Using the planning register to research a precedent
A comparable decision is a material consideration, not a binding precedent. Here is how to find the right cases on the register, read them properly and cite them without overclaiming.
A previous decision on a comparable site is a material consideration, and consistency in decision-making is something both officers and inspectors take seriously. It is not a precedent in the legal sense. The proposition from the case law is narrower and more useful: where a decision maker departs from a previous decision on a like case, they should explain why, and a failure to engage with a directly comparable decision is a weakness in the reasoning rather than an automatic error.
Which makes the public register a working tool rather than an archive. The question is how to find the right comparisons and how to use them without overstating what they prove.
What the statutory register contains
Local planning authorities keep a register of applications under section 69 of the Town and Country Planning Act 1990, with the contents specified in the Development Management Procedure Order. In practice the online register for each authority holds the application form, the drawings, the supporting documents, the consultation responses, the officer report or delegated report, and the decision notice with its conditions and reasons.
The officer report is the document that matters. The decision notice tells you what was decided. The report tells you why, which policies were applied, what weight was given to each consideration, and what the officer thought of the objections. For a committee item, the committee minutes add whether members followed the recommendation and on what basis.
Appeal decisions sit alongside the register, published through the Planning Inspectorate's casework service, and they carry more weight than a delegated decision because an inspector has reasoned the issues in full.
Searching so you find the useful cases
Most registers offer a simple search and an advanced search, and the simple search wastes time. Work the advanced search in this order.
- Set a date range. Decisions more than about five years old may predate the current local plan or a material change in national policy, which weakens them.
- Filter by application type. A householder decision tells you nothing about a full application for four dwellings.
- Search by ward or parish rather than by radius, because wards align with the character areas officers use.
- Use description keywords that officers actually type: "erection of", "change of use", "conversion of", "variation of condition".
- Filter by decision, and read the refusals as carefully as the approvals. A refusal for a reason your scheme avoids is stronger evidence than an approval you cannot fully explain.
Then widen. Appeal decisions from neighbouring authorities on the same policy point are worth having, particularly where your authority has no recent decisions of its own.
Reading the officer report properly
Skim for the recommendation and you will misuse the case. Read for four things.
The description of development, in full, because the comparison stands or falls on whether the two proposals are alike. A scheme approved as an annexe with an occupancy condition is not evidence for an independent dwelling.
The policy framework applied, with the plan and policy numbers, so you can tell whether the same policies are still in force. Where the local plan has been replaced since, the decision is weaker.
The reasoning on the issue that matters to you, quoted precisely. One paragraph of an officer's assessment of highway safety on a similar access is worth more than the whole report.
The conditions. They show what the authority thought was necessary to make the development acceptable, which is often the practical answer you are looking for.
How much weight a previous decision carries
Be honest about this in the Planning Statement, because overclaiming invites an easy rebuttal.
A previous decision carries most weight where the site is close by, the proposal is materially the same, the policy framework is unchanged, and the decision is recent and reasoned. It carries least where the site is different in character, the decision predates the current plan, the reasoning is thin, or the decision was a delegated approval with a two paragraph report.
The argument to make is not that the authority is bound. It is that the authority reached a view on a comparable set of facts, that the view was reasoned, and that consistency requires either the same conclusion or an explanation of the difference. Put the comparison in a table: address, reference, date, description, the relevant finding, and why it is comparable.
One trap. Do not rely on a decision that was subsequently quashed, appealed successfully by an objector, or made on a false factual basis. Check the full history on the register before citing anything.
Checking whether a permission was implemented
An unimplemented permission and an implemented one carry different weight, and for fallback arguments the difference is everything.
Look for the sequence of evidence. Conditions discharge applications show that the developer was progressing towards a start. Where the authority charges the Community Infrastructure Levy, the notice a developer must serve before starting work records the intended start date. Building control records show whether a building notice or full plans application was made. Aerial imagery and street level imagery, dated, show whether anything happened on the ground.
Where a permission was granted more than three years ago and nothing was built, it has probably lapsed under the default time limit in section 91 of the 1990 Act, unless a material operation was carried out in time. If your case depends on a live fallback, establish it properly rather than asserting it, because officers check.
Where the register runs out
Three gaps come up repeatedly.
Older applications, typically pre-2000 and sometimes considerably later, are often paper records that were never digitised. The authority holds them, and a written request or a visit to the planning office will usually produce them, though it takes time.
Enforcement records are kept on a separate register under section 188, listing enforcement and stop notices, and the underlying case files are generally not public. Absence of an enforcement entry is not evidence that a use is lawful.
Section 106 agreements are frequently missing from the online record even where the decision notice refers to one. Ask for a copy, because the obligations can explain conditions that otherwise look unexplained.
Illustrative example: a consultant researching a rural conversion finds three comparable decisions in the same parish. Two were approvals with conditions restricting extensions, one a refusal on landscape grounds. The refusal has the most detailed reasoning, and its concerns turn on a ridgeline the subject site does not sit on. The statement cites all three, quotes the refusal at length, and explains the topographical difference. Illustrative only.
Recording what you rely on
Keep a research log with the authority, reference number, address, decision date, decision, the paragraph relied on, and the date you accessed the record. Registers get reorganised and links break, so save the officer report as a file rather than trusting a URL.
For reforms that may have changed the policy basis of an older decision, the timeline at the planning law updates page is a place to follow what has moved. Where an argument turns on housing supply at the date of a previous decision, the figures and their status matter as well, and our note on finding housing land supply and delivery test figures sets out where to look.
This is general guidance rather than 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. See PlanScope pricing if you want a drafted planning statement to build the precedent analysis into.
Frequently asked questions
Does a previous decision bind the council?
No. Consistency in decision-making is a material consideration, and a decision maker who departs from a comparable earlier decision should explain why. That is different from a binding precedent. The weight depends on how alike the proposals are, how close the sites are, whether the policy framework has changed and how fully the earlier decision was reasoned.
Which document on the register is most useful?
The officer report or delegated report. The decision notice records what was decided, but the report sets out why, which policies were applied, how objections were treated and what weight was given to each issue. For committee items, the minutes show whether members followed the recommendation and on what basis.
How do I search a register efficiently?
Use the advanced search. Set a date range, filter by application type, search by ward or parish rather than radius, and use description keywords officers actually type such as erection of, change of use or variation of condition. Read refusals as closely as approvals, because a refusal your scheme avoids is strong evidence.
How can I tell whether a permission was implemented?
Look for conditions discharge applications, the notice served before works start where the authority charges the levy, and building control records, then check dated aerial or street level imagery. Where more than three years have passed with nothing built, the permission has probably lapsed under section 91 unless a material operation was carried out in time.
What is missing from the online register?
Older applications, often pre-2000, are frequently paper records held by the authority but not digitised. Enforcement records sit on a separate register under section 188 and the case files are generally not public. Section 106 agreements are often absent even where the decision notice refers to one, so ask for a copy.
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.