What Is an Article 4 Direction? How It Restricts Permitted Development
In short
An Article 4 direction is an order made by a local council that removes specific permitted development rights in a defined area. Work that would normally be allowed without a planning application, such as changing windows, building a dormer or converting a house to an HMO, then needs planning permission.
An Article 4 direction takes its name from Article 4 of the General Permitted Development Order 2015, which allows councils to switch off particular permitted development rights where they consider it necessary, usually to protect the character of an area or manage housing. They are widespread across London, so checking for one is an essential early step on any project that relies on permitted development.
What an Article 4 direction can restrict
Each direction lists the specific rights it removes and the exact properties or area it covers. Common examples in London include:
- Front elevations in conservation areas: replacing windows and doors, changing roof coverings, painting brickwork, or removing front boundary walls.
- Roof alterations: dormers or roof lights on visible slopes.
- Extensions: rear or side extensions in particularly sensitive streets.
- House to HMO: converting a family house into a small house in multiple occupation.
- Commercial to residential: office or shop to homes under Class MA, removed in many central and town centre locations.
How to check if one applies
- Search your council’s website for its list of Article 4 directions and maps.
- Check whether your property is in a conservation area, where directions are most common.
- Look at your property’s planning history and the local land charges search from your purchase.
- If in doubt, ask the council’s planning department or a planning consultant.
What it means for your project
If a direction removes the right you were relying on, you will need to submit a planning application for that work. The council then assesses it on its merits, which may mean design changes, such as a smaller dormer, traditional materials or conservation style roof lights. Applications needed only because of an Article 4 direction are generally free of charge, but the extra time must still be built into your programme.
Why London councils use them
Much of London’s character comes from consistent streets of period houses: matching sash windows, original doors, slate roofs and front garden walls. Small changes made one house at a time can erode that quickly, and permitted development alone gives councils no say. Article 4 directions let them protect what makes a street special, and manage housing pressures such as the spread of shared houses in particular neighbourhoods.
What it does not do
An Article 4 direction does not ban development. It means the council decides case by case. Good design that respects the street often gains approval. It also does not affect building regulations, which apply in the same way.
How we handle Article 4 areas on London’s Prestige projects
We check for conservation areas and Article 4 directions at the very first site visit, so your plans are based on the rules that actually apply to your property. Where planning is needed, we coordinate drawings that reflect the council’s expectations and plan the programme around the decision date. See the loft conversion on our Highbury Terrace Mews project, read about our loft conversion service, and book a site visit for a clear view of what is possible on your street.
Common questions
How do I know if my house is in an Article 4 area?
Check your council's website for its Article 4 directions and maps, look at the local land charges search from your purchase, or ask the planning department.
Does an Article 4 direction mean I cannot extend?
No. It means you need planning permission for the specific work it covers. The council then assesses your proposal on its merits.
Is there a fee for a planning application needed because of Article 4?
Generally not, where the application is needed only because the direction removed the permitted development right. Other applications follow the normal fee scale.