When an application is invalid rather than refused

If your planning application is invalid not refused, nothing has been decided. The council has not considered your scheme, no determination period has started, and there is no right of appeal because there is no decision to appeal against. That distinction catches self-builders out badly, because an invalidation letter looks and feels like a rejection while leaving you with none of the remedies a refusal would give you.

The fix is almost always administrative. Knowing which requirement you have missed, and whether the council is entitled to ask for it, is the whole of the problem.

Invalidation is an administrative act, refusal is a decision

A refusal is a determination under section 70 of the Town and Country Planning Act 1990. The council has assessed the proposal against the development plan and other material considerations and has said no, with reasons. You can appeal to the Planning Inspectorate under section 78.

An invalidation is the council saying it cannot entertain the application yet. Section 327A of the 1990 Act prohibits an authority from entertaining an application that does not comply with the statutory requirements, so a validation officer who returns your submission is following the Act rather than exercising discretion over your scheme.

Nothing about the merits has been engaged. The case officer may never have seen the drawings.

The national information requirements

These apply everywhere in England and come from Article 7 of the Town and Country Planning (Development Management Procedure) (England) Order 2015, with the fee regulations sitting alongside them.

• The standard application form, completed, in the form published by the Secretary of State.
• A plan identifying the land and any other plans and drawings necessary to describe the development.
• The ownership certificate, A to D, and the agricultural holdings certificate.
• The correct fee.
• A design and access statement where Article 9 requires one, which covers major development and, in a conservation area or World Heritage Site, development of one or more dwellings or 100 m² or more of floor space.

Ownership certificates are the quiet killer. Certificate B requires notice to be served on every other owner, and an owner for these purposes includes anyone with a leasehold interest of seven years or more unexpired. Tick A on a site where a neighbour owns a strip of the access and the certificate is false, which is a separate problem from invalidity.

Local lists and the two year rule

Beyond the national list, councils publish local information requirements under section 62(3) of the 1990 Act. This is where most disputes sit, because the local list is where flood risk assessments, arboricultural surveys, biodiversity information, parking surveys and drainage details get requested.

Article 11 of the Development Management Procedure Order limits what a local requirement can do. A local requirement only bites where it appears on a list the authority has published and that list was published within the two years immediately before your application, and the information sought is reasonable having regard to the nature, scale and location of the development, and material to the application.

Three tests, and each one is arguable:

Download the list and look at its review date before you argue anything. A checklist last published three years ago cannot be enforced as a local requirement, and pointing that out politely resolves more disputes than a long letter about reasonableness.

Why there is no appeal against a validation decision

Section 78 gives a right of appeal in three situations: refusal of permission, grant subject to conditions, and failure to determine a valid application within the statutory period. An invalidation is none of them.

So the routes open to you are different in kind:

1. Discuss it with the validation team and, if that stalls, the development management manager. Most invalidations are a missing certificate or an unpaid fee and resolve in a day.
2. Supply the item under protest, stating in writing that you do not accept the requirement was lawfully imposed. This preserves the argument without stalling the scheme.
3. Use the council's formal complaints procedure, then the Local Government and Social Care Ombudsman, where the issue is maladministration rather than planning judgement.
4. Apply for judicial review, which is a remedy of last resort with a three month limit and a costs risk that rarely makes sense for a minor application.

There is one practical variant worth knowing. If the application did comply with the requirements and the council simply refuses to accept it, the determination period arguably ran from receipt, which can support a non-determination appeal. That is a position to take with advice, not on a hunch, and it is a different exercise from appealing a prior approval refusal under Class MA, where a decision does exist.

What the determination clock is actually measuring

The eight weeks for a minor application, 13 weeks for a major and 16 weeks for development subject to environmental impact assessment all run from the day after the receipt of a valid application. Not from the day you uploaded it. Not from the day you paid.

Sit in validation limbo for five weeks and you have lost five weeks of programme with nothing to show. The 21 day publicity period cannot start either, so neighbour consultation, statutory consultee responses and the officer's site visit are all pushed back behind the delay.

For a self-builder with a build contract and a finance drawdown date, this is the single most expensive administrative failure in the process.

Challenging a requirement you think is unreasonable

Keep it narrow and evidenced. The argument that works is not "this is excessive" but a specific one, tied to one of the three Article 11 tests.

A worked illustration, clearly illustrative: a council's local list asks for a transport statement on all applications creating a new vehicular access. The scheme is a single dwelling on an existing drive serving two houses on an unclassified road with a 20 mph limit. The reply writes itself. No new access is created, the national threshold for a transport statement sits far above one dwelling, and the trip generation of one house cannot be material to highway capacity. Offer instead a short access note with visibility measurements taken on site.

That letter is two paragraphs. It names the requirement, applies the test, and offers a proportionate alternative. Validation officers accept that far more often than they accept a refusal to engage, because it gives them something to put on the file.

Getting validated on the first submission

Build the check into the work rather than treating it as paperwork at the end.

Pull the council's current local list and the national list and turn both into a line by line schedule against your drawings and reports. Confirm the ownership position from the title plan before you choose a certificate. Confirm the fee against the current national schedule, which has been indexed annually since April 2025. Where a local requirement is triggered by a constraint, check the constraint actually exists on your site using the public datasets rather than assuming the council is right.

Then name your files the way the checklist names the documents. It sounds trivial. A validation officer working through thirty submissions a week who cannot find your flood risk assessment will record it as missing, and you will spend a fortnight correcting a filename.

Working out which of the supporting reports your project actually triggers before submission is the difference between an eight week determination and a sixteen week one.

This is general guidance, not 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.

Enter your postcode on PlanScope to see which documents your application is likely to need before you pay the fee.