What Is an Article 4 Direction? The Complete Homeowner Guide (2026)
You have probably just come across the term while checking whether you can build an extension, replace a window, or convert a property, and it sounds more alarming than it is. Here is what an Article 4 direction actually means, where the power comes from, what it stops you doing, what it does not, and how to find out if one covers your address.
TL;DR - The Quick Answer
An Article 4 direction withdraws specific permitted development rights from a defined area, so work that would normally be automatic (a rear extension, a window swap, an HMO conversion) needs a full planning application instead. It is made under Article 4 of the GPDO 2015 and follows a set procedure in Schedule 3 of that Order: publicity, at least 21 days for representations, and confirmation by the council. Non-immediate directions give at least 12 months' notice and carry no compensation liability. Immediate directions take effect straight away and can expose the council to a compensation claim under section 108 of the Town and Country Planning Act 1990 if a subsequent application is refused. Crucially, an Article 4 direction is not a ban: you can still apply for planning permission, and many such applications are approved. The only way to know for certain if your property is affected is to check your specific address.
Article 4 Direction: The Plain-English Definition
Most homeowners in England benefit from permitted development rights without ever thinking about them. These are a standing national grant of planning permission, set out in the Town and Country Planning (General Permitted Development) (England) Order 2015 (the GPDO), that lets you carry out certain categories of work, a single-storey rear extension, a loft conversion, replacement windows, a new porch, without submitting a planning application first.
An Article 4 direction is the mechanism that switches that automatic permission off in a specific place. It is a legal order made by the local planning authority (or, less commonly, the Secretary of State) that removes one or more permitted development rights from a defined area, a street, an estate, a conservation area, or in some cases an entire borough. Once a direction covers your property, the work it targets is no longer permitted development. You have to apply for planning permission and get it granted before you can lawfully carry the work out.
Think of permitted development rights as a green light that applies everywhere by default. An Article 4 direction turns that green light to red for a specific right, in a specific place. The traffic itself, your ability to apply for permission and build, is not stopped. You just have to stop and ask first.
Key point: An Article 4 direction removes automatic permission for a specific right. It does not remove your right to apply for planning permission, and it does not automatically mean your application will be refused.
The Legal Basis: Article 4 of the GPDO 2015
The power comes from Article 4 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (SI 2015/596). Article 4(1) allows the Secretary of State or a local planning authority, where satisfied that it is expedient to do so, to direct that the automatic permission granted elsewhere in the Order does not apply to a particular category of development in a specified area, or to a particular development on a specified site. Schedule 2 of the Order is the master list of permitted development rights (extensions, roof works, outbuildings, changes of use, and so on), organised into Parts and Classes. An Article 4 direction always targets one or more of those specific Parts or Classes.
The direction itself does not have to cover an entire category of works. A council can be highly targeted: removing only Part 1, Class A (general alterations to a dwellinghouse) in a single conservation area, for example, while leaving every other permitted development right in that same area untouched. This is different from a conservation area designation, which automatically removes a standard bundle of rights the moment it is designated. An Article 4 direction is bespoke: the council decides exactly which rights to remove, over exactly which boundary, and has to justify that decision.
The procedure a council must follow to make, modify or cancel a direction, the notices, the consultation period, and the confirmation step, is set out in Schedule 3 of the same Order. We cover that process later in this guide, in the context of how you can comment on or object to a proposed direction.
Immediate vs Non-Immediate Directions, and Compensation
There are two types of Article 4 direction, and the difference matters both for timing and for whether the council can end up paying compensation.
- Non-immediate direction: the standard route. The council gives at least 12 months' notice between making the direction and it coming into force. Because owners have fair warning to apply under the old permitted development rights if they want to, the council is not liable to pay compensation for any application that is later refused.
- Immediate direction: takes effect straight away, without the 12-month run-in. Councils use this route when they are worried a non-immediate direction would trigger a rush of applications and building work before the new rules apply. Because rights are withdrawn without adequate notice, the council can be liable for compensation under section 108 of the Town and Country Planning Act 1990.
| Feature | Non-immediate direction | Immediate direction |
|---|---|---|
| Notice before taking effect | At least 12 months | None - takes effect on the date made |
| Compensation liability (s.108 TCPA 1990) | None | Possible, for qualifying refusals |
| Typical use case | Standard route for most conservation area and HMO directions | Used where a rush of applications before the direction bites would defeat its purpose |
| Confirmation requirement | Confirmed by the council after the representation period | Must be confirmed within 6 months or it lapses |
Source: Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 3; Town and Country Planning Act 1990, s.108 • Data as of 2026
Section 108 compensation is not automatic just because an immediate direction was made. It becomes payable where someone submits a planning application for development that would have been permitted development but for the direction, that application is refused (or granted subject to more restrictive conditions than the GPDO would have imposed), and the application was made within 12 months of the direction taking effect. A compensation claim then has to be served on the council within 12 months of the planning decision. GOV.UK guidance describes the compensation as covering abortive expenditure and other loss or damage directly attributable to the withdrawal of the permitted development right - typically wasted professional fees and demonstrable diminution in the value of the property, rather than a general claim for lost potential.
For the vast majority of homeowners this distinction is academic: most Article 4 directions affecting residential streets are non-immediate, so no compensation question arises either way. It matters mainly if you are trying to understand why a council chose one route over the other, or if you are mid-project when a direction is announced and want to know your legal position.
What Article 4 Directions Typically Restrict
Because every direction is written to remove a specific set of rights, there is no single answer to "what does Article 4 stop me doing." But three patterns cover the large majority of directions in London and across England:
The three common uses
To give a sense of which specific permitted development classes are commonly targeted, here is how the more frequent restriction types map onto the GPDO 2015:
| What is restricted | GPDO 2015 right removed | Typical context |
|---|---|---|
| Windows, doors and general alterations | Part 1, Class A | Conservation areas |
| Roof alterations and dormer windows | Part 1, Class B | Conservation areas |
| Painting or rendering the exterior | Part 2, Class C | Conservation areas |
| Front boundary walls, fences and gates | Part 2, Class A | Conservation areas and character areas |
| Small HMO conversion (C3 to C4) | Part 3, Class L | Boroughs managing HMO concentration |
| Office or commercial to residential conversion | Part 3, Class MA | Employment areas and town centres |
Source: Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2 • Data as of 2026
A single property can sit under more than one restriction at once, for example inside both a conservation area Article 4 (affecting windows and roofs) and a borough-wide HMO Article 4 (affecting change of use), which are entirely independent of each other. If you want the full picture of where these directions apply across London, our complete list of Article 4 directions by London borough covers the national dataset, and our Article 4 and HMO borough guide covers HMO-specific directions in detail, including which boroughs still allow C3 to C4 conversion under permitted development.
What an Article 4 Direction Does Not Do
This is the part that causes the most unnecessary worry, so it is worth stating clearly. An Article 4 direction is a procedural requirement, not a prohibition.
- It is not a building ban. You can still submit a planning application for exactly the work that used to be permitted development. Many applications in Article 4 areas are approved, particularly where the design respects the character the direction was introduced to protect.
- It does not touch internal work. Internal alterations, and any works that only affect the interior or do not materially affect the external appearance of a building, are not "development" at all under section 55 of the Town and Country Planning Act 1990. Article 4 can only remove rights that exist under the GPDO; it has no power over work that never needed permission in the first place.
- It does not undo existing approvals. If your development already had a prior approval date before the direction came into force, that approval stands. A direction only affects work carried out after it takes effect.
- It does not affect rights it was not written to remove. Because directions are bespoke, an Article 4 covering, say, front boundary treatments in a conservation area has no bearing on your right to build a rear extension, unless a separate part of the same direction (or a different direction) says so.
The practical effect is a change in process and cost, not a change in outcome for most well-designed schemes. You go from a free, automatic right to a planning application that costs £548 for a standard householder application, takes roughly 8 weeks to determine, and is assessed against the council's normal planning policies.
How to Check If You Are Affected
Article 4 directions are not always obvious from the street, and being just outside a conservation area boundary does not automatically mean you are clear: some directions extend beyond the conservation area, and some cover isolated streets with no conservation designation at all. There are a few ways to check:
If you are buying a property with development potential rather than simply extending your own home, checking Article 4 status is one of dozens of constraints worth verifying before you commit. Our £395 site planning report covers Article 4 status alongside conservation area designation, listed building status, flood risk, Green Belt and the rest of the planning picture for a specific site, delivered within 24 hours.
What Happens If You Ignore an Article 4 Direction
Carrying out work that an Article 4 direction has made subject to planning permission, without first obtaining that permission, is a breach of planning control in exactly the same way as building an extension without permission anywhere else. It does not matter that the work would have been permitted development a few streets away, or would have been permitted development on your own property before the direction was made. Once the direction is in force, the council can take enforcement action.
Since 25 April 2024, councils have a single 10-year period to take enforcement action against most breaches of planning control, following the change made by section 115 of the Levelling Up and Regeneration Act 2023. Work substantially completed before that date can still benefit from the older, shorter time limits under transitional rules. We cover the mechanics of this in full in our dedicated guide to the 4-year rule and planning enforcement. The short version for Article 4 purposes: do not assume that unauthorised work becomes safe after a fixed, short period. The window is longer than it used to be, and enforcement can include an enforcement notice requiring the work to be reversed, and in serious cases prosecution.
If you have already carried out work that needed permission because of an Article 4 direction, a retrospective planning application is possible, but it is assessed exactly like any other application and can be refused. A Lawful Development Certificate, which costs £274 to apply for, is a separate route that confirms whether existing work is lawful once enough time has passed without enforcement action, but it does not retrospectively grant permission for work that is still within the enforcement window. If you are in this position, get advice before doing anything else: a retrospective application made badly can make a later, better application harder to secure.
How to Object to or Comment on a Proposed Direction
Councils cannot simply announce a non-immediate Article 4 direction and have it take effect overnight. Schedule 3 of the GPDO 2015 sets out a defined publicity and consultation procedure that has to be followed before the direction can be confirmed:
The statutory process
If you want to influence a proposed direction, the consultation period is the point at which to do it. A written representation setting out how the proposal would affect your property, or your specific objection to its scope or boundary, becomes part of what the council has to consider before confirming. Once a non-immediate direction has been confirmed, there is no equivalent of a planning appeal against the decision to make it, unlike a refused planning application, which can be appealed to the Planning Inspectorate. The Secretary of State retains a limited power to direct a council to modify or cancel a direction in some circumstances, though this is rarely how individual objections are resolved in practice.
Immediate directions work differently: because they take effect on the day they are made, there is no advance consultation before commencement. The council must notify the Secretary of State on the same day, and the direction lapses automatically after six months unless it is formally confirmed, at which point the same representation opportunity applies.
An Article 4 direction is a legal order made under Article 4 of the Town and Country Planning (General Permitted Development) (England) Order 2015 that withdraws specific permitted development rights from a defined area. It does not ban development: it means the affected work needs a planning application instead of proceeding automatically. Non-immediate directions give at least 12 months' notice and carry no compensation liability. Immediate directions take effect straight away and can trigger compensation under section 108 of the Town and Country Planning Act 1990 if a subsequent application is refused. The three most common uses in London are protecting conservation area character, controlling small HMO conversions (C3 to C4), and preventing office-to-residential conversion in employment areas.
Frequently Asked Questions
What is an Article 4 direction in simple terms?
An Article 4 direction is an order made by a council that removes a specific permitted development right from a defined area. Instead of being able to carry out that particular type of work automatically, you have to apply for planning permission first. It is targeted, not a general building ban: other permitted development rights not named in the direction remain unaffected.
What law creates Article 4 directions?
The power comes from Article 4 of the Town and Country Planning (General Permitted Development) (England) Order 2015. The procedure for making, modifying or cancelling a direction is set out in Schedule 3 of the same Order. Compensation, where it applies, is governed separately by section 108 of the Town and Country Planning Act 1990.
Does an Article 4 direction stop me building an extension?
Only if the direction specifically removes the permitted development right that covers extensions (Part 1, Class A of the GPDO). Many Article 4 directions target other things entirely, such as HMO conversions or windows and doors in conservation areas, and leave extension rights untouched. Even where extension rights are removed, you can still apply for planning permission for the same extension.
What is the difference between an immediate and a non-immediate Article 4 direction?
A non-immediate direction gives at least 12 months' notice before it takes effect and carries no compensation liability for the council. An immediate direction takes effect on the day it is made, is used where the council wants to prevent a rush of applications before the rules change, and can expose the council to a compensation claim under section 108 of the Town and Country Planning Act 1990 if a subsequent application is refused.
Can I claim compensation if an Article 4 direction affects my plans?
Only in specific circumstances tied to immediate directions. You would need to have submitted a planning application, within 12 months of the direction taking effect, for development that would have been permitted development but for the direction, and had that application refused or granted with more restrictive conditions. The claim, covering things like abortive professional fees and demonstrable loss in property value, must be served within 12 months of the planning decision. Non-immediate directions, the majority of those in force, do not give rise to a compensation right.
How do I find out if my property is in an Article 4 area?
Use a free property check like Mayfair Studio's planning permission checker, which cross-references conservation area boundaries and Article 4 direction data for a specific address. You can also check your council's planning constraints map, search the national dataset at planning.data.gov.uk (coverage varies by council), or contact the council's planning department directly for a definitive answer.
What happens if I already started work before I realised an Article 4 direction applied?
Stop and get advice before doing anything further. Continuing work that needed planning permission is a breach of planning control, and councils now have a 10-year window (since 25 April 2024) to take enforcement action against most breaches. A retrospective planning application is possible but is assessed like any other application and can be refused, so it is worth understanding your options before submitting one.
Can I object to a proposed Article 4 direction before it's confirmed?
Yes, for non-immediate directions. Councils must publicise a proposed direction (local press notice, site notices displayed for at least 6 weeks, and letters to affected owners and occupiers where practicable) and allow at least 21 days for written representations before confirming it. This consultation window is the main opportunity to influence the boundary or scope of a direction. Immediate directions take effect before any consultation, though they must still be confirmed within 6 months, at which point the same representation process applies.
Summary
An Article 4 direction is a procedural hurdle, not a wall. It swaps an automatic right to build for a requirement to apply, in a location and for a category of work the council has specifically identified. The legal machinery behind it, Article 4 of the GPDO 2015, the Schedule 3 consultation process, and the section 108 compensation regime for immediate directions, exists to make that switch fair and predictable, not to punish homeowners.
The practical takeaway is simple. Check your specific address before assuming either that permitted development applies, or that it does not. If a direction does cover your property, understand exactly which right it removes: it may have no bearing on the project you actually have in mind. And if you do need a planning application as a result, budget for the £548 fee, an 8-week determination period, and a design that responds to whatever the direction was introduced to protect.
For the London-wide picture of where these directions sit, see our complete list of Article 4 directions by borough and our guide to permitted development rights in London. For HMO landlords specifically, our Article 4 and HMO borough guide covers every borough's position on C3 to C4 conversions.