People often approach planning permission as though the decisive question is whether the neighbours like a proposal. It isn’t. The council’s job is to judge the proposal against the development plan, national policy and other material considerations. That distinction — between a popularity contest and a policy judgement — is the one most people misunderstand about planning permission, and it explains almost everything that follows: why some applications sail through despite loud objections, why others fall over despite having no objectors at all, and why “the council said no” is rarely the full story.
In England, planning permission is required for “development” — broadly, building operations, engineering operations or a material change in the use of land or a building — but that permission does not always have to be obtained through an individual planning application. Permitted development rights grant planning permission for a good deal of ordinary home improvement, which we deal with separately. Where an application is needed, the process runs on a specific logic that’s worth understanding before you submit anything.
The system is plan-led, not vote-led
England’s planning system, like the devolved systems in Wales, Scotland and Northern Ireland, works from a development plan — typically including the council’s Local Plan and, where relevant, other parts of the statutory development plan — read alongside national policy. In England that national policy is set out in the National Planning Policy Framework (NPPF), which describes itself as a material consideration of critical importance to decision-making. It isn’t itself an Act of Parliament.
Planning law requires applications to be determined in accordance with the development plan unless material considerations indicate otherwise. That principle comes principally from section 38(6) of the Planning and Compulsory Purchase Act 2004, while section 70(2) of the Town and Country Planning Act 1990 requires the decision-maker to have regard to the development plan, so far as material to the application, and to other material considerations.
That legal framing matters because it defines what a council is actually allowed to weigh. A proposal is judged against planning policy and the specific harms and benefits that are relevant to the land-use decision. The number of objectors isn’t itself a material planning consideration. Ten letters repeating the same point do not acquire additional legal weight simply because ten people sent them; what matters is whether the representations raise valid planning issues and what weight those issues deserve. Local opposition or support alone is not a lawful reason to grant or refuse permission.
What happens after you submit
Most applicants benefit from talking to the council before submitting anything. Pre-application advice — often a paid service — lets a planning officer flag obvious problems early, which is usually far cheaper than finding them out after a refusal. Charging arrangements and the level of advice offered vary between councils.
Once an application lands, it goes through validation: a check that the correct forms, drawings, supporting documents and fee are all present. An incomplete submission can be treated as invalid until the necessary validation requirements are supplied, which quietly eats weeks that applicants often assume are being spent on assessment. Check the council’s published local validation list before you submit rather than after you’re told your application is invalid.
Valid applications are then publicised in the way required for that type of development. Depending on the application, that can involve neighbour notification, a site notice or a newspaper notice, as well as details being available through the planning register. The formal consultation period will normally last around 21 days, although the precise statutory publicity requirements and response period depend on the circumstances.
Statutory consultees such as highways bodies, the Environment Agency or Historic England may be asked for a formal view on applications that affect matters within their remit. Their specialist advice can carry significant weight, but it remains advice: the decision-maker has to weigh it alongside the other material considerations rather than treating it as an automatic veto.
The bulk of applications are determined under delegated powers — a decision made by a planning officer rather than by elected councillors. A smaller number go to a planning committee, although the precise circumstances in which an application is referred to committee depend on the council’s own delegation arrangements. Larger or more contentious proposals are among those more likely to reach committee.
Committee members are subject to the same planning decision-making framework as officers. A councillor cannot lawfully refuse an application simply because local residents are unhappy with it: opposition must be founded on valid material planning reasons. If a refusal is appealed and the council has behaved unreasonably in a way that causes unnecessary expense, an award of costs can be made against it.
A decision notice follows — approval, approval subject to conditions, or refusal. For a valid application in England, the statutory determination period is normally eight weeks for most applications, thirteen weeks for major development and sixteen weeks where an Environmental Impact Assessment is required, unless a longer period is agreed with the applicant. Larger or more complicated proposals can therefore take considerably longer in practice.
What councils are actually assessing
This is where the “policy judgement” idea earns its keep. An officer weighing up an extension isn’t asking “is this nice?” They’re working through a fairly consistent set of questions: does the design, scale and massing sit comfortably with the character of the area and the host building? Does it harm neighbouring amenity through loss of privacy, overshadowing, or an oppressive sense of enclosure? Does it affect highway safety or parking provision? Is there a heritage constraint — a listed building, a conservation area — that changes the test being applied? Are there trees, ecology, or flood risk issues on or near the site?
Many of these questions do not have a fixed numerical answer. A two-storey side extension that would be perfectly acceptable on a generous plot might be refused on a tight one where it crowds a neighbour’s main window. A rooflight that’s unremarkable on a modern estate might be resisted in a conservation area where the roofscape is itself part of what’s protected. This is genuinely a judgement exercise, informed by policy, planning history and site-specific evidence — not a checklist with pass marks.
Material considerations, in plain terms
A “material consideration” is simply something legally relevant to the planning decision being made. Design and appearance, residential amenity, highway safety, heritage significance, ecology, flood risk and relevant planning policy are among the recurring cast.
What a material consideration is not is anything the planning system generally treats as a purely private interest or otherwise outside the land-use decision — most importantly, the effect of a proposal on property values, loss of a private view, most private boundary disputes, and straightforward commercial competition between businesses. Loss of a private view should not, however, be confused with issues such as overlooking, daylight and sunlight impacts, overshadowing or an oppressive effect on residential amenity, which can be material.
At a glance: what usually counts
| Usually a material planning consideration | Usually not a material planning consideration |
|---|---|
| Overlooking and loss of privacy | Loss of a private view |
| Daylight, sunlight and overshadowing impacts | Reduction in property value |
| Design, scale, appearance and materials | Private boundary disputes |
| Highway safety, traffic and parking | Restrictive covenants |
| Heritage and conservation impacts | Commercial competition or loss of trade |
| Ecology, trees and flood risk | Personal dislike of the applicant or their motives |
This isn’t an exhaustive legal checklist, and the weight given to a material consideration depends on the particular application. The important distinction is between an effect on the use and development of land in the public interest and a purely private concern.
This distinction trips people up constantly, on both sides of an application. Objectors sometimes assume their strongest argument is that a development will devalue their house; it won’t influence the outcome, because it isn’t a matter the council is normally entitled to take into account. Applicants sometimes assume a permission removes every other legal complication on a site, when in fact ownership disputes, restrictive covenants and private rights of way are civil matters that sit outside the planning permission itself and may have to be resolved separately.
Conditions aren’t optional extras
An approval frequently comes with conditions attached — a requirement to use specified materials, to submit a landscaping scheme, to restrict working hours during construction, to fit obscure glazing in a side window that would otherwise overlook a neighbour, or to begin work within a set time limit. These aren’t polite suggestions.
Failure to comply with a condition is a breach of planning control and can lead to enforcement action, including the service of a breach of condition notice. Where a condition requires further details to be submitted and approved, the relevant approval or discharge procedure should be followed. Where the aim is instead to remove or vary a condition, an application under section 73 of the Town and Country Planning Act 1990 may be available. The government’s planning conditions guidance explains the framework in more detail. Quietly ignoring a condition and hoping nobody notices is not a substitute for either route.
Devolved and different
Planning law and policy are devolved matters. Wales has its own devolved planning policy and legislation. Future Wales: The National Plan 2040 has development-plan status, while Planning Policy Wales is the principal statement of national planning policy rather than the NPPF.
Scotland’s system operates principally under the Town and Country Planning (Scotland) Act 1997, as amended, including by the Planning (Scotland) Act 2019. National Planning Framework 4 forms part of the statutory development plan alongside the relevant Local Development Plan, and planning applications can be submitted online through ePlanning.scot.
Northern Ireland’s system runs principally under the Planning Act (Northern Ireland) 2011, following the transfer of responsibility for most planning functions to district councils in 2015. The Northern Ireland Planning Portal accepts applications for the Department for Infrastructure and ten of Northern Ireland’s eleven councils; Mid Ulster District Council operates its own system.
The broad principle — decisions made against a development plan and material considerations, rather than by popular vote — holds across all four nations, but the detail of policy, terminology and process genuinely differs, so a rule of thumb learned from an English case shouldn’t be assumed to transfer automatically.
This article focuses primarily on the process in England, given the volume of applications made there, but readers in Wales, Scotland and Northern Ireland should check the equivalent national and local policy documents for their own authority before relying on any of the specifics above.
The thing worth taking away
Planning permission is best understood as an argument about impact, not an opinion poll about the applicant. Once that clicks, a lot of otherwise confusing outcomes make sense — why a much-objected-to scheme gets approved, why a quiet one gets refused, and why the strongest thing either an applicant or a neighbour can do is address the actual planning issues rather than the noise around them.
Our companion articles cover the professional help available for putting together an application, how to raise an effective objection to a neighbour’s scheme, and what to do if a decision goes against you.
