Buy-to-let versus HMO: what to consider

What each one is

Buy-to-let (BTL) usually means a home let to a single household, such as a family or a couple, on one tenancy agreement.

A house in multiple occupation (HMO) is generally a property let to at least three people who are not from one household and who share facilities such as a kitchen or bathroom. Rooms are often let individually. Whether a property counts as an HMO depends on the facts, so check the legal definition and the council's view for the specific property.

Neither is better in itself. They suit different circumstances, budgets and appetites for management work.

Who each may suit

• Buy-to-let may suit investors who want a simpler set-up, fewer tenancies to manage and a wider choice of lenders and properties.
• HMO may suit investors who are comfortable with more regulation, more hands-on management (or the cost of a specialist agent) and a property that genuinely works as a shared house.

Neither route produces a particular return. Rent, costs and void periods vary by property, area and management.

Key considerations

Management intensity

An HMO usually means more tenants, more turnover, shared-area upkeep and more compliance paperwork. A single-household let usually has fewer moving parts. Many investors use a managing agent for either; that is a cost to plan for.

Licensing

• Mandatory licensing applies in England to an HMO rented to 5 or more people forming more than one household who share facilities.
• Additional licensing (smaller HMOs) and selective licensing (other private lets) are discretionary schemes that individual councils can run in designated areas. Some councils cover the whole city, others only certain wards, and some run none.
• Operating without a required licence can lead to unlimited fines and other penalties.

Position varies by council and changes over time. Check the current rules on gov.uk and with the relevant council, such as Nottingham City Council, Leicester City Council and Derby City Council, before relying on any summary.

Planning and use class

• C3 is a dwellinghouse (a single household).
• C4 is a small HMO, broadly three to six unrelated people sharing.
• Sui generis (a category of its own) covers larger HMOs.

Some councils have made an Article 4 direction, which removes the usual permitted-development right to change from C3 to C4, so planning permission is needed. Nottingham, for example, publishes information on its Article 4 coverage. Check with the council for the city you are interested in. Ask the planning team about a specific address and confirm whether the property already has lawful HMO use.

Fire safety and property standards

HMOs face stricter physical requirements, such as fire detection, escape routes, door standards and room and amenity sizes, set through licence conditions, the Housing Health and Safety Rating System and local standards. Some councils publish their own minimum room sizes. A property that needs major alterations to comply can change the budget considerably.

Finance and valuation

Lenders treat the two differently. HMOs often need specialist lending, valuations may take a different approach, and lenders may require licences, planning evidence and experience. Terms vary by lender, so speak to an independent mortgage adviser. We do not recommend products.

Tenant demand

Demand depends on the location and the type of tenant. Areas close to universities, hospitals and transport links can attract student or professional sharers, but local supply, competition and regulation also matter. Look for current local evidence rather than assumptions, and remember that regeneration or an institution nearby does not automatically raise rents or values.

Questions to ask before deciding

1. Does the property layout genuinely suit sharing, or the single household?
2. Is a licence needed now, or may one be required in future?
3. What is the lawful planning use, and does an Article 4 direction apply?
4. What will compliance, management and void periods cost?
5. Will lenders accept the property and the use?