Article 4 Direction 2026: Rules, Risks, & What HMO Landlords Should Do

Planning to convert a property into an HMO but not sure if it requires planning permission before you proceed? In London, Article 4 Direction is a key planning rule that can affect HMO conversions. If this applies to your area, you cannot rely on permitted development rights to change a standard residential property into shared accommodation. Need to obtain planning permission first from the local council.

Find out what Article 4 means for your HMO and what you can do to meet planning and licensing requirements, with strategic insights from Real Estate Agents London.

What is an Article 4 Direction for HMOs?

An Article 4 Direction is a local planning control that removes certain permitted development rights (automatic planning rights) in a defined area. For many HMO landlords and investors, this means a change of use that would normally be possible without planning permission may now need one. 

Normally, converting a family home (use class C3) into a small HMO of three to six unrelated tenants (use class C4) doesn’t need planning permission. It’s allowed automatically, under national rules. But when a council has an Article 4 Direction for HMOs in an area, that automatic right is removed. You then need planning permission to make the change. 

For that, make a planning application. The council can: 

• Approve it
• Refuse it
• Approve it with conditions 

The planning rules on when permission is needed are set out in GOV.UK planning guidance.

Why Councils Introduce Article 4 Directions for HMOs

Councils don’t introduce Article 4 Directions without a reason. The main reason is “Control over HMO Conversions”. They often use them in an area that has seen a rapid rise in shared housing and want more control over future HMO conversions.

Common concerns include:

• Loss of family housing: Too many conversions can reduce the number of homes available for families.
• Parking and amenity pressure: More shared housing can mean more cars, bins and pressure on local services.
• HMO concentration: Some streets may develop a high number of HMOs, which can raise concerns about noise, property management and the character of the area.

An Article 4 Direction simply gives the council a chance to assess each proposed conversion rather than allowing it automatically. 

Does an Article 4 Direction Ban HMOs?

No. An Article 4 Direction does not ban HMOs from an area. It removes the permitted development right for certain changes of use. That means planning permission may be required before creating a new HMO.

Councils can still approve HMO applications in Article 4 areas. The main difference is that the proposal must go through the normal planning process and be assessed against local planning policies. The outcome depends on factors such as:

• The property
• Proposed use
• Existing HMO concentration in the area

A suitable property with a well-prepared application may be approved while one that increases an existing concentration of HMOs may face greater planning scrutiny.

Immediate vs Non-Immediate Article 4 Directions: What’s the Difference?

Article 4 Directions can be immediate or non-immediate, with the main difference being how quickly they take effect. These types of direction determine when permitted development rights are removed.

With a non-immediate direction, permitted development rights usually continue until the direction takes effect. This means some HMO conversions may still proceed without planning permission during the notice period.

An immediate direction is used when the council believes waiting could cause harm, such as a rush of HMO conversions before the new rules apply. If you are considering a property in an affected area, check the type of direction and its effective date first.

How to Check If a Property is in an Article 4 Area

Every council with an active Article 4 Direction publishes information about the affected area. This may be an online map, postcode checker or PDF showing the boundary. Before buying or converting a property, check whether it falls within an Article 4 Direction area in a few simple ways: 

1. Check the council website: Search its planning pages for the Article 4 Direction and look for a map or boundary document.
2. Use a Local Land Charges search: An LLC1 search during conveyancing can show planning restrictions, including Article 4.
3. Contact the council: If the map is unclear or the property sits near the boundary line, ask the planning department for written confirmation.
4. The Planning Portal also has general guidance on how permitted development rights work and what can affect them.

Article 4 Direction vs HMO Licensing: They Are Not the Same Thing

Article 4 relates to planning permission, while HMO licensing covers the legal standards for operating certain HMOs. Both are separate requirements and need to be met separately as well.  Meeting one doesn’t automatically cover the other. 

Licensing can also vary by council:

1. Mandatory licensing: Generally applies to HMOs with five or more occupants forming more than one household.
2. Additional licensing: Some councils extend licensing to smaller HMOs.
3. Selective licensing: Can apply to rented properties across a designated area, whether they are HMOs or not.

A valid HMO licence confirms that the property meets the relevant licensing standards, not that the property has planning permission. Therefore, landlords may need both planning permission and the appropriate HMO licence. If you are unsure which license applies to your property, talk with our licensing support team. 

Buying or Already Own an HMO in an Article 4 Area? What Happens to Existing HMOs

If a property was lawfully being used as an HMO before an Article 4 Direction took effect, that existing use is generally protected. The direction affects new conversions and does not normally remove an existing lawful use.

The key word is “lawfully.” Landlords or buyers may need to show that the HMO use started before the direction took effect and has continued without a significant break. Useful evidence can include:

• Tenancy agreements showing multiple unrelated occupants
• Council tax records
• Utility bills and tenant correspondence
• Previous planning permissions or lawful development certificates

If you’re buying an existing HMO in an Article 4 area, check this evidence as part of your due diligence. A property being advertised as an “established HMO” does not by itself prove that its use is protected. 

Working with an agent who understands both planning history and HMO management can make this check much easier. Get in touch with our HMO management team today. 

Certificate of Lawfulness: Proving an Existing HMO Is Legal

Don’t have clear documentary evidence of an existing HMO use or want it formalised? You can apply for a Certificate of Lawfulness; sometimes called a Lawful Development Certificate, or LDC. This legal document formally confirms that the property’s current use is lawful, either because it: 

• Began before the Article 4 Direction
• Was properly authorised at the time

An LDC is not compulsory, but it can provide stronger evidence if you later sell, remortgage or need to prove the property’s lawful use. The application needs: 

• Details of the property’s current use and how long it has continued
• Evidence such as tenancy agreements, bills and council tax records
• Any relevant statutory declarations
• The council’s application form and fee

Requirements and fees vary between councils, so check with the relevant planning authority before applying. Full guidance on the process is available on GOV.UK’s Lawful Development Certificate page.

Applying for Planning Permission in an Article 4 Area: What Councils Assess

If planning permission is required, the council will assess the proposal against its local planning policies. The exact requirements vary by area, but several factors commonly come up:

Overconcentration: Some councils set limits on the number of HMOs within a certain area. A proposal that takes the concentration above the local threshold may face greater scrutiny.

“Sandwiching”: A proposed HMO located between two existing HMOs may raise concerns about further concentration on the same street.

Amenity and parking: Councils may consider parking, bin and cycle storage, noise and whether the property is suitable for multiple occupants.

There is no single national threshold for these factors. Each council sets its own policies and planning requirements.

Can You Claim Compensation for an Article 4 Direction?

In some cases, yes. Compensation may be available if an Article 4 Direction removes permitted development rights and causes a genuine, measurable financial loss to landowner. The relevant rules are set out in sections 107 and 108 of the Town and Country Planning Act 1990 and the Town and Country Planning (Compensation) (England) Regulations 2015.

The type of direction affects this too:

• Non-immediate direction: Usually gives at least 12 months’ notice before permitted development rights are removed. This generally reduces the risk of a compensation claim.
• Immediate direction: Removes the rights straight away. The council must confirm it within six months following public consultation, or the direction will lapse. This shorter timeline is part of why immediate directions carry more compensation risk.

Compensation is not automatic. The circumstances of the direction, the planning decision and the scale of financial loss all matter. If you think you may have a claim, it’s worth getting legal or planning advice before taking action.

Common Mistakes Landlords Make With Article 4 Directions

Thinking Article 4 means HMOs are banned

Article 4 does not automatically stop you from creating an HMO. It removes certain permitted development rights, which can mean you need planning permission for a change of use.

Assuming the same rules apply everywhere

Article 4 Directions are local. Planning policies and the way councils assess HMO proposals can differ between areas. So what works in one location may not work in another.

Relying on old or general information

Old advice, property listings, forum posts, or another landlord’s experience may not reflect the current position.

Assuming planning permission is the only issue

Article 4 only deals with certain permitted development rights. The property, local planning policies, planning history, and proposed HMO use can all affect the final planning outcome.

Checking Article 4 too late

After making an offer or starting design work, waiting can create unnecessary costs and delays. So check planning positions early to protect yourself from such unexpected situations.

Article 4 is only one part of a landlord’s wider responsibilities. Our guide to landlord responsibilities covers the other key requirements you need to keep up with.

Frequently Asked Questions