Determination deadlines over Christmas and bank holidays

Planning deadlines do not move for bank holidays. The statutory determination period runs in calendar weeks from the day after a valid application is received, and Christmas Day, Boxing Day, New Year's Day and the Easter holidays all count as ordinary days inside it. An application validated on 15 December has its eight week date in the second week of February whatever the council's office hours were in between.

What does move is everything discretionary: validation, consultee responses, site visits, committee reports and the officer's ability to answer a phone. That gap between a fixed deadline and a paused organisation is where December applications go wrong.

How the statutory periods are counted

The Development Management Procedure Order sets the determination periods. Eight weeks for most applications including householder and minor development, thirteen weeks for major development, and sixteen weeks where an environmental statement accompanies the application.

The clock starts the day after the authority receives a valid application, which is not the day you pressed submit. An application is valid only when the fee has been paid and every national and local validation requirement has been met. If the council writes to you on 8 January saying that the location plan lacks a north point, the period starts after you supply it.

Consultation periods work the same way. The publicity period for most applications is 21 days from the date a site notice is displayed or a press notice published, and statutory consultees are given 21 days to respond. Those are calendar days.

None of these figures change because the office is shut.

Where the shutdown changes the arithmetic

The change is in the start date rather than the length.

Most councils close between Christmas and the new year, and many operate reduced staffing for the fortnight around it. Applications submitted on 20 December are commonly validated in the first full week of January. The submission date and the validation date therefore diverge by two or three weeks, and the entire statutory period shifts with it.

The same happens at the back end. A 21 day publicity period that starts on 19 December covers a fortnight in which almost nobody is reading site notices, so officers frequently extend it voluntarily, which in turn delays the officer report. Nothing prohibits a voluntary extension of publicity. It still eats the time you thought you had.

Committee cycles compound it. Most planning committees do not meet between the middle of December and the middle of January. If your application needs a committee decision, the practical determination date is the committee date, and a scheme that misses the December agenda waits until late January or February. Check the published committee calendar before you submit rather than afterwards.

Agreeing an extension of time before the break

The extension of time agreement is the standard answer and it has to be in writing.

The Order allows the applicant and the authority to agree in writing a longer period for determination, and where they do, the statutory period becomes the agreed date. Officers will usually ask for one in December because they know the arithmetic. Agreeing it costs nothing except the right to appeal for non-determination during the extended period.

Three points on drafting it. Agree a specific date rather than a number of weeks, because ambiguity about start dates is what caused the problem in the first place. Tie the date to the committee calendar if the application is going to committee. And confirm it by email rather than in a call, because the agreement has to be in writing to be effective.

If the officer asks for an open-ended extension, decline politely and propose a date. A dated extension can be extended again. An undated one has no endpoint.

The non-determination appeal and why December is the wrong month for it

Where the authority has not determined the application within the statutory or agreed period, the applicant may appeal on the ground of non-determination. That right exists and is occasionally the correct move.

It is rarely the right move in January. An appeal removes the application from the council entirely, so any prospect of a negotiated approval goes with it, and the Planning Inspectorate timetable will run longer than the delay you were complaining about. Written representations appeals take months. Householder appeals have to be lodged within 12 weeks of the decision notice, and other appeals within six months, so there is usually no urgency that justifies the move.

The exception is a scheme with a fixed commercial deadline, where a known appeal timetable is worth more than an unknown council one. Even then, take the decision on the numbers rather than on frustration.

Survey work over the shutdown

Programmes slip in December for reasons unrelated to the council.

Traffic counts taken in the second half of December are worthless because flows are unrepresentative, and the same applies to the whole of August. The neutral month convention exists precisely to stop this, and the detail is set out in traffic counts in neutral months and why August fails.

Parking surveys have the same problem in sharper form, because the published methodology specifies overnight counts on particular nights and excludes holiday periods. A survey run over the Christmas fortnight will be rejected by the highway authority, and the requirements are covered in parking surveys and the timing the methodology requires.

Ecology is quieter in December but not empty. Wintering bird surveys run October to March and a preliminary roost assessment can be done in any month. What cannot be done is anything that needs vegetation in leaf or animals active.

Submitting before or after the break

There is a real decision here and it depends on what you want.

Submit in mid-December if the application is straightforward, complete and unlikely to need a committee. Validation will be slow, but the clock will start in early January and you will be ahead of the new year rush that arrives in the second week.

Hold until January if the application is contentious, needs a committee, depends on a consultee who will be absent, or has any validation risk at all. A rejected submission in December wastes three weeks and you resubmit into the same queue you were trying to beat.

Either way, do the validation work before you submit. Pull the authority's current local validation checklist, confirm the fee against the current national fee schedule, and check that every drawing carries a scale bar and a north point. Most December validation failures are drawing conventions rather than missing reports, and the whole bundle for a given project type can be scoped from the 66 report types by category before you start.

A practical calendar

Work backwards from the outcome you need.

1. Identify the committee date you are aiming at, if any, from the published calendar.
2. Count back the officer report deadline, typically two to three weeks before committee.
3. Count back the consultation period of 21 days, extended if it spans the shutdown.
4. Count back the validation period, allowing two to three weeks in December rather than the usual few days.
5. Set your submission date from that, and if it has already passed, submit in January and stop pretending otherwise.

Then agree the extension of time in writing when the officer asks, and diarise the agreed date.

Check the current bank holiday dates published by government each year, because the substitute days for Christmas and Boxing Day move depending on which days of the week they fall on, and a substitute Monday shifts a committee cycle as effectively as the holiday itself.

Enter the postcode on PlanScope to see which reports a scheme needs before you commit to a submission date.

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.