Checking Article 4 directions on planning.data.gov.uk

An Article 4 direction dataset check on planning.data.gov.uk takes about two minutes and tells you whether the government's national register holds a direction covering your site. It is the right first move before you buy a house to convert to an HMO or price an office-to-residential scheme. It is the wrong basis for exchanging contracts, because the dataset depends on each local planning authority publishing its directions to a national standard, and that publication is incomplete.

Use it to narrow the field. Then confirm with the authority.

What the national dataset holds

The platform publishes two related datasets. One records the direction itself, with a reference, a name, a start date, the permitted development rights withdrawn and a link to the authority's own documentation. The other records the geographic area the direction applies to, with a boundary polygon or, in some records, only a point.

Both are searchable on the map, browsable as a list and downloadable in the usual spatial formats. There is also an entity interface that returns records as data, which matters if you are checking a portfolio rather than a single address.

Neither dataset is a legal record. They are an index pointing at documents held by the authority, and the platform says as much on its dataset pages. The field that people skip is the documentation link. That link points back to the authority's published direction and confirmation notice, and reading the direction itself is the only way to know precisely which classes of permitted development have been removed. A direction that removes Class A rear extensions is a different animal from one that removes the right to change from Class C3 to Class C4.

Why coverage is patchy

Article 4 directions are made by local planning authorities under article 4 of the Town and Country Planning (General Permitted Development) (England) Order 2015, following the procedure in Schedule 3 to that Order. Nothing in the Order has historically required an authority to publish its directions as structured national data, so what sits on the platform reflects what each authority has chosen or managed to supply.

The Levelling-up and Regeneration Act 2023 contains powers to require planning data to be provided in a standard form, and commencement of those provisions is being phased, so the position is improving rather than settled. As at October 2026 you should still expect gaps.

The gaps take three shapes. Some authorities have no records at all. Some have records for recent directions and not for directions made in the 1970s and 1980s, which are often the ones covering the most attractive Georgian and Victorian streets. And some have the direction recorded without a usable boundary, which tells you a direction exists somewhere in the authority without telling you where.

Reading a record properly

Work through the fields in this order.

1. The name and reference, so you can quote it to the authority.
2. The start date, because a direction only bites from the date it comes into force, and any earlier development is unaffected by it.
3. The withdrawn rights, expressed as Schedule 2 parts and classes. "Part 1 Class A" and "Part 3 Class L" mean very different things to a landlord.
4. Any end date, since directions can be cancelled.
5. The documentation link, which is the authoritative text.

An HMO direction normally withdraws Part 3 Class L of Schedule 2, the right to change between Class C3 dwellinghouses and Class C4 small houses in multiple occupation. That removal means a planning application is needed for a change that would otherwise be permitted development, and the application then stands or falls on local plan policy about concentration, amenity, bin storage and parking stress. Our note on parking surveys covers the evidence usually expected on the parking limb.

Testing the boundary against your site

Boundary edges are where the money is. Directions are frequently drawn along a street or a block, and a property on the far side of the road may sit outside.

Zoom in until you can see individual plots. Compare the polygon against the title plan rather than against a rough address pin, because geocoded address points sit at building centroids and can land on the wrong side of a line by a few metres. Where the polygon edge runs along a highway, check whether the direction was drawn to the highway centre line or to the back of the footway.

Where only a point is published, treat the record as a flag and go to the authority's own mapping. The same care applies to any constraint boundary, and the method is the same one described in our note on reading a flood map for planning.

Cross-checking with the authority

The authority's own list is the definitive source. Most publish a page of Article 4 directions with scanned notices and plans, and many hold the boundaries on an interactive constraints map alongside conservation areas and listed buildings.

Three cross-checks are worth the time on any purchase. Ask the authority in writing whether a direction affects the specific address and which rights it removes. Check whether a new direction has been made or notified but not yet published nationally, since the notification period can run for months. And check whether the property also sits in a conservation area, because conservation area status restricts some permitted development in its own right, independently of any direction.

A written answer from the authority costs nothing and takes the guesswork out. If the stakes justify it, a Lawful Development Certificate under section 192 of the Town and Country Planning Act 1990 is the only formal route to confirm that a proposed change of use is lawful without permission.

Working across a portfolio

For more than a handful of addresses, download rather than click. Pull the direction-area dataset as a spatial file, load your address list with coordinates, and run a point-in-polygon join. The output gives you a direction reference against each address, which you then sample-check by hand.

Two refinements make the output usable. Buffer each address by a few metres and flag anything that falls within the buffer but outside the polygon, so edge cases surface rather than disappear. And join on the direction record to pull in the withdrawn rights, because a portfolio report that says "Article 4" without saying which rights have gone is of no practical use to an acquisitions team.

Record the date you ran the extract and the dataset version. Constraints change, and a report with no date on it is worthless six months later.

On larger portfolios it also pays to keep the raw download rather than only the joined output. When an authority makes a new direction and you need to show what the position was at acquisition, the dated raw file is the evidence. A joined spreadsheet with no provenance is not.

Where the dataset should not stand alone

The platform is a discovery tool. It does not tell you whether a direction is valid, whether it has been superseded, or how the authority interprets its edge. It will not tell you about conditions on an earlier permission that removed permitted development rights from the property, and that is a common trap on estates built since the 1980s.

So use the national dataset to find candidates and to rule sites out quickly. Use the authority's published direction to decide. And if a scheme depends on permitted development surviving, build the certificate application into the programme rather than hoping.

Enter your postcode on PlanScope to see which reports your site is likely to need, including the planning statement that would accompany an HMO application in an Article 4 area.

This is general guidance, not legal advice. Check the position with your local planning authority or a qualified professional before relying on it. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.