Planning publicity requirements by scheme scale
Whether a council must display a site notice, write to neighbours or advertise in a newspaper depends on the scale and type of development. Here is the rule, and how to check it.
How a council has to advertise a planning application depends on the type and scale of the development, and the rules are in article 15 of the Town and Country Planning (Development Management Procedure) (England) Order 2015. A householder extension can be publicised by letters to neighbours alone. A major scheme needs a site notice or neighbour letters plus a notice in a local newspaper. Development subject to environmental impact assessment, or a departure from the development plan, needs both a site notice and a press notice. Twenty-one days is the standard period for representations.
Knowing which rule applies to a particular application is useful for two reasons. It tells you whether you have been properly notified, and it tells you how long you have.
Site notices, neighbour letters and press notices
Three methods do the work, and they are not interchangeable.
A site notice is displayed on or near the land, in a position where passers-by can read it. It names the proposal, the application reference, where to see the documents and the date by which representations must be received.
Neighbour notification is a letter to adjoining owners or occupiers. The definition of adjoining is narrower than most people assume: it means premises sharing a boundary, so a house across the road may receive nothing even where it has the clearest view of the site.
A press notice is an advertisement in a newspaper circulating in the locality. It exists for developments where the wider public has an interest beyond the immediate neighbours.
Which method applies at which scale
| Development type | Publicity required |
|---|---|
| Householder and other minor development | Site notice or neighbour notification |
| Major development | Site notice or neighbour notification, plus a press notice |
| EIA development | Site notice and press notice |
| Departure from the development plan | Site notice and press notice |
| Affecting a public right of way | Site notice and press notice |
| Affecting the setting of a listed building or the character of a conservation area | Site notice and press notice |
Major development, for these purposes, follows the definition in the Order: 10 or more dwellings, a site of 0.5 hectares or more where the number of dwellings is not known, 1,000 square metres or more of floorspace, or a site of 1 hectare or more for other development. Those same thresholds drive several other requirements, which is why scheme size has such a wide effect, as our note on energy and carbon requirements by scheme scale shows.
Where the authority has a choice between a site notice and neighbour letters, it chooses. Many use both as a matter of practice, but a reader who received no letter has not necessarily been treated unlawfully.
Applications accompanied by an Environmental Impact Assessment attract a longer period. The EIA Regulations 2017 require a minimum of 30 days for representations on an environmental statement, and a separate notice describing where the statement can be inspected and obtained.
Departures from the development plan
A departure is an application the authority proposes to approve even though it conflicts with the development plan. The extra publicity exists precisely because the plan is the public's reference point, and a decision against it is a decision against something that was itself consulted on.
Watch for the phrase in the officer report rather than on the notice. An application advertised only by neighbour letter, and then recommended for approval as a departure, has a publicity problem.
Some departures also require referral to the Secretary of State under a direction, depending on the type and scale of the conflict. That adds time rather than changing the publicity.
Consultation period length
Twenty-one days is the standard period, counted from the date the site notice was first displayed, the press notice published, or the letter served, depending on the method used. An authority may allow longer and frequently does over a holiday period.
Three practical points:
- a council may not determine the application before the period expires
- representations received after the period must still be taken into account if they arrive before the decision, and most authorities do so
- the period is a minimum, so a council that gives 28 days has not made an error
Where several methods are used with different start dates, the period runs from the latest relevant date. Check the expiry date published on the council's website rather than calculating it yourself, and if the two disagree, ask.
Re-consultation after amendment
There is no statutory requirement to re-advertise an application when the plans are amended. The duty comes from common law fairness, and the question is whether the change is so substantial that granting permission would deprive those who should have been consulted of the chance to comment.
In practice, an amendment that increases height or depth, adds a window overlooking a neighbour, moves the access, or adds dwellings should bring fresh publicity. A dimensional correction or a like-for-like change in materials should not.
If amended plans appear on the public file without a new consultation, write in. A short letter saying you wish to comment on the revision, and have not been given the opportunity, is a fact on the file that matters if the decision is later challenged. The applicant's own community engagement, where a Statement of Community Involvement was submitted, is a separate exercise and does not discharge the council's duty.
What happens if publicity was defective
A breach of article 15 does not automatically invalidate a permission. The usual remedy before a decision is for the authority to re-advertise and determine afterwards, and authorities will normally do that when the defect is pointed out.
After a decision, the route is judicial review, generally within six weeks of the grant. Courts look at whether the breach caused substantive prejudice: whether anyone was in fact deprived of the chance to make representations that could have affected the outcome. A technical failure with no consequence is unlikely to succeed on its own.
That is why timing matters more than indignation. Raising a publicity defect while the application is live costs nothing and usually works. Raising it after the decision is expensive and uncertain.
Checking the council did it properly
A short routine covers most of it:
- Find the application on the council's planning register and note the publicity type and the consultation expiry date shown.
- Ask the case officer, in writing, which method was used, when the site notice went up and where, and which addresses were written to.
- Photograph the site notice yourself, with the date, if you can find it. Notices are removed, fall down and get covered over.
- For a major scheme, ask which newspaper carried the advertisement and on what date, and check it.
- Check whether the officer report describes the proposal as a departure from the development plan.
- Where plans have been amended, compare the current drawing list against the one that was advertised, and ask for a new period if the scheme has moved.
Keep it factual and keep it in writing. Planning officers respond to specific questions about dates and addresses far better than to general complaints about process, and a written answer is the record you need if the matter goes further.
One honest point. Publicity gives you the chance to comment, not a right to be agreed with, and a well-run consultation can still end in a permission you dislike. The value in checking is making sure the material considerations you care about are actually in front of the decision maker, in time to count. Where a site is being brought forward in phases, each application has its own publicity, which our note on phasing a large scheme looks at from the applicant's side.
Browse the 66 report types by category if you want to understand which documents should have accompanied the application you are reading. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it.
Frequently asked questions
Does the council have to write to me about a neighbour's application?
Not necessarily. For minor development the authority may choose between a site notice and neighbour notification, and notification goes to adjoining owners or occupiers, meaning premises sharing a boundary. A house across the road may receive nothing. Check the council's planning register for the publicity type and consultation expiry date shown.
How long is the consultation period on a planning application?
Twenty-one days is the standard minimum, counted from the date the site notice was displayed, the press notice published or the letter served. An authority may allow longer. Where an environmental statement is submitted, the EIA Regulations 2017 require a minimum of 30 days for representations instead.
When is a newspaper advertisement required?
For major development, for development subject to environmental impact assessment, for a departure from the development plan, for proposals affecting a public right of way, and for schemes affecting the setting of a listed building or the character of a conservation area. Major development includes 10 or more dwellings or 1,000 square metres or more of floorspace.
Must a council re-advertise when plans are amended?
There is no statutory duty, but common law fairness requires it where the change is so substantial that granting permission would deprive people of the chance to comment. Increases in height or depth, new overlooking windows, a moved access or extra dwellings normally warrant fresh publicity. Write in if amended plans appear without one.
What can I do if publicity was defective?
Raise it in writing while the application is live, asking the authority to re-advertise before determining. That usually works and costs nothing. After a decision, the route is judicial review, generally within six weeks, and the court will look at whether anyone suffered substantive prejudice rather than at the technical breach alone.
Sources and further reading
This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.