What happens in the first fortnight after you apply
The two weeks after you press submit decide when your eight week clock starts and who will write the report on your extension. Here is the sequence, and the small number of things worth doing while it runs.
Nothing visible happens for the first few days after a planning application goes in, and then everything happens at once. In the first two weeks your submission is checked for completeness, given a registration date that starts the eight week clock, handed to a case officer, advertised to the people around you, copied to any statutory consultees, and usually visited. Understanding that sequence is the difference between waiting anxiously and knowing what to look for on the council's website.
The single most important date is the validation date. Not the day you paid, not the day you uploaded.
The completeness check
Planning support staff, not the case officer, run the first check. They compare what arrived against two lists. The national requirements are set out in the Development Management Procedure Order 2015 and cover the standard application form, a location plan with the site edged red, existing and proposed plans and elevations drawn to a stated scale, the relevant ownership certificate, the agricultural holdings certificate, a Design and Access Statement where one is needed, and the fee. The local list is the council's own published validation checklist, and it varies considerably between authorities.
Common reasons a householder application is held:
- A location plan without the application site edged red, or at a scale the council does not accept.
- Drawings marked "do not scale" or with no scale bar.
- The wrong ownership certificate, which matters whenever the applicant is not the sole freeholder. The rules on ownership certificates A to D catch more applications than any other single item.
- A missing Design and Access Statement where the property is listed or in a conservation area.
- An underpaid fee. Some works attract no fee or a reduced one, and it is worth checking the fee exemptions and reductions before you assume the standard figure applies.
There is no statutory deadline for validation. That asymmetry is why a careful submission pays: an application held for three weeks over a certificate has lost three weeks of nothing.
Why the registration date starts the clock
Once the authority holds a valid application, it registers it. The determination period runs from the day after that date: eight weeks for householder and other minor applications, 13 weeks for major development, and 16 weeks where an environmental statement accompanies the application. Those periods come from the 2015 Order, and they are what the appeal right against non-determination hangs off.
The registration date also fixes the policy position in one practical sense. Officers assess against the development plan and the National Planning Policy Framework as they stand at the decision date, but the validation date is what councils use for their performance reporting and for the biodiversity baseline where net gain applies.
Check the date on the public register rather than assuming. If the register shows a validation date later than the acknowledgement email suggested, ask why.
Allocation to a case officer
Most authorities allocate within a few days of registration, either geographically or by case type. Householder work usually goes to a planning officer or technical officer with a large caseload, and the allocation appears on the application's web page.
Two things follow. First, you now have one named person to talk to, and one email address that will be on the file. Second, that officer will write the delegated report, so the way your Planning Statement frames the proposal against local plan policy is read by them and quoted by them. A short, policy-referenced statement saves the officer work and tends to be reflected in the report.
Be proportionate about contact. One courteous email offering access for the site visit is welcome. Three emails in the first fortnight are not.
Publicity and the consultation period
Article 15 of the 2015 Order sets the publicity requirements. For most householder applications the authority has a choice between notifying adjoining owners and occupiers by letter and posting a site notice, and for some categories a press notice is also required. Whatever route is chosen, the comment period is at least 21 days from the notice.
The 21 days are where the process becomes visible to everyone else. Comments appear on the public file as they are received in most authorities, sometimes redacted. Objections are not votes, and the officer weighs them only so far as they raise material planning considerations: overlooking, loss of light, parking, design, highway safety, harm to a heritage asset. Loss of a view, property values and the identity of the applicant are not material.
One practical point for householders. If a site notice is the chosen route and it falls off the lamp post in the first week, the authority may re-advertise and extend the period. That is irritating but normal.
Statutory consultees and the rest of the circulation
Alongside publicity, the application goes out to consultees. For a householder extension that may be nobody, or only the highway authority if an access is altered. For anything larger the circulation widens quickly: the lead local flood authority on surface water, the Environment Agency in Flood Zones 2 and 3, Historic England on works affecting the highest grade assets, the county archaeologist, the tree officer, environmental health on noise or extraction, and the parish or town council.
Statutory consultees have 21 days to respond. Internal consultees often take longer and are not bound by the same period. Responses land on the file in stages over several weeks, and the pattern of who objects and on what grounds is the clearest signal you will get about the eventual recommendation. There is a method to reading the officer's case file that is worth knowing before the responses start arriving.
The site visit
Officers usually visit in the first two or three weeks. For a householder extension the visit is short and focused on a handful of things: the actual relationship to the boundary and to neighbouring windows, the ground levels, the materials on the existing house, the width of the plot, whether the drawings match what is there, and the view of the proposal from the street and from neighbouring gardens.
Two preparations help. Clear access to the rear if the proposal is at the back, and leave the drawings you submitted available so any discrepancy can be resolved there and then. And if the drawings were measured from an old survey, say so before the officer finds a 400 mm error on the boundary.
Site visits are also where undisclosed features surface: a tree the survey missed, a difference in level that changes the overshadowing judgement, a neighbour's conservatory added since the aerial imagery was taken.
What is worth doing in these two weeks
Very little, deliberately. The useful actions are small:
- Confirm the validation date and the case officer from the public register.
- Offer access for the site visit in one email.
- Read the national and local validation lists against what you submitted, so you can fix a gap before the officer finds it.
- Speak to your immediate neighbours before the notice arrives, rather than after.
- Hold any revised drawings until the officer has commented, unless a plain error needs correcting.
Resist the urge to amend. Revisions in the first fortnight usually restart publicity and make the file harder for the officer to follow.
If you have not yet applied and you want to know which supporting documents your site will attract, you can enter your postcode and see what PlanScope flags against the mapped constraints before you commit to a submission.
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.
Frequently asked questions
When does the eight week period actually start?
From the day after the authority holds a valid application, meaning the correct form, plans, certificates and fee. If a document is missing, the clock does not run at all, however long the application has been sitting in the inbox. The decision notice and the online record both show the validation date, and that is the date to work from.
How long should validation take?
Most councils validate householder applications within five to ten working days, and busy authorities take longer. There is no statutory deadline for validation itself, which is why an incomplete submission is expensive in time. If you have heard nothing after two weeks, email the planning support team and ask whether the application has been registered.
Will I be told who my case officer is?
Usually yes. The validation acknowledgement normally names the case officer and gives a direct email, and the officer also appears on the public register entry for the application. On smaller authorities allocation can take a few more days because cases are batched by area or by type before they are handed out.
Do neighbours always get a letter?
Not always. Article 15 of the Development Management Procedure Order 2015 lets the authority choose between neighbour notification letters, a site notice, or in some cases a press notice, depending on the type of development. Many councils use site notices for householder applications and letters for larger schemes, and some publish only online alongside a notice on the street.
Can I change the drawings during the consultation period?
You can, but think about why. Submitting revisions in week two usually restarts publicity and can reset expectations with neighbours who have already commented. If the officer has flagged a clear problem at the site visit, a prompt amendment is sensible. Cosmetic changes are better held until the officer has formed a view.
What if the fee was paid but the application is still invalid?
Payment alone does not validate anything. Authorities routinely hold applications for a missing ownership certificate, an unscaled plan, a location plan without the site edged red, or a missing Design and Access Statement where one is required. The validation email lists what is outstanding, and the clock starts once the last item arrives.
Sources and further reading
This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.