Explainer
If you've been asked to provide a planning supporting statement — or you're trying to work out whether your application needs one — this guide will explain exactly what it is, when you need one, and what it should contain.
A planning supporting statement is a written document that accompanies a planning application and explains to the local planning authority (LPA) why the proposed development should be approved. It sets out the relevant planning policy and demonstrates that the proposal accords with it.
In short: it makes the case for your application. It connects what you want to build with the policy framework that governs planning decisions, and it addresses any potential concerns before the planning officer raises them.
Planning officers are busy. A clear, well-structured supporting statement that addresses the key policy tests up front makes their job easier — and significantly improves your chances of approval.
No, though the two are often confused. A design and access statement is a specific document required for certain applications — primarily those involving listed buildings, major developments, or sites in designated areas. It focuses on the design rationale and how access has been considered.
A planning supporting statement is broader. It addresses the full planning policy framework — national policy (the NPPF), the development plan, and any supplementary guidance — and demonstrates compliance with it. It can be submitted alongside a design and access statement, or instead of one where a DAS is not required.
There is no statutory requirement to submit a planning supporting statement with every application. However, it is strongly advisable — and in some cases effectively required — in the following situations:
A well-structured planning supporting statement typically covers the following sections:
There is no prescribed length. For a straightforward householder application — such as a single-storey rear extension — a well-written statement of 800 to 1,200 words across six sections is typically sufficient. For a major development, a full planning statement may run to 20 or more pages.
Quality matters far more than length. A concise, well-argued statement that directly addresses the relevant policy tests will carry more weight with a planning officer than a lengthy document that buries the key points in unnecessary padding.
No. Planning decisions involve professional judgement, and a statement is one material consideration among many. However, a well-prepared statement significantly improves the quality of your application and reduces the risk of refusal on policy grounds.
It also provides a record of the policy case made at application stage — which is important if the decision is challenged at appeal.
Important: A planning supporting statement is not professional planning advice. For complex, contentious, or listed building applications, you should work with a qualified planning consultant who is a member of the Royal Town Planning Institute (RTPI).
Planabl generates a policy-referenced first draft planning supporting statement in under 60 seconds. You enter the site address, development type, proposed works, and any relevant context — and Planabl produces a structured statement referencing the correct NPPF paragraphs for your development type, plus any local plan policies you provide.
The output is a professional first draft — a Word document you can download, review, and refine before submission. It won't replace the judgement of an experienced planning consultant on a complex application, but for straightforward householder applications it can save hours of drafting time.
No account needed. First draft free. Download as an editable Word document.
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