The householder appeal procedure and its 12 week deadline

If a householder application has been refused, the householder planning appeal deadline is 12 weeks from the date on the decision notice, not the six months that applies to most other planning appeals. Miss it and the Planning Inspectorate will reject the appeal, because there is no general power to accept a late householder appeal.

That shorter deadline comes with a trade. The procedure is faster and free, and in exchange you cannot submit anything new. The inspector decides the appeal on the documents that were already in front of the council, plus a short statement on the appeal form. No revised drawings, no late daylight study, no arboricultural report that should have gone in with the application.

Which refusals go down the householder route

The expedited procedure is for development within the curtilage of a dwellinghouse: extensions, loft conversions, dormers, outbuildings, porches, dropped kerbs, boundary walls, hard surfacing. It covers a refusal and a grant subject to conditions you object to.

It is not available in several situations that catch people out:

1. Listed building consent appeals, which follow their own route even on a house.
2. Appeals where the development was the subject of an enforcement notice before the application was made.
3. Appeals against a refusal of a lawful development certificate.
4. Anything that is not householder development, including a new dwelling in a garden, a change of use, or works to a flat.
5. Appeals by someone other than the applicant.

A flat is the trap worth repeating. Work to a flat or maisonette is not householder development for these purposes, so a refusal there goes to the ordinary written representations route with the longer deadline.

Counting the 12 weeks

The clock starts on the date the decision notice bears, which is usually a few days before it lands in your inbox. It runs for 12 weeks, so a notice dated 3 March gives a deadline of 26 May.

Two practical habits avoid the common disaster. Put the deadline in a calendar on the day the notice arrives rather than when you decide to appeal, and submit at least a week early, because the appeal is only valid when the Inspectorate has everything it needs. An appeal submitted on the final afternoon with a missing document is an invalid appeal, and by the time anyone tells you, the deadline has gone.

Where the council refused on grounds you think can be designed out, you have a genuine choice to make inside those 12 weeks: appeal, or resubmit. A revised application within 12 months of the refusal normally attracts no fee under the concession usually called the free go, which means the cost comparison is mostly about time rather than money. Appeal if the refusal reason is a disagreement about policy or about whether harm exists. Resubmit if the refusal reason describes something you can change on the drawing.

What you can put in, and what you cannot

The appeal submission is the appeal form, a copy of the application, the plans as submitted, the decision notice, and your statement of case on the form itself. That statement is the only new writing allowed, and it has a limited length.

What you cannot do is fix the application at appeal. New plans are not accepted. Neither is a specialist report that answers the refusal reason but was not before the council. The inspector is deciding whether the council was right about the scheme as applied for.

There is one narrow exception worth knowing. Photographs of the site and its surroundings are generally accepted as a record of what the inspector will see at the site visit, so clear, dated photographs of the existing situation from the positions the refusal reason talks about are worth including. Photographs of what you intend to build are not evidence.

Why the original application statement decides the outcome

This is the part people only appreciate afterwards. Because no new material is admitted, the quality of the supporting statement submitted with the original application determines the quality of your appeal case.

If the refusal reason says the extension would be overbearing to the neighbour at number 14, your appeal is only as strong as whatever you already said about separation distances, the 45 degree line, the orientation of the neighbour's windows and the existing boundary treatment. A statement that covered those points gives the inspector a reasoned case to agree with. A one-paragraph covering letter gives them nothing, and the inspector will not do the analysis for you.

So the real lesson for anyone at the start of the process is to write the statement as though it will be read by an inspector rather than by a case officer. Read the refusal notice carefully against what you submitted before deciding, and work through reading a refusal notice and turning it into a plan before you choose a route. Where the reason relates to overlooking or an overbearing effect, the evidence that answers neighbour amenity refusals has to have been in the original pack.

A Planning Statement prepared at application stage is therefore doing double duty: persuading the case officer, and standing as your appeal case if that fails.

Neighbour comments at appeal stage

Comments that neighbours made to the council are forwarded to the Inspectorate and the inspector reads them. Neighbours are also notified that an appeal has started and can write in again.

There is an asymmetry here that irritates appellants. Third parties may comment on the appeal, while you may not add evidence. The inspector is expected to weigh late third party comments on the same basis as the rest of the material, so a new objection raising an entirely new issue usually carries limited weight. If objectors raise a point of fact that is simply wrong, you can write to the Inspectorate correcting the fact, and that correspondence is distinct from adding evidence. Objectors have their own set of steps available once proceedings begin, set out in what objectors can do once a planning appeal starts.

How long a decision takes and what it costs

There is no fee to appeal. Your costs are your own time and, if you use one, an agent's fee.

The Inspectorate publishes current timescales for each appeal type and the householder route is the quickest of them, since there are no statements of case to exchange and the site visit is normally unaccompanied. Check the published figures at the time you appeal rather than relying on what someone was quoted two years ago, because the Inspectorate's performance varies with caseload.

Costs awards are rare on this route. They are available where a party has behaved unreasonably, which in practice means a council that refused without evidence or an appellant who appealed against something plainly undeterminable. Do not plan around getting one.

When a full section 78 appeal is the right route

Sometimes the expedited procedure is the wrong tool even where it is available. If your case depends on evidence that did not accompany the application, the householder route will not let you in, and the better course is a fresh application with the evidence included, followed if necessary by an ordinary appeal.

The ordinary written representations procedure allows full statements from both sides, final comments, and a longer deadline. It is the route for anything outside householder development, and it is where a case that needs a daylight assessment, a highway safety analysis or an arboricultural method statement properly belongs.

One more thing worth saying plainly. An appeal is a review of the council's decision on the scheme you submitted, so the moment to win it is when you prepare the application.

Enter your postcode on PlanScope to draft the supporting statement for a householder application before the decision, rather than after it.

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.