Appeals where new policy is adopted after the decision

An appeal is determined on the development plan in force at the date the appeal decision is issued, not the date the council refused the application. Section 38(6) of the Planning and Compulsory Purchase Act 2004 requires the determination to be made in accordance with the plan unless material considerations indicate otherwise, and the plan means the plan as it stands when the decision is made. A local plan adopted three weeks before a decision letter is issued is the plan that applies.

That is settled, and it produces most of the tactical questions on a long-running appeal.

Which policies apply at the date of decision

The development plan comprises the adopted local plan, any adopted neighbourhood plan, and in London the London Plan. Where any of those changes between refusal and decision, the new document governs.

National policy is a material consideration rather than part of the plan, and the same timing logic applies: the inspector will apply the version of the NPPF current when the decision is issued. The Framework has moved repeatedly, in December 2023, December 2024 and again on 17 August 2026 when it was re-issued with policy-coded chapters in place of paragraph numbers. Appeals spanning one of those dates need their policy references checked and updated, and the edition stated whenever a policy is cited.

The practical consequence is that a statement of case written against a superseded edition reads as careless. Update it.

Where a policy has been superseded by one in substantially the same terms, say so and carry the argument across. Where the replacement differs, the difference is the point to address.

Weight given to emerging plans

An emerging plan is a material consideration, and the weight it carries depends on three things set out in national guidance: the stage the plan has reached, the extent of unresolved objections to the relevant policies, and the degree of consistency between those policies and national policy.

In practice the stages that matter are submission for examination, the inspector's report, and adoption. A policy at regulation 19 stage with no objections and clear consistency with national policy can carry moderate weight. The same policy with a dozen unresolved objections carries very little.

Argue weight policy by policy rather than plan by plan. An emerging plan can contain one policy ready for substantial weight and another that is heavily contested, and treating the document as a single unit loses that distinction.

Where the emerging plan would make the appeal scheme compliant, timing becomes a tactic. Where it would make it non-compliant, speed matters, which is covered below.

Late changes to national policy

A new edition of the Framework during an appeal usually prompts the Planning Inspectorate to invite comments from the main parties, and sometimes from interested persons, on its implications. Those invitations carry short deadlines, often two weeks.

Answer them precisely. The inspector wants to know which specific policies have changed, how the change bears on the issues already identified, and whether any evidence needs revisiting. A general restatement of the case wastes the opportunity.

Where the change affects the tilted balance, the housing land supply position or a protected area policy, set out the new test and apply it to the facts already in evidence rather than introducing new material. Inspectors are reluctant to admit new evidence at that stage, and an attempt to do so can draw a procedural objection from the council.

Making further representations in time

The appeal procedures set fixed dates for statements, interested party comments and final comments, and an inspector will not usually accept material after them without good reason.

A policy change is good reason. The route is to write to the case officer at the Inspectorate promptly, explaining what has changed, when, and why it bears on the appeal, and asking for the opportunity for the parties to comment. Do it as soon as the change happens rather than waiting for the Inspectorate to notice.

Keep the submission short and attach the policy extract. One page of focused analysis is read; twelve pages of restated case may be returned.

Where the change is large enough that the whole basis of the appeal has shifted, consider whether the written representations route remains appropriate or whether a hearing would allow the point to be explored. A request to change procedure late in the process is rarely granted, so raise it early.

Inspector requests for comments

Inspectors sometimes write to the parties with a specific question. Treat that letter as the most important document in the appeal, because it tells you exactly what the inspector is uncertain about.

Answer the question asked, in the order asked, with references to the evidence already before them. Do not use the opportunity to reopen settled points, which irritates and achieves nothing.

Where the question reveals a weakness you cannot answer, say so plainly and explain what weight you say should follow. An honest concession is better received than an evasion, and inspectors notice both.

Withdrawing and reapplying instead

Sometimes the better answer is to stop. Where new policy makes the appeal scheme clearly non-compliant, or where an adopted plan allocates the site for something different, continuing can produce a decision that sits on the record against the site.

A fresh application against the new policy framework, with the scheme amended to suit, often costs less in total than losing an appeal and then applying anyway. The free-go provision for a resubmission within 12 months of a refusal or withdrawal can apply, subject to the conditions, which makes the economics better than they first appear. The article on withdrawing an application before refusal covers the equivalent decision at application stage.

Against that, a dismissed appeal is not a permanent bar, and inspectors' conclusions on matters such as highway safety or heritage harm can be useful even in a dismissal. Weigh what the decision will say, not just whether it allows or dismisses.

Managing programme risk

Where you know a plan is approaching adoption, the programme becomes part of the strategy.

• Track the examination timetable and the inspector's report date on the authority's website.
• Where the emerging plan helps, consider a procedural route with a longer timetable so the decision lands after adoption.
• Where it harms, lodge promptly and prefer written representations, which are the quickest route.
• Keep the policy schedule in the statement of case in a form that can be updated in one place.
• Diarise the main party deadlines and leave capacity to respond to a policy change within two weeks.

A Planning Statement prepared at application stage should be written so the policy section can be refreshed without rewriting the assessment, because on a two-year appeal it will need refreshing at least once. Where the refusal reasons remain the real issue, the piece on reading a refusal notice and turning it into a plan sets out the first step.

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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.