Invalid is not refused
Validation checks whether the required application information and fee have been provided. A later planning assessment considers whether the proposal should receive permission. Passing the first check does not guarantee passing the second. [1]
Equally, an invalidity letter is not a design verdict. Before redesigning the project, establish whether the problem is a missing document, an inaccurate certificate, an incorrect fee or information that does not meet the relevant requirements. Council validation guidance identifies these submission checks. [2]
Find the precise gap
Ask the council to connect each outstanding item to the national requirements or the applicable local list. A request for “better plans” is not enough to organise a response: ask which view, scale, dimension or relationship cannot be understood. The statutory requirements call for plans identifying the site and describing the development adequately. [3]
Practical checks include comparing the application description with the drawings, checking that existing and proposed sheets are distinguishable, and confirming that the site boundary is consistent throughout the package. Use a schedule recording each council comment, the corrective action and the replacement file.
Correct the package without creating new inconsistencies
Send a coordinated response rather than a succession of unexplained uploads. If a drawing is replaced, identify its new revision and the sheet it supersedes. Where a certificate or notice is the problem, deal with the underlying requirement; merely changing a tick-box does not establish that the necessary notice was served. [3][4]
Retain the invalidity letter and your response. They provide a useful record if there is later disagreement about what was requested or when the complete material was supplied.
When does the decision period start?
The statutory decision period runs by reference to receipt of a valid application, including the required information and fee. Time spent with an incomplete submission should not be confused with the ordinary period for determining a valid application. Obtain the council's confirmed valid date and target date. [5]
What if you disagree with a local information demand?
Article 12 provides a formal procedure for disputing specified local validation requirements. The applicant explains why the information is not reasonable or material and asks for the requirement to be waived; the council must respond through the prescribed process. [6]
Do not treat that as a general appeal against an invalidity email or a right to omit national requirements. If the disagreement persists, check the procedure and subsequent appeal options with a planning adviser before assuming that an ordinary decision deadline has started. [6]