House in Multiple Occupation (HMO)
Let rooms individually to three or more unrelated tenants sharing facilities.
In plain English
Instead of renting a whole house to one family, you rent each bedroom separately to individuals who share the kitchen and bathroom. Total rent is usually higher, but so are the costs, the rules and the work involved.
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Capital requirements
Deposit of 25%+ plus conversion works (fire doors, alarms, en-suites), furnishing and licence fees; budget substantially more than a standard buy-to-let.
Cost assumptions to budget for
- Conversion and fire-safety works
- Licence fee (council-specific, typically multi-year)
- Bills (utilities, broadband, council tax)
- Higher management fees (often 12–18%)
- Furnishing and higher wear-and-tear
Potential returns
Higher gross rent per property, but net returns depend heavily on occupancy and bills. Check local room rents and supply.
Main risks
- Article 4 or licensing refusal
- Oversupply of rooms locally
- Higher tenant turnover and management load
- Bills inflation on bills-inclusive lets
- Valuation may be on bricks-and-mortar value only
Legal checks
- Planning status (C3/C4/sui generis) and Article 4 directions
- Mortgage and insurance must permit HMO use
- Leasehold or covenants may prohibit multiple occupation
Regulatory checks
- Mandatory HMO licence for 5+ occupiers forming 2+ households (England)
- Minimum bedroom sizes and amenity standards
- HMO management regulations and fire safety
- Protect deposits in a government-approved scheme within 30 days and serve the prescribed information.
- Right to Rent immigration checks (England).
- Annual gas safety check; electrical installation condition report at least every 5 years; smoke and carbon monoxide alarms.
- EPC of at least E to let (minimum energy efficiency standard). Higher future minimums have been proposed — check the current position.
- Tenancy law in England is being reformed by the Renters' Rights Act 2025 (including ending section 21 'no-fault' evictions). Check which provisions are in force on your start date.
- Selective or additional licensing may apply in some council areas.
Is it suitable?
Often suits
- Hands-on investors in strong room-rental markets
- Investors prepared to manage compliance
Usually not suitable for
- Passive investors
- Areas with Article 4 and no planning route
A general guide, not a personal recommendation. Suitability depends on your finances, experience and attitude to risk.
Step-by-step
- Check Article 4 and licensing schemes with the council.
- Validate room demand and rents (local agents, licensed listing data).
- Measure rooms against minimum sizes.
- Run the HMO calculator with bills and voids.
- Get HMO-specialist mortgage and insurance quotes.
- Apply for planning/licence before letting; complete fire-safety works.
- Set up management systems for tenancies, bills and inspections.
Financial calculations
HMO cashflow
- ⚠ 5 or more occupiers forming 2 or more households: a mandatory HMO licence is required in England.
- ⚠ Check for an Article 4 direction removing permitted development from C3 to C4 (small HMO) and whether 7+ occupiers needs sui generis planning permission.
Every figure above comes from the assumptions you entered. This is not a valuation, mortgage offer or financial advice.
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Official sources
- House in multiple occupation licence (GOV.UK)
- Use classes (Planning Portal)
- Renting out your property (GOV.UK)
- Renters' Rights Act 2025 — guidance (GOV.UK search)
- Tenancy deposit protection (GOV.UK)
Last reviewed 31 Oct 2026. Rules change — check the source before relying on this guide.
Not advice