How to gather the documents a planning application needs to be validated

A planning application in England is validated when the council has four things: the completed form, the documents the national rules require, the correct fee and whatever its own local list asks for. The time the council has to decide does not start until then. So the job is to build one list from those four sources, give every item an owner and a date, and check each arrival against what was asked for. This guide covers England; the other UK nations have their own rules.

When the application is ready to go in

The client signs off the design and wants the application in. The RIBA Plan of Work generally places that at the end of Stage 3. The set is rarely ready when the drawings are, because part of it, such as a report from a consultant appointed late or a certificate that depends on who owns the land, is not yours.

The steps, and who does each today

1. Read the council's local list. A council may ask for supporting information beyond the national requirements, but only what is on a local list published on its website less than two years before you submit. Each item must be reasonable for the development's nature and scale and matter to the decision. The project architect often works from memory of the last application there, and lists change.

2. Write the national items on to the same list. Plans and drawings, the ownership certificate and agricultural land declaration, and for some applications a design and access statement and a fire statement. Add the biodiversity net gain information that article 7 of the procedure order requires, or a statement of why you believe the development is exempt. Householder applications are exempt. Since 6 August 2026 so are sites of 0.2 hectares or less and development permitted for five years or less, unless priority habitat on the site is affected, and the self-build exemption has ended. GOV.UK keeps the current list.

3. Give every item an owner and a date. Your drawings, the consultants' reports, the client's confirmation of who owns the land, for the certificate.

4. Ask, once and clearly. Each consultant is told what the council's list says their report must cover, in the council's words, and the date it is needed.

5. Chase. The architect or an assistant emails, waits and emails again.

6. Check each arrival. Is it the document asked for, about this site, complete and dated? Is the location plan at a suitable scale, typically 1:1250 or 1:2500, with the site edged in red and any other land the applicant owns edged in blue? Does the certificate match the ownership?

7. Work out the fee, then submit. Someone in the team submits the set, and the Planning Portal takes applications for every local authority in England.

8. Answer the validation officer. If the council says the application is not yet valid, the period has not started. If you think a request goes beyond what the law lets the council ask for, the route is a notice under article 12 of the procedure order, and that is a decision for the architect and the client.

Why do planning applications get invalidated?

An application is valid only when the council has all four: the completed form, the national information requirements, the correct fee and the items on its local list. GOV.UK's guidance is specific about the certificate: an application is not valid, and cannot be decided, unless the relevant ownership certificate has been completed, and completing a false or misleading one is an offence. The statutory period for a decision is 13 weeks for major development and eight weeks for most other applications, counted from the point the council has the fee, documents and information it needs. A set that goes in with one required item missing has not started that period. The client counts from the day you said it was submitted, and the gap between those dates is the conversation nobody wants. That is why a late consultant's report costs more than the days it is late.

Which steps an AI worker can take on

Several of these steps are lists, requests and checks that an AI worker can take on. An AI worker works to a written job, and a named person checks its work. It can build the checklist for each application from the council's local list and the national requirements, for the project architect to confirm. It can send each request and the reminders in wording you have approved. It can compare what arrives with what was asked for (the right site, every page, the date, the title the list uses) and ask again when one fails. And it can show the team each morning what the set still lacks and who holds it.

Fee proposals against the Plan of Work, timesheets and stage invoices are on our page for architects, with the roles that can take each of them on.

What waits for a person, and why

Whether a report is good enough, or a drawing right, is a professional judgement: the agent checks that a document is the one requested, not that its content is sound. The application type, the fee calculation and the ownership certificate are checked by one of your team, because a wrong certificate is the applicant's problem and yours. The submission itself is made by a person, since it goes to the planning authority in your client's name. Phone calls to a consultant who has stopped answering stay with the project architect, as does every exchange with the planning officer.

What to have ready before you start

• The local lists of the councils you apply to most, with the date each was published.

• One checklist template with the national items already on it.

• Your wording for a request to a consultant and for the first and second reminder.

• How many days before the target date an unanswered request goes to the project architect.

• The name of whoever checks the set and submits it.

Start your next application from a single written list, with an owner and a date against every item. How this job adds to the load on a practice manager is in how to scale an architecture practice without hiring.

An architecture practice's AI worker would keep the validation list, chase the consultants and show the gaps each morning, and your team would check the set and submit it. Bring us the validation list for your next application and talk to our agent.