What Is a Heritage Statement, and Which One Do I Need?

If a local planning authority's validation checklist asks for a "heritage statement" and you are not sure what that means in practice, you are not alone. It is an umbrella term, not the name of a single standard document, and different councils — and different applications — use it to mean different things.

Why is the term used so loosely?

The National Planning Policy Framework (NPPF) requires an applicant to describe the significance of any heritage asset affected by a proposal, and to assess the impact of the proposal on that significance, in a way proportionate to the asset's importance. It does not mandate a single document format for doing this. Historic England's Advice Note 12, Statements of Heritage Significance: Analysing Significance in Heritage Assets, sets out good practice for the significance half of that requirement; Historic England's Good Practice Advice Notes 2 and 3 (GPA2 and GPA3) cover decision-taking and setting. Local validation checklists then translate this into a requirement for "a heritage statement" without always specifying which parts of that process it expects to see, which is why the same phrase can mean a two-page summary for one council and a structured, multi-section document for another.

In practice, most projects affecting a listed building or a building within a conservation area need to cover two distinct things, usually in two stages: what is significant about the asset, and what effect the specific proposed works have on that significance.

What does this usually break down into?

• A Statement of Heritage Significance (SoHS) — establishes what makes the asset significant: its history, fabric, plan form, setting and the reasons behind its listing grade. It does not assess a specific design.
• A Heritage Impact Assessment (HIA) — takes a confirmed design and assesses how it affects the significance already established in the SoHS, identifying any harm and how it is mitigated or justified.

For a straightforward small-scale application — replacing like-for-like windows, for example — a council may accept a single combined document covering both in brief. For anything larger, or for a Grade I or Grade II* building, expect the two to be treated as genuinely separate stages, with the significance work done and agreed before the design impact assessment is written, not after.

How do I work out which one I need right now?

If you do not yet have a confirmed design, start with the Statement of Heritage Significance — you cannot properly assess impact on significance you have not yet established. If your design is already fixed and you need to submit an application, you need both the significance work and the impact assessment; if the significance work does not already exist for the property, it needs to be done first, not skipped.

A Preliminary Planning and Heritage Appraisal (PPHA) is a useful first step before either: it gives you an automated first read of the designation, likely consent requirements and applicable policy, so you know roughly what you are dealing with before commissioning the fuller documents.

Does the same heritage statement work for both listed building consent and planning permission?

Often, yes, in the sense that one well-structured set of significance and impact documents can support both consents where they are applied for together, since both assessments draw on the same underlying facts about the building. But the two consents test different things — planning permission considers the wider planning merits of a proposal, while Listed Building Consent considers effect on special architectural or historic interest specifically — so check with your case officer whether your authority wants the heritage material presented as one document referenced from both applications, or duplicated into two.

What happens if I submit an application without one?

Most authorities will not validate — that is, formally register and start the clock on — an application affecting a heritage asset without the heritage information their checklist requires. At best this means a delay while you provide it after the fact; at worst the application is returned as invalid, and you lose the time already spent waiting in the queue. Checking the validation checklist for your specific council before submission, and confirming what "heritage statement" means for your application in particular, is worth the ten minutes it takes.