Predetermination and bias at planning committee

A councillor is allowed to hold an opinion about a planning application and still vote on it. Predetermination at a planning committee is narrower and far more serious. It means the member had already closed their mind, so neither the officer's report nor the debate in the chamber could have changed the outcome. That is a ground on which the courts will quash a permission or a refusal. Predisposition, which is simply having a view, is ordinary democratic behaviour, and Parliament has said so in statute.

The distinction matters to objectors and applicants for different reasons. An objector who has watched a member say the right things may assume the decision is in the bag. An applicant who has heard a member promise refusal may assume the decision is already lost. Both are usually wrong.

The line between predisposition and predetermination

Predisposition is a starting point. A member elected on a promise to protect a green wedge arrives at committee with a view about development on the edge of the settlement, and nobody expects otherwise. They may have said so in a leaflet, at a public meeting or in the local paper.

Predetermination is the surrender of judgement. The member has bound themselves to a result in advance and treats the committee as a formality. The legal question is not whether they were neutral in the weeks before, it is whether their mind was still open at the point the vote was taken.

Courts approach this through the eyes of a fair-minded and informed observer. Would that observer conclude there was a real risk the member was no longer capable of being persuaded by the material before them? The test is objective, so a member's own assurance that they listened carefully carries limited weight on its own.

What section 25 of the Localism Act protects

Section 25 of the Localism Act 2011 was written to stop councillors being silenced. It provides that a decision-maker is not to be taken to have had a closed mind just because they had previously done anything that directly or indirectly indicated the view they took, or would take, on a matter relevant to the decision.

In practice that protects campaigning, canvassing and public comment. A member can tell residents they share their concerns about traffic on a narrow lane and then sit on the committee that determines the application.

What section 25 does not do is licence genuine predetermination. It changes the inference a court may draw from prior statements. It does not make an actually closed mind lawful. There is a real difference between a member who says they have serious concerns about highway impact and one who says they will vote against whatever the officers recommend. The first is an opinion. The second is a surrendered discretion.

Interests that stop a councillor voting

Conduct rules sit alongside the common law. A member with a disclosable pecuniary interest in the matter must register it and must not participate in the discussion or the vote, under sections 30 and 31 of the Localism Act 2011. Failure to register or declare such an interest is a criminal offence, which is a sharper consequence than anything the standards regime itself can impose.

Other interests are handled by the code of conduct each authority must adopt under section 27 of the same Act, and the thresholds vary between councils. Common examples include a close family member living next to the site, membership of an applicant body, or a financial relationship with the agent.

Being the ward member is not usually a disqualifying interest, nor is sitting on a parish council that has objected, although many codes require the member to say so and to consider whether they should speak as a ward representative and then withdraw. Applications made by the council itself are the awkward case, and the safer authorities deal with them by a clear separation between the applicant service and the planning function.

Lobbying, site visits and social media

Lobbying a committee member is lawful and expected. Receiving representations from residents, agents and parish councils is part of the role, and refusing to meet constituents would be a strange reading of the rules.

But the risk lies in the answer. A member who listens, asks questions and says the matter will be decided on the policies and the evidence has done nothing wrong. A member who promises a vote has created the record a claimant will later rely on.

Site visits are fact-finding exercises. They exist so members can understand levels, distances and the relationship between buildings, and most constitutions prohibit debate, representations or anything resembling a hearing on site. Officers attend, members look, and the discussion happens in the chamber where it can be minuted.

Social media has made this harder rather than easier. A post saying a scheme will be thrown out on Thursday night is the clearest possible evidence of a closed mind, and it survives deletion. Comment threads, where members reply to residents in the days before committee, are now a routine part of judicial review bundles.

For larger schemes the applicant's own consultation record also becomes relevant, because a statement of community involvement sets out who was engaged and what changed as a result. That document, the officer's report and the applicant's planning statement are the material the committee is supposed to be weighing.

What happens to a decision that was predetermined

The route is judicial review in the Administrative Court, not a planning appeal. Planning judicial review claims carry a six week limit, which runs from the grant of permission rather than from the committee meeting, and permission to proceed is a separate hurdle before the substantive hearing.

If a claim succeeds the usual remedy is a quashing order. The permission falls away and the application returns to the authority to be decided again, often before a differently constituted committee and with a fresh officer report. The applicant does not win and the objector does not win; the decision is simply taken again, lawfully.

Where only one member of a large committee is said to have been predetermined, the court looks at whether that member's participation infected the collective decision. The answer depends on the size of the majority, the member's role in the debate and whether they chaired the meeting. This is one of the less predictable areas, and similar-looking cases have gone different ways on the detail of what was said and when.

Complaining about a councillor's conduct

A conduct complaint goes to the authority's monitoring officer under the arrangements it must maintain under section 28 of the Localism Act 2011. The investigation is about the member's behaviour against the code, and it runs on its own timetable.

Be realistic about what it can achieve. Since the Standards Board regime ended there is no power to suspend or disqualify a councillor for a code breach. Sanctions are limited to findings, censure, removal from a committee or required training, and none of them undoes a planning permission.

Pecuniary interest breaches are different, because those are police matters rather than standards matters. If the concern is that a member voted on an application in which they had a registered financial interest, say so explicitly in the complaint.

What a court actually looks for

The documentary record does most of the work. Minutes, the webcast, the officer report, the member's own written and recorded words, and the sequence in which all of it happened.

Judges ask whether the member engaged with the material. Did they ask questions of officers? Did they respond to the debate? Was the committee given the policy analysis and the consultation responses before it voted? A member who voted against a recommendation after a long discussion of the heritage balance is in a very different position from one who announced the result a week earlier.

For objectors there is a practical lesson in that. Conduct arguments are hard, slow and rarely decisive. Arguments about material considerations, about whether a report misdescribed a policy or omitted a consultee response, succeed more often and cost far less.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it.

If you are preparing an application rather than watching someone else's, the index of all 66 report types shows which supporting documents councils expect for each kind of scheme, and you can enter a postcode on PlanScope to see the constraints that apply to your site.

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