Article 4 directions explained — what they remove and how to check your street

Permitted development rights are national: Parliament grants every house the same baseline freedoms through the General Permitted Development Order. An Article 4 direction is the local override — a council instrument that switches specific rights off for a defined area. It is the single most common reason a 'no permission needed' London project turns out to need one.

What an Article 4 direction actually does

The direction names an area and lists which GPDO classes no longer apply within it. Nothing is banned — the works simply move from 'automatic' to 'requires a planning application', where the council can apply its design policies. Each direction has its own schedule: one street's direction might remove only front-elevation alterations; another might withdraw rear extensions, roof works and boundary treatments wholesale. Always read the schedule, not just the shading on the map.

What London directions typically remove

Front-elevation changes: windows, doors, porches, painting in some cases.
Roof alterations and rooflights visible from the street.
Boundary walls, railings and front-garden hardstanding.
Cladding and render.
Sometimes the basic single-storey rear extension allowance itself — the expensive surprise.
Beyond homes: office-to-residential and house-to-HMO conversions, in many boroughs.

How to check, and what it means for fees

Article 4 directions are published as geometry on planning.data.gov.uk (dataset: article-4-direction-area), which the Siteline postcode check queries directly for our covered boroughs. One nuance worth knowing: where a direction removed a PD right with less than 12 months' notice, applications for that formerly-permitted development are exempt from the planning fee — and if permission for development that would have been PD is refused, compensation provisions can apply. Councils therefore usually give a year's notice; check the direction's dates.

Living with one

An Article 4 direction is not a refusal in waiting. It means your project is judged on design merit like any application — and on streets with strong precedent, well-designed schemes pass. The practical adjustments: budget application time into the programme, match materials properly, and read what the direction was made to protect, because that's the test your drawings will face.

Check your street in seconds — the area report tests your postcode against the official Article 4 boundaries and names the direction that applies.

Check an address

How do I find out if my house has an Article 4 direction?

Run your postcode through the Siteline area check (official planning.data.gov.uk geometry, our covered boroughs), or search your council's planning pages for 'Article 4' — councils must publish directions and their schedules. Your solicitor's local search will also list them.

Does Article 4 apply outside conservation areas?

Yes — directions frequently overlay conservation areas but don't have to. Many London boroughs use borough-wide Article 4 directions for things like office-to-residential conversion, entirely separate from heritage protection.

Is planning permission harder to get in an Article 4 area?

The application is assessed against normal design policies — the bar isn't formally higher, but the council made the direction because it cares about that area's character, so expect genuine scrutiny on the elements the direction covers.

Can an Article 4 direction be removed?

Councils can cancel or modify directions, and the Secretary of State can intervene, but in practice London directions tend to persist and multiply. Plan on the basis that it's permanent.

Article 4 directions explained: how they affect your extension