What Is the Difference Between an HMO Licence and HMO Planning Permission?

June 8, 2026

Author: Thomas Abram, Group Marketing Executive
Last reviewed: 8 June 2026

Quick answer

The difference between an HMO licence and HMO planning permission is that an HMO licence relates to how safely and legally a shared rented property is managed, while HMO planning permission relates to whether the property is allowed to be used as an HMO in planning terms.

An HMO licence is usually dealt with by the council’s private sector housing or licensing team. It looks at matters such as the number of occupants, the number of households, room sizes, fire safety, facilities, waste arrangements, and whether the landlord or manager is suitable to hold a licence.

HMO planning permission is dealt with by the council’s planning department. It looks at whether the use of the building as an HMO is acceptable in that location, taking into account planning policy, amenity, parking, housing mix, local concentration of HMOs, and whether an Article 4 direction removes permitted development rights.

In practical terms, a property may need one, both, or neither, depending on the number of occupants, the local authority area, the property’s planning use, and the council’s licensing schemes.

Why this distinction matters

For landlords, property investors, letting agents, and homeowners, HMOs can be attractive because they often provide flexible accommodation for tenants and stronger rental yields for property owners. They also sit within a more regulated part of the private rented sector, which means the compliance checks need to be done properly before a property is purchased, converted, advertised, or occupied.

One of the most common misunderstandings is assuming that an HMO licence and HMO planning permission are the same thing. They are not. They sit under different legal regimes, they are assessed by different council teams, and they answer different questions.

An HMO licence asks: is this property safe, suitable, and properly managed for the number of people living there?

HMO planning permission asks: is this property allowed to be used as an HMO in this location?

That difference can affect whether a deal stacks up, whether a conversion can proceed, whether a property can be lawfully occupied, and whether future buyers or lenders are likely to raise concerns.

What is an HMO?

In England, an HMO is generally a property rented by at least three people who are not from one household and who share facilities such as a kitchen or bathroom. A household normally means a single person, a couple, or members of the same family living together.

Common examples include shared houses, student lets, professional house shares, bedsit-style accommodation, and some converted buildings. The exact compliance position depends on the layout, occupation, tenancy structure, facilities, and local council rules.

It is worth being careful here. A property can be an HMO for housing law purposes even where the planning position is more complicated. The same property can sit within one category for licensing and another category for planning.

What is an HMO licence?

An HMO licence is a licence from the local housing authority that allows a landlord or property manager to operate a licensable HMO. It is mainly concerned with housing standards, safety, overcrowding, and management.

Mandatory HMO licensing applies in England where an HMO is occupied by five or more people, forming two or more households, and the occupiers share facilities such as a kitchen, bathroom, or toilet. Since the 2018 reforms, mandatory licensing is not limited to properties with three or more storeys.

Some councils also operate additional licensing schemes. These can bring smaller HMOs, often properties with three or four occupiers from two or more households, into licensing. A landlord should not assume that a property below the mandatory licensing threshold is automatically outside licensing. The correct check is always with the local council.

What does an HMO licence usually assess?

An HMO licence application usually considers whether the property and the proposed management arrangements are suitable. This can include:

• The number of occupants and households
• Bedroom sizes and permitted occupancy
• Kitchen, bathroom, and toilet facilities
• Fire doors, alarms, escape routes, and fire precautions
• Waste storage and disposal arrangements
• General property condition and hazards
• Whether the proposed licence holder is fit and proper
• Management arrangements for repairs, tenant issues, and communal areas

The licence may include conditions. These conditions matter because they can limit how many people may live in the property, how certain rooms can be used, and what the licence holder must do to keep the property compliant.

What is HMO planning permission?

HMO planning permission is approval from the local planning authority for the use of a property as an HMO, where planning permission is required. Planning focuses on land use, not just internal safety standards.

In England, ordinary residential homes usually fall under Use Class C3. Small HMOs for three to six residents fall under Use Class C4. Larger HMOs, usually those occupied by seven or more residents, are treated as sui generis, which means they fall outside the standard use classes.

In many areas, changing a normal dwellinghouse from C3 to a small C4 HMO can be permitted development. That means a full planning application is not usually required. However, this changes where the local council has introduced an Article 4 direction that removes that permitted development right.

Where an Article 4 direction applies to C3 to C4 changes, a landlord will usually need planning permission before converting a house into a small HMO. Larger HMOs, usually seven or more occupiers, generally need planning permission because they fall into sui generis use.

What does HMO planning usually assess?

A planning application for an HMO may look at different issues from a licence application. The council may consider:

• Whether the HMO would affect the character of the area
• Whether there is already a high concentration of HMOs nearby
• Parking pressure and transport impact
• Noise, disturbance, and neighbour amenity
• Refuse storage and external appearance
• Internal layout where it affects amenity or planning standards
• Local planning policies on housing mix and community balance
• Whether the property has lawful existing use as an HMO

A property may meet licensing standards and still be refused planning permission. Equally, a property may have planning permission but still fail to meet the council’s HMO licensing requirements. This is why both checks need to be made separately.

HMO licence vs HMO planning permission, the key difference

The simplest way to understand the difference is this:

An HMO licence is about operating the property safely and lawfully as rented shared accommodation.

HMO planning permission is about whether the property is allowed to be used as an HMO in that place.

The licence does not automatically grant planning permission. Planning permission does not automatically grant an HMO licence. They are separate approvals, even though they may relate to the same property.

Do you need both an HMO licence and planning permission?

Sometimes, yes. A property can need both.

For example, a five-bedroom HMO in an Article 4 area may need planning permission for the change from C3 to C4, and it may also need a mandatory HMO licence because five people from two or more households are living there.

A seven-bedroom HMO is likely to need planning permission because larger HMOs are usually treated as sui generis. It may also need a mandatory HMO licence if occupied by five or more people forming two or more households.

A four-bedroom HMO in a council area with additional licensing may need a licence even if it does not require planning permission. If the same property is in an Article 4 area, it may also need planning permission.

A three-person HMO outside an Article 4 area and outside any additional licensing scheme may not need a licence or planning permission, although it may still need to comply with HMO management regulations, fire safety expectations, housing health and safety standards, tenancy law, and local requirements.

Common scenarios for landlords and investors

Scenario 1: A house will be let to three unrelated tenants

A property let to three unrelated people sharing a kitchen or bathroom may be an HMO. Whether it needs a licence depends on the local council’s licensing schemes. Whether it needs planning permission depends on the existing use, whether it falls within C4 use, and whether an Article 4 direction applies.

This is a common scenario where landlords make mistakes because the property may feel like a normal house share. The correct approach is to check both licensing and planning before tenants move in.

Scenario 2: A house will be let to five unrelated tenants

A five-person HMO usually falls within mandatory HMO licensing if the occupiers form two or more households and share facilities. Planning will depend on whether it is a small C4 HMO, whether the area has an Article 4 direction, and whether the property already has lawful HMO use.

In many cases, this is where both licensing and planning checks become especially important. A landlord should not wait until the property is occupied before checking the licence position.

Scenario 3: A property will be converted into a seven-bedroom HMO

A seven-bedroom HMO usually raises both planning and licensing issues. Planning permission is generally required because the property is likely to fall into sui generis use. Mandatory HMO licensing is also likely to apply where five or more people from two or more households will occupy the property.

This type of project should be checked carefully at acquisition stage. Layout, room sizes, amenity space, fire safety, bin storage, parking, and local HMO concentration policies can all affect viability.

Scenario 4: A landlord has an HMO licence but no planning permission

An HMO licence does not prove that the property has the correct planning status. This can become a problem during enforcement, refinancing, sale, or a future licensing renewal.

If the property is in an Article 4 area, or if it has more than six occupiers, the planning position should be reviewed. Evidence of lawful use may be relevant in some cases, especially where the property has operated as an HMO for a long period, but this should be assessed properly before relying on it.

Scenario 5: A landlord has planning permission but no HMO licence

Planning permission does not remove the need for an HMO licence. If the property meets mandatory licensing criteria, or if it falls under an additional licensing scheme, the licence must still be obtained.

This is one reason landlords should avoid treating planning consent as the final compliance step. Planning consent may allow the use, but licensing controls whether the property can be occupied as a licensable HMO.

What is an Article 4 direction?

An Article 4 direction is a planning tool that allows a local planning authority to remove certain permitted development rights in a defined area. For HMOs, councils often use Article 4 directions to remove the permitted development right that would otherwise allow a change from a C3 dwellinghouse to a C4 small HMO without a full planning application.

Article 4 directions are common in areas where councils are concerned about high concentrations of HMOs, pressure on parking, waste issues, changes to housing mix, or impacts on local communities. They are often found in university towns, parts of London, and areas with strong investor demand for shared accommodation.

The important point is that Article 4 does not mean HMOs are banned. It means a planning application may be required. The council will then assess the proposal against local planning policy.

How to check whether a property needs HMO planning permission

A sensible planning check should include the following:

1. Confirm the current lawful use of the property.
2. Confirm the proposed number of occupiers.
3. Identify whether the use would be C4 or sui generis.
4. Check whether the property sits inside an Article 4 direction area.
5. Review the council’s HMO planning policy.
6. Check local thresholds for HMO concentration, if applicable.
7. Review the property’s planning history.
8. Consider whether a lawful development certificate is needed.
9. Seek planning advice where the position is unclear.

The local planning authority is the key source for property-specific planning checks. National guidance can explain the framework, but local policy often determines the practical answer.

How to check whether a property needs an HMO licence

A sensible licensing check should include the following:

1. Confirm how many people will live at the property.
2. Confirm how many households they form.
3. Confirm whether facilities are shared.
4. Check whether mandatory licensing applies.
5. Check whether the council operates additional licensing.
6. Review local HMO amenity standards.
7. Check room sizes and proposed occupancy limits.
8. Review fire safety requirements and management duties.
9. Submit the licence application before operating a licensable HMO.

Landlords should also check whether selective licensing applies in the area. Selective licensing is different from HMO licensing, but it can still affect private rented properties in certain council areas.

Why local council checks are essential

HMO rules are not applied in exactly the same way in every council area. Mandatory licensing is national in scope, but additional licensing, planning policy, Article 4 directions, amenity standards, documentation requirements, fees, and local enforcement priorities can differ significantly.

This is why broad online guidance should be used as a starting point, not a substitute for property-specific checks. A property that works in one borough may not work in another. A layout that passes one council’s expectations may need changes in another area.

For investors, this local variation should form part of due diligence before exchange, refurbishment, or tenant placement. The safest approach is to check the licensing team and planning team separately because they may give different answers to different questions.

What can happen if the checks are missed?

Missing either requirement can create serious problems. Operating a licensable HMO without the correct licence can lead to enforcement action, financial penalties, prosecution, rent repayment orders, and restrictions on certain possession processes.

Using a property as an HMO without required planning permission can lead to planning enforcement action. It can also create issues when selling, refinancing, or proving lawful use.

The commercial impact can be just as important as the legal risk. A landlord may need to reduce occupancy, carry out remedial works, apply retrospectively, pause lettings, or adjust the investment plan. In some cases, the property may no longer achieve the expected rental return.

Practical due diligence before buying or converting an HMO

Before buying or converting a potential HMO, it is worth building a simple evidence file. This can help with internal decision-making, lender queries, professional advice, and future resale.

The file should ideally include:

• The property address and local authority
• Current floor plan and proposed layout
• Current lawful planning use
• Proposed number of occupiers
• Proposed number of households
• Confirmation of whether Article 4 applies
• Local HMO planning policy and concentration thresholds
• Licensing scheme checks, including mandatory and additional licensing
• Room size measurements
• Fire safety considerations
• Waste storage arrangements
• Planning history records
• Any pre-application advice or council correspondence
• Professional advice from a planning consultant, licensing adviser, architect, or solicitor where needed

This approach helps prevent one of the most expensive mistakes in HMO investing: assuming the property is compliant because another similar property nearby appears to be operating as an HMO.

HMO licence and planning permission checklist

Use this checklist as an initial guide before progressing an HMO project.

Question	Why it matters
How many people will live at the property?	Occupancy affects both licensing and planning use.
How many households will they form?	HMO status depends on household composition.
Will occupiers share facilities?	Shared kitchens, bathrooms, or toilets can bring the property within HMO rules.
Is the property C3, C4, or sui generis?	Planning use class affects whether permission may be needed.
Is the property in an Article 4 area?	Article 4 can remove C3 to C4 permitted development rights.
Does mandatory HMO licensing apply?	Five or more occupiers from two or more households usually triggers mandatory licensing.
Does additional licensing apply?	Some councils require smaller HMOs to be licensed.
Do the rooms meet local and national size expectations?	Licensing may restrict occupancy where rooms or facilities are unsuitable.
Are fire safety and management arrangements adequate?	These are central to HMO licensing and safe operation.
Has the council confirmed the position?	Local rules vary, so council checks are essential.

Frequently asked questions

Is an HMO licence the same as planning permission?

No. An HMO licence and HMO planning permission are separate. A licence relates to housing standards, safety, and management. Planning permission relates to whether the property can lawfully be used as an HMO in planning terms.

Can I get an HMO licence without planning permission?

It may be possible to obtain an HMO licence even where the planning position has not been resolved, but that does not make the planning use lawful. Councils can assess licensing and planning separately. A landlord should not treat a licence as proof that planning permission is not needed.

Can I get planning permission without an HMO licence?

Yes, but planning permission does not allow a landlord to ignore licensing. If the property meets mandatory or additional licensing criteria, the landlord will still need the correct licence before operating the property as a licensable HMO.

Does every HMO need planning permission?

No. In many parts of England, a change from a C3 dwellinghouse to a small C4 HMO may be permitted development. Planning permission is more likely to be required where an Article 4 direction applies, where the HMO will have more than six occupiers, or where there are other planning constraints.

Does every HMO need a licence?

No. Mandatory licensing usually applies to HMOs occupied by five or more people forming two or more households. However, some councils operate additional licensing schemes that require smaller HMOs to be licensed. The local council’s licensing rules should always be checked.

What is the difference between C3 and C4?

C3 usually refers to a dwellinghouse used by a single household. C4 refers to a small HMO occupied by three to six residents. Larger HMOs are usually treated as sui generis, which means they fall outside the standard use classes.

What does sui generis mean for HMOs?

Sui generis means “of its own kind” in planning terms. For HMOs, it usually applies to larger shared houses with seven or more occupiers. A change to sui generis HMO use will generally require planning permission.

What is the safest first step before converting a property into an HMO?

The safest first step is to check both the licensing position and the planning position with the relevant local authority. For investment decisions, it is also sensible to obtain professional advice before committing to purchase, refurbishment, or tenant placement.

Key takeaway

An HMO licence and HMO planning permission serve different purposes. The licence focuses on whether the property is safe, suitable, and properly managed for shared occupation. Planning permission focuses on whether the use of the property as an HMO is acceptable in that location.

For landlords and investors, the practical lesson is simple: check both. Do not assume one approval covers the other. Local council rules, Article 4 directions, additional licensing schemes, property layout, and the proposed number of occupiers can all change the answer.

This article is for general information only and should not be treated as legal, planning, tax, mortgage, or investment advice. Before making decisions about an HMO property, landlords and investors should check the relevant local authority requirements and seek professional advice where needed.