into a small HMO (C4) has been removed and planning permission is needed there. Every one of Hillingdon's 6,166 postcodes is inside a designated area.
What is the penalty for letting an unlicensed property in Hillingdon?
Letting or managing a property that needs a licence without one is a criminal offence under the Housing Act 2004. The council can prosecute or impose a civil penalty, which for conduct on or after 1 May 2026 can be up to £40,000 per offence, raised from £30,000 by the Financial Penalties (Housing Offences and Breach of Banning Orders) Regulations 2026. Tenants or the council can also seek a rent repayment order covering up to two years of rent for conduct from that date, up from one year, under section 103 of the Renters' Rights Act 2025. Each breach is normally penalised separately. Indicative only, not legal advice.
Do I need planning permission for an HMO in Hillingdon?
Where an Article 4 direction applies, yes: it removes the permitted-development right to change a house (use class C3) into a small HMO (use class C4), so that change needs a planning application. An HMO for seven or more residents needs permission anywhere, Article 4 or not. Planning is separate from licensing, and a licence does not give you permission. Where permission was needed and not obtained, councils commonly grant a licence for about twelve months rather than the full term, and generally refuse to extend it if permission is not then granted, which leaves the property unable to be let as an HMO. Practice varies by council, so confirm it with Hillingdon.
Can I convert a house into a small HMO in Hillingdon without planning permission?
Not inside the Article 4 area. The direction removes the permitted-development right, so a change of use from C3 to C4 needs a planning application. The direction covers the whole of Hillingdon, so there is no part of the council where the right still applies.
About Hillingdon
Hillingdon is a local housing authority in London, with a population of about 309,000 and 6,166 live postcodes indexed by LetLens. It is the licensing authority for every private rented property inside its boundary, and the local planning authority that decides whether an Article 4 direction applies.
Nearby councils
Licensing stops at the council boundary, so a street on the other side of it can carry a different scheme and a different fee.