Heritage Statement Cost in Richmond upon Thames

A heritage statement is a written assessment, submitted with a planning or listed building consent application, that explains the significance of a heritage asset affected by the proposal and analyses how the proposed works will affect that significance. It is sometimes called a heritage impact assessment, a heritage impact statement or a statement of significance, and while there are shades of difference between those labels, they all do the same essential job: they set out what is special about the historic building or place, and they show — honestly and with evidence — what the proposal will do to it. In a heritage-rich borough like Richmond, it is one of the documents most frequently required.

The reason the cost varies so much is that a heritage statement is not a fixed product. It is a piece of research and analysis whose depth is meant to be proportionate to the importance of the asset and the scale of the change — that proportionality is written into national policy. A statement for repainting a shopfront in a conservation area is a very different, much smaller exercise than a statement for altering a Grade II* listed house, and it would be wrong, and wasteful, to charge or write them the same. So the price you are quoted should reflect the specific asset and the specific proposal, which is exactly why a credible quote starts with understanding both.

There are two broad situations that generate most residential heritage statements in Richmond. The first is a listed building: any works to a listed building that need listed building consent — and many alterations do, inside as well as out — require a heritage statement explaining the building's significance and the impact of the works. The second is a conservation area: works within one of Richmond's many conservation areas, or works that affect the setting of a listed building or the character of an area, frequently require a heritage statement as part of the planning application. These two situations sit at different points on the cost scale, and understanding which you are in is the first step to understanding the price.

This page assumes you have a project on or near a heritage asset in Richmond and want to understand what a heritage statement will cost and why. We cover the difference between listed-building and conservation-area statements, the specific factors that drive the fee, what the document must contain, the national and local policy it has to satisfy, how it fits the wider application, the related reports you might also need, and the reasons a poor statement costs more than it saves. The theme throughout is value: a heritage statement is worth exactly what it does for your application, and getting it right is far cheaper than getting it wrong.

The single largest factor in what a heritage statement costs is whether the asset is a listed building or a property within a conservation area, because the two demand very different levels of work. A listed building is individually designated for its special architectural or historic interest, and a heritage statement for works to it has to engage closely with the specific fabric, plan form, features and history of that individual building — often inside and out, room by room where internal works are proposed. That is detailed, building-specific research and analysis, and it costs more. A property within a conservation area, by contrast, is not itself individually designated; the designation protects the character and appearance of the wider area, and the statement's focus is on how the proposal affects that area's character rather than the detailed fabric of one protected building.

In practical cost terms, a heritage statement for a straightforward proposal in a conservation area — a rear extension, new windows, a change of materials — is often at the lower end of the range, commonly a few hundred pounds to around £1,000 to £1,500, because the assessment is focused on character, appearance, materials and the relationship to the streetscape rather than on the intricate significance of an individually protected building. It still has to be done properly, and in a sensitive conservation area it can be substantial, but the baseline effort is lower than for a listed building.

A heritage statement for a listed building sits higher, typically £1,500 to £3,000 and often more, because it has to establish the significance of that specific building in detail — its date, development, architectural interest, historic associations, plan form, surviving historic fabric and features — and then assess the impact of the proposed works on each aspect of that significance. Internal alterations to a listed building, in particular, require a careful room-by-room understanding of what is original, what is later, and what contributes to the building's interest, which is genuinely detailed work. The more the proposal touches significant fabric, the more analysis is required, and the higher the cost.

There is a third, in-between situation worth naming: a proposal that is not on a listed building but affects the setting of one, or affects a locally listed (non-designated) heritage asset. Richmond has many listed buildings, and a scheme on a neighbouring or nearby plot can affect their setting, which triggers the need to assess that setting in the heritage statement — an exercise that can be as demanding as assessing the listed building itself. Establishing at the outset exactly which category your project falls into — listed, conservation area, setting of a listed building, or locally listed — is the first thing that determines the cost, and it is the first thing we check.

For listed buildings, the grade is a strong indicator of how much the heritage statement will cost, because grade broadly reflects significance, and significance drives the depth of assessment required. England's listed buildings fall into three grades: Grade II, the most common, for buildings of special interest; Grade II*, for particularly important buildings of more than special interest; and Grade I, for buildings of exceptional interest. National policy asks for great weight to be given to the conservation of a designated asset, and the more important the asset, the greater the weight — which in turn means the more rigorous and detailed the heritage statement has to be.

A heritage statement for works to a Grade II house is the everyday work of residential heritage consultancy in Richmond, and while it must be done properly, its cost is usually in the middle of the range. A statement for a Grade II* or Grade I building is a more demanding exercise: these are buildings of national importance, harm to which the NPPF says should be exceptional (Grade II*) or wholly exceptional (the highest significance), and any proposal has to be justified to a correspondingly high standard. The statement therefore has to research and articulate the building's significance in real depth and analyse the impact with great care, which takes more time and specialist skill and costs more.

It is important to understand that significance is not the same as grade, and cost tracks significance as much as label. Two Grade II buildings can differ enormously in the depth of statement they need: a modest Grade II terrace where you are making a minor, reversible change needs far less than a Grade II building of exceptional intrinsic interest where you are altering historic fabric. Equally, an undesignated building that positively contributes to a conservation area can carry real significance and merit a substantial statement. The consultant's job is to match the depth — and therefore the cost — to the actual significance and the actual proposal, which is exactly the proportionality national policy requires.

The other side of significance is the scale of the change. A heritage statement for a like-for-like repair, or a minor, wholly reversible alteration, is a smaller exercise than one for a major extension, a change of use, the removal of historic fabric, or works that affect the plan form or principal elevations of a listed building. The more the proposal engages with what makes the asset significant, the more the statement has to do, and the higher the cost. Two identical buildings can therefore generate very different heritage statement fees depending entirely on how ambitious the proposal is — which is why a credible quote always considers the scheme, not just the asset.

One of the most commonly overlooked drivers of heritage statement cost is setting. The setting of a heritage asset is, in Historic England's words, the surroundings in which the asset is experienced, and national policy is explicit that a heritage statement must describe not only the significance of the asset but also any contribution made by its setting. That matters for cost because a proposal can require a full heritage statement even where the building being worked on is not itself designated — if it lies within, or affects, the setting of a listed building, a conservation area, a registered park or garden, or another heritage asset.

Richmond is unusually rich in assets whose settings matter. Hampton Court Palace, Ham House, Marble Hill, Kew's historic buildings and the Royal Botanic Gardens, the many listed buildings around Richmond Green, Richmond Hill and the riverside, and the borough's registered historic parks and gardens all have settings that extend beyond their curtilage. Add the protected view from Richmond Hill — the only view in England safeguarded by its own Act of Parliament — and the Thames setting that runs through the borough, and it is easy for a residential proposal in Richmond to engage the setting of one or more heritage assets even when the plot itself carries no designation.

Assessing setting is skilled work, and it adds to the cost. It involves identifying which assets' settings are affected, understanding how those assets are experienced and how the proposal changes that experience — views towards and from the asset, its relationship to its surroundings, and the way it is understood and appreciated — and then judging the degree of any harm. Historic England's guidance note on the setting of heritage assets (GPA3) sets out a structured, staged approach to this, and following it properly takes time. A statement that has to assess setting seriously is therefore usually more substantial, and more expensive, than one confined to the asset's own fabric.

The practical point for budgeting is that you cannot judge the likely cost of a heritage statement from your own building alone. A completely unlisted, non-conservation-area house can still need a proper heritage statement if it sits in a prominent position affecting the setting of a nearby listed building or a protected view. This is precisely why we check the full heritage context of a Richmond plot at the outset — the designations on the plot and the assets around it — because the setting picture, as much as the building itself, determines how much work the statement involves and therefore what it costs.

Richmond upon Thames is one of the most heritage-rich boroughs in England, and that is the fundamental reason heritage statements are so common — and so often decisive — on applications here. The borough contains around 85 conservation areas, among the highest concentrations anywhere in the country, together with many thousands of listed and locally listed buildings and structures, registered historic parks and gardens, and scheduled monuments. For large swathes of the borough, a residential proposal will touch a heritage designation of some kind, which is why understanding the heritage statement — and its cost — is close to unavoidable if you are altering a property in Richmond.

The borough straddles the Thames and has a landscape and built heritage of national importance. Hampton Court Palace and its park, the Royal Botanic Gardens at Kew (a World Heritage Site), Ham House, Marble Hill, Strawberry Hill House, the Georgian and Victorian streets around Richmond Green and Richmond Hill, the riverside frontages, and the protected view from Richmond Hill all give the borough an exceptional historic character. The everyday housing stock reflects this too: Georgian and Victorian houses, Arts and Crafts and Edwardian streets, and interwar suburbs, much of it within conservation areas or contributing to the setting of grander listed buildings.

That density of designation is what makes Richmond distinctive from a heritage statement point of view. In many boroughs a heritage statement is an occasional requirement; in Richmond it is routine, because so much of the borough is designated. It also means the council's conservation and design expertise is well developed and its expectations are high — a superficial statement is more likely to be spotted and challenged here than in a less heritage-conscious authority. The upside is that a good, well-evidenced heritage statement, prepared by someone who understands Richmond's assets and policies, carries real weight with the council.

For a homeowner, the practical consequence is that the heritage statement is rarely optional and rarely trivial in Richmond. Whether you are extending a Victorian house in a conservation area near the river, altering a listed cottage in Petersham or Ham, or building on a plot that affects the setting of a nearby listed building, the heritage statement is likely to be a central document in your application — and its quality, more than its price, is what determines whether it helps or hinders. Understanding where your plot sits in Richmond's remarkable heritage geography is where a credible view of both the cost and the strategy begins.

A heritage statement is required in a range of situations, and knowing whether yours is one of them is the first step to budgeting for it. The clearest case is a listed building: applications for listed building consent, which are needed for most alterations, extensions, demolition and many internal works to a listed building, must be accompanied by a heritage statement explaining the building's significance and the impact of the proposed works. This has been a firm expectation for some time, and it applies even to relatively small changes to a listed building, because even small changes can affect significant fabric.

The second common trigger is a conservation area. Works within a conservation area — extensions, alterations, changes to windows, doors and materials, and certain demolition — frequently require a heritage statement as part of the planning application, so that the council can judge whether the proposal preserves or enhances the character and appearance of the area. Richmond's local validation requirements, prepared under the Town and Country Planning (Development Management Procedure) Order 2015, set out when supporting documents including a heritage statement are needed for applications in the borough, and given the number of conservation areas, this is a frequent requirement.

The third situation is where a proposal affects the setting of a heritage asset without being on it — a scheme near a listed building, in the setting of a registered park or garden, or affecting a protected view. Here the requirement flows from national policy (which requires the significance of any heritage asset affected, including the contribution of its setting, to be described) rather than from the property carrying a designation itself. This catches proposals that owners often assume are outside heritage control, which is why an early check of the surrounding assets is so important.

Beyond these, a heritage statement can also be needed where a proposal affects a locally listed (non-designated) heritage asset, where archaeology may be present, or where the council's validation list otherwise requires it for the type and location of the application. The practical rule for Richmond is simple: because so much of the borough is designated, assume a heritage statement may be needed and check the position at the outset, rather than discovering at validation that the application is incomplete without one. We establish exactly what is required for your specific proposal before any drawings are finalised.

A heritage statement is not written in a vacuum; it exists to satisfy a specific legal and policy framework, and understanding that framework explains both what the statement has to contain and why its depth — and cost — must be proportionate to the asset. The statutory foundation is the Planning (Listed Buildings and Conservation Areas) Act 1990. That Act creates the requirement for listed building consent and, critically, places duties on the decision-maker: under section 16 (and section 66) the council must have special regard to the desirability of preserving a listed building, its setting and its features of special interest, and under section 72 it must pay special attention to the desirability of preserving or enhancing the character or appearance of a conservation area. The heritage statement is the document that gives the council the information it needs to discharge those duties.

The policy framework is the National Planning Policy Framework (NPPF), most recently updated in December 2024, in its chapter on conserving and enhancing the historic environment. Paragraph 207 is the one that directly generates the heritage statement: it requires an applicant to describe the significance of any heritage assets affected, including any contribution made by their setting, with the level of detail proportionate to the assets' importance and no more than is sufficient to understand the potential impact of the proposal on their significance. That single sentence is why a heritage statement's cost scales with the asset — the policy itself asks for more detail on more important assets and less on lesser ones.

The NPPF also sets the tests the statement's impact analysis has to engage with. Great weight must be given to the conservation of a designated heritage asset, and the more important the asset the greater that weight. Where a proposal would cause harm, the framework distinguishes between substantial harm (or total loss) and less than substantial harm: substantial harm to a Grade II listed building should be exceptional and to the highest-significance assets wholly exceptional, and any harm requires clear and convincing justification, weighed against the public benefits of the proposal. A competent heritage statement is written to demonstrate that harm has been avoided or minimised, and where any residual harm remains, to frame it correctly within these tests.

Underpinning all of this is guidance from Historic England — in particular the Good Practice Advice notes on managing significance in decision-taking (GPA2) and the setting of heritage assets (GPA3), and the long-established Conservation Principles, which set out the different kinds of heritage value (evidential, historical, aesthetic and communal). A heritage statement prepared to this framework — statutory duty, NPPF, and Historic England guidance — is one that answers the council's questions in the terms the council must decide the application. That is what a properly prepared statement pays for, and it is why a statement that ignores the framework, however cheap, tends to fail.

The London Borough of Richmond upon Thames adopted a new Local Plan and Policies Map on 7 October 2025, replacing the previous 2018 Local Plan, and it is the local policy framework against which a heritage-affecting proposal — and the heritage statement that supports it — is now assessed. The plan is organised partly around the borough's local character, with heritage and design addressed together in its Local Character and Design chapter, and it carries the borough's long-standing, strongly protective approach to its conservation areas, listed buildings, registered parks and gardens, protected views and the setting of the Thames. The Inspectors found the plan sound before it was adopted, so this is settled policy that a heritage statement has to engage with.

Richmond's approach to heritage is unusually detailed because the borough has so much to protect. Each of the borough's roughly 85 conservation areas has its own conservation area appraisal or statement describing what gives that area its character — the rooflines, materials, boundary treatments, building lines, spaces and features that matter — and a heritage statement for a proposal in a conservation area is expected to engage with the relevant appraisal for that specific area. This is one reason a genuinely local heritage statement is more useful than a generic one: it can point to the character described in the borough's own documents and show how the proposal responds to it.

For listed buildings, the borough's policy and its published guidance make clear that alterations must respect the significance and special interest of the building, that historic fabric should be conserved, and that harm must be justified against the tests in national policy. Richmond publishes its own guidance on heritage statements, setting out what it expects such a document to contain and reinforcing the national requirement that the level of detail be proportionate to the significance of the asset and the impact of the proposal. A heritage statement written with that local guidance in mind is one that answers the questions this particular council asks.

The practical implication for cost is that a heritage statement in Richmond is not a generic national template; it has to be tailored to the borough's policies, the specific conservation area appraisal or listing, and the borough's expectations. That tailoring is part of what you pay for and part of why quality matters more than price here — a statement that engages properly with Richmond's Local Plan and the relevant conservation area appraisal carries real weight, while one that ignores them tends to be treated as boilerplate. We prepare heritage statements to the borough's own framework, which is what makes them effective with Richmond's officers.

Understanding what a heritage statement contains explains where the cost goes, because the price reflects the research and analysis inside the document rather than its page count. A proper heritage statement has a clear structure. It identifies the heritage asset or assets affected and their designations; it describes the asset — its history, development, architectural and historic interest — drawing on documentary research and a site inspection; it assesses the significance of the asset, setting out what is important about it and why, including the contribution made by its setting; it describes the proposal; and then it analyses the impact of the proposal on that significance, concluding on the degree of any harm and how it has been avoided, minimised or justified. Each of those stages takes real work.

The significance assessment is the heart of the document and the part that most drives the cost. For a listed building this means understanding the specific building — its phases of construction, its plan form, its surviving historic fabric and features, and what contributes to its special interest — which usually requires a careful site inspection and, for more important assets, documentary and archival research into the building's history. This is the part that separates a real heritage statement from a superficial one, and it is why a statement for a significant listed building costs more than one for a simple change in a conservation area: there is genuinely more to research and understand.

The impact assessment is the second substantial part. Having established what is significant, the statement analyses how the proposal affects each aspect of that significance — which elements are altered or lost, which are retained or revealed, and whether the overall effect is neutral, beneficial, or harmful, and if harmful, to what degree. This has to be argued in the terms national policy uses, so that the council can weigh it under the correct tests. A well-argued impact assessment is what turns a description of a building into a document that actually supports a planning decision, and it is skilled work.

Supporting all of this are the site visit, the research, and any illustrative material — historic maps, photographs, references to the listing description and the conservation area appraisal, and annotated drawings showing what is being retained and changed. The site visit is essential and non-negotiable for a listed building; a statement written without one, from photographs alone, is a warning sign of a statement that will not stand up. When you pay for a heritage statement, you are paying for someone with the right expertise to visit, research, understand and argue — and it is that expertise, not the length of the finished document, that determines both its cost and its worth.

Pulling the drivers together, the cost of a heritage statement in Richmond is determined by a handful of factors, and understanding them lets you predict roughly where in the range your project will sit. The most important is the type and importance of the asset: a conservation-area statement sits lower, a Grade II listed building in the middle, and a Grade II* or Grade I building, or a highly significant asset, higher. The scale and nature of the proposal is next: minor, reversible works cost less to assess than major alterations, extensions, changes of use or works affecting historic fabric and principal elevations.

The setting dimension is a third factor, and one that can raise the cost of a statement even where the building itself is undesignated — assessing the effect on the setting of a nearby listed building, a registered park or garden, or a protected view adds work. The amount of research required is a fourth: some buildings are well documented and quickly understood, while others need real archival and documentary research to establish their history and significance, which takes time. And the presence of archaeology, or the need for input from other specialists, can add both cost and time where a site has below-ground potential.

Against those upward drivers, some things keep the cost down. A modest, sensitively designed, reversible proposal on a lesser asset needs a proportionate — and therefore smaller — statement. A well-documented building, a clear conservation area appraisal, and a proposal that plainly preserves or enhances the asset all make the statement quicker to write. And a statement prepared alongside the design, by the same team that is designing the scheme to respect the heritage in the first place, is more efficient than one commissioned separately and after the fact to justify a scheme that was not designed with the heritage in mind.

As a rule of thumb for Richmond residential projects: expect the lower hundreds to around £1,000–£1,500 for a straightforward conservation-area statement; roughly £1,500–£3,000 for a typical Grade II listed building alteration; and more, sometimes considerably more, for Grade II*/Grade I buildings, complex settings, or schemes involving significant harm that must be carefully justified. These are honest ranges rather than a single price, because a single price would either overcharge the simple jobs or under-serve the complex ones. We quote a fixed fee for your specific asset and proposal once we understand both, so you know the number before you commit.

It is tempting, faced with a required document, to treat a heritage statement as a commodity and buy the cheapest one available. In Richmond in particular, that is usually a false economy, and it is worth understanding why. A heritage statement is not a form; it is the evidence and argument on which the council decides whether your proposal harms a protected asset. A thin, generic statement — the kind sometimes offered very cheaply, written from photographs without a site visit and without engaging the specific building, conservation area appraisal or local policy — frequently fails to answer the council's real questions. In a heritage-conscious borough with experienced conservation officers, that failure is spotted.

The consequences of a poor statement are expensive in ways that dwarf the saving. At best, the council asks for further information, delaying the application by weeks or months while a proper statement is produced — often meaning you pay twice. At worst, the application is refused on heritage grounds because the statement failed to demonstrate that harm had been avoided or justified, at which point you face the cost, delay and uncertainty of revising the scheme and reapplying, or appealing. Set against the few hundred pounds saved on a cheap statement, the cost of a refusal — in fees, time, and a stalled project — is very large.

There is also a design dimension. A good heritage consultant does not simply describe a fixed scheme; they help shape it, so that the proposal is designed to respect the significance of the asset in the first place and the statement can honestly conclude that harm has been avoided or minimised. A cheap statement written after the design is fixed can only describe and, at best, defend what is already there — it cannot improve the scheme's chances by influencing it. The value of the statement, in other words, is highest when it is part of the design process, not a document bolted on at the end.

None of this means paying more than the job needs. Proportionality cuts both ways: a simple change on a lesser asset should not be over-engineered into an expensive report, and we would not do that. The point is to match the depth and cost of the statement to what the asset and proposal genuinely require, and to prepare it well enough that it does its job first time. That is what protects the far larger sums tied up in the project as a whole — and it is why we treat the heritage statement as a serious piece of work rather than a cheap add-on.

The prominence of heritage statements in Richmond is the product of a long history of protection specific to this borough. Richmond's exceptional built and landscape heritage — royal palaces and parks, riverside frontages, and streets of Georgian and Victorian houses — attracted early and sustained conservation interest, and the borough became one of the first and most thorough in London to designate conservation areas following the introduction of the concept in the Civic Amenities Act 1967. Successive rounds of designation have produced the borough's roughly 85 conservation areas, one of the densest networks anywhere in the country.

Alongside conservation areas, the borough accumulated a very large stock of listed buildings, reflecting the quality and antiquity of its architecture, and it maintains a local list of buildings and structures of local significance that fall short of national listing but contribute to the character of the area. Registered historic parks and gardens, scheduled monuments, and the uniquely protected view from Richmond Hill complete a heritage framework of national importance. The cumulative effect is that heritage designation is not the exception in Richmond but close to the norm across much of the borough.

As national heritage policy developed — through the 1990 Act, successive versions of national planning guidance, and now the NPPF and Historic England's good practice advice — the requirement to understand and articulate significance before altering a heritage asset became formalised in the heritage statement. In a borough as designated as Richmond, that formalisation turned the heritage statement from an occasional document into a routine one, and the borough's experienced conservation function set a high bar for what it should contain. The result is a local culture in which a serious, well-evidenced heritage statement is expected and rewarded.

Understanding this history helps explain both why you are likely to need a heritage statement in Richmond and why its quality matters so much here. The borough is not hostile to change — it consents many alterations and extensions to heritage assets every year — but it expects proposals to be founded on a genuine understanding of what makes the asset special, and it has the expertise to tell the difference between a statement that demonstrates that understanding and one that does not. That expectation, built up over more than half a century of protection, is the context in which every Richmond heritage statement is read.

Our approach to a heritage statement begins before the document — with the design. Because Crown Architecture designs the scheme as well as preparing the supporting documents, we design with the heritage asset in mind from the first sketch, so that the proposal respects the significance of the building or area and the statement can honestly conclude that harm has been avoided or minimised. This is the single most valuable thing about preparing the statement in-house alongside the design: the statement is not a defence bolted on at the end, but the articulation of a scheme that was heritage-led from the start.

We start by establishing the heritage context precisely: the designations on the plot and around it — listed building and grade, conservation area and its appraisal, locally listed assets, registered parks and gardens, protected views, and the settings that may be affected. This is what tells us the scope, and therefore the cost, of the statement, and it is why we can give an accurate fixed fee once we understand the asset and the proposal rather than a vague estimate. It also catches the cases people miss — the setting of a nearby listed building, or a protected view — before they become a validation problem.

We then carry out the work the statement requires: a proper site inspection (essential for a listed building), documentary and, where warranted, archival research into the building's history and development, and the significance assessment that sits at the heart of the document. We draw on the listing description, the relevant conservation area appraisal, historic maps and photographs, and the borough's own heritage guidance, so that the statement is genuinely local and specific rather than generic. The depth is matched to the asset and the proposal — thorough where the asset is significant and the change substantial, proportionate where it is not.

Finally, we write the impact assessment and conclusion in the terms the council must decide the application — significance, the contribution of setting, the degree of any harm, and how it has been avoided, minimised or justified against public benefit — and we integrate the statement with the drawings and the rest of the application so the whole submission is consistent. A heritage statement that matches the drawings, engages the local appraisal, and answers the statutory and policy tests is one that helps the application through, and that is what we set out to produce for every heritage-affected scheme in Richmond.

A heritage statement does not stand alone; it is one part of a coordinated application, and it works best when it is consistent with everything else in the submission. For works to a listed building, the application usually pairs a listed building consent application with a planning application (where planning permission is also needed), and both rely on the same drawings and the same heritage understanding. The heritage statement, the design and access statement (where required), and the drawings all have to tell the same story: here is the asset, here is why it is significant, here is the proposal, and here is why it respects that significance.

For a conservation area proposal, the heritage statement sits alongside the planning application drawings and any design and access statement, and its job is to show that the proposal preserves or enhances the character and appearance of the area — the test the council must apply under section 72 of the 1990 Act. Because the heritage statement and the design are so closely linked, preparing them together, by the same team, avoids the common problem of a statement that describes a slightly different scheme from the one on the drawings, which undermines the whole application.

The heritage statement also interacts with the schedule of works and the specification on a listed building. Listed building consent is concerned not just with what is done but how — the materials and methods used — so a heritage statement is often accompanied by, and cross-refers to, a schedule of works describing exactly what is proposed and how historic fabric will be treated. Getting these documents to agree with one another, and with the drawings, is part of producing a credible, approvable application rather than a set of documents that pull in different directions.

Because we prepare the drawings, the heritage statement and the other supporting documents together, the application we submit to Richmond is internally consistent by design. That consistency matters: an application where the statement, the drawings and the schedule of works all agree is materially more likely to be validated quickly and approved than one assembled from separately produced parts. The heritage statement is the document that ties the heritage case together, and it does that best when it is written as part of a single, coordinated submission.

A heritage statement is often not the only supporting document a Richmond application needs, and understanding the related reports helps you budget for the whole submission rather than just one line of it. The most closely related is the design and access statement, which explains the design rationale and how the scheme responds to its context; on heritage-affected schemes the heritage statement and the design and access statement are complementary and are prepared together. For a listed building, a schedule of works — a detailed description of exactly what will be done and with what materials — often accompanies the heritage statement, because listed building consent turns on the method as much as the outcome.

Depending on the site, other reports can be required. Where a proposal has below-ground implications on a site of archaeological potential, an archaeological assessment or a desk-based assessment may be needed, and archaeology can add both cost and time. Where trees are affected — common on Richmond's leafy, often historic plots — an arboricultural report is likely. Where the plot is near the Thames or in a flood zone, a flood risk assessment may be required, and biodiversity net gain now applies to most development, bringing its own assessment. Each of these is a separate report with its own cost, and identifying which apply early keeps the application complete and the budget realistic.

For proposals affecting the setting of a heritage asset, or in sensitive townscape, a townscape or visual assessment can be needed to demonstrate the effect on views and character, which overlaps with the setting analysis in the heritage statement. And on more significant listed buildings, a structural or condition survey may inform both the design and the justification for the works. The point is that heritage statements frequently sit within a small suite of documents, and the total cost of getting an application ready is the sum of the ones your specific site requires — not the heritage statement alone.

We identify the full set of documents a proposal needs at the outset, so you have a realistic picture of the whole cost rather than a surprise at validation. Because we prepare the drawings and the core supporting documents in-house and coordinate any specialist reports, we can keep the suite consistent and avoid duplication — the heritage statement, design and access statement and schedule of works in particular are far more efficient, and far more coherent, when produced together than when commissioned piecemeal.

The process starts with establishing the heritage position, and on a heritage asset this is where the project is really shaped. We confirm the designations affecting the plot and its surroundings, obtain the listing description and the relevant conservation area appraisal, and form an early view of the asset's significance and the constraints and opportunities it presents. This is also where we scope — and can then fix the fee for — the heritage statement, because the asset and the proposal together determine how much work it involves. Getting this right at the start avoids both under-preparing and over-spending.

With the heritage context understood, we develop the design to respect it, and on a sensitive listed building or a prominent site we often recommend pre-application advice from Richmond. Pre-app carries a fee and adds a few weeks, but on a significant heritage asset it can be genuinely worthwhile: a written steer from the council's conservation and planning officers on what will be acceptable reduces the risk of a wasted full application and signals that the scheme has been thought through. We advise on whether it is worth it for your specific asset rather than treating it as automatic.

We then prepare the full application — the drawings, the heritage statement, the design and access statement and any schedule of works, plus the specialist reports the site needs — and submit it through the Planning Portal, as a listed building consent application, a planning application, or both as required. We manage it through validation and determination, responding to the case officer and the conservation team, providing any further information, and negotiating amendments where that will secure consent. Where the heritage case is finely balanced, the quality of the heritage statement is often what carries the decision.

Once consent is granted, we deal with any pre-commencement conditions — which on heritage schemes often concern materials, methods, and sample panels — and, where the works proceed, we can carry the design through the technical and construction stages so that what is built matches what was consented. On a listed building especially, the discharge of conditions on materials and method is an important stage, and handling it properly is part of delivering the scheme the heritage statement described. The aim is a smooth path from a well-founded heritage statement to a consented and well-executed project.

Set in the context of a whole project, the heritage statement is usually a modest line — but a decisive one. On a residential alteration or extension to a heritage asset in Richmond, the heritage statement, at the lower hundreds to a few thousand pounds depending on the asset, is a small fraction of the total cost of the design, the application and the eventual build. Yet it is the document that most directly determines whether the application succeeds on heritage grounds, which is why it repays being done well: a small, well-spent line protects the far larger sums tied up in the project.

The council's own fees are separate and, for heritage work, often modest. Listed building consent applications do not carry the same application fee as a full planning application, and a householder or full planning application carries a fixed fee that is small relative to the whole project. Any pre-application advice carries a fee that varies with the scale of the enquiry. These council charges are worth knowing but they are not where the money is — the heritage statement, the drawings and the design work are the professional costs that make the application, and the build is the largest cost of all.

Because heritage statement pricing is genuinely variable, we quote a fixed fee for the statement once we understand the asset and the proposal, rather than a vague hourly estimate that could run away. That fixed fee reflects the real drivers — listed or conservation area, grade and significance, setting, research depth and the scale of the change — and it means you know the cost before you commit. Where the statement is one of several documents, we quote the whole suite so you can see the full cost of getting the application ready, not just one part of it.

The most efficient way to buy a heritage statement is as part of the design and application service, from the team designing the scheme. That avoids paying separately for a consultant to understand a building we already understand, avoids the inconsistency of a statement produced in isolation from the drawings, and means the scheme is designed to be heritage-acceptable in the first place. We build the heritage statement into a clear, fixed overall fee for the design and application work, so the whole cost — statement included — is known and predictable from the start.

Timescale is part of the cost picture, because a heritage statement has to be ready when the application goes in, and rushing it or discovering it late can delay the whole project. For a typical residential asset, a heritage statement takes in the region of two to four weeks to prepare once instructed, allowing for a site visit, the research, the significance assessment and the impact analysis, and the writing itself. A straightforward conservation-area statement can be quicker; a detailed statement for a significant listed building, involving archival research and a careful assessment of internal fabric, sits toward the longer end.

More complex cases take longer. Where the asset is highly significant, where setting has to be assessed across several nearby assets, where archaeology is involved, or where the scheme causes harm that has to be carefully justified, the statement can take six to eight weeks or more, and may involve input from other specialists. Building this time into the programme matters: the statement is not something to leave until the drawings are finished, because on a heritage asset the statement and the design should develop together, and a statement produced under time pressure at the end is more likely to be thin.

The site visit and the availability of background information are the main practical variables. A well-documented building with a clear listing description and a good conservation area appraisal is quicker to assess than one whose history has to be pieced together from archives. Access for the site visit — essential for a listed building, particularly for internal works — has to be arranged, and any restrictions on access can affect the timing. We plan the statement's timeline alongside the design so it is ready when the application is, rather than becoming the thing that holds the submission up.

The wider point is that, like the cost, the timescale is proportionate to the asset and the proposal, and planning for it is part of running the project well. Because we prepare the statement alongside the drawings, the two are ready together and the application can be submitted without waiting on a separately commissioned report. On a heritage scheme in Richmond, that coordination is one of the quiet advantages of having the design and the heritage statement produced by the same team.

Understanding why heritage-affected applications fail in Richmond is the best way to see what a good heritage statement is worth. The most common heritage reason for refusal is harm to significance that has not been justified — a proposal that alters or removes significant fabric, or affects the character of a conservation area or the setting of a listed building, in a way the council judges harmful and the application has not shown to be outweighed by public benefit. A heritage statement that fails to establish significance properly, or fails to demonstrate that harm has been avoided or minimised, leaves the council no basis to approve the scheme.

A second recurring problem is a statement that does not match the proposal or the drawings — describing a scheme subtly different from the one being applied for, or asserting that there is no harm without engaging the specific fabric affected. This undermines the whole application, because the council cannot rely on a statement that is inconsistent with what is actually proposed. It is a direct consequence of statements produced in isolation from the design, and it is exactly what preparing the two together avoids.

A third is the generic statement that ignores the local context — one that does not engage the relevant conservation area appraisal, the specific listing description, or Richmond's own heritage guidance, and instead offers boilerplate. In a borough with experienced conservation officers, this is quickly recognised and carries little weight. And a fourth is the statement written without a site visit, from photographs alone, which cannot credibly assess the significance of a building it has not seen — a particular problem for internal works to a listed building.

Every one of these failures is avoidable, and avoiding them is precisely what a properly prepared heritage statement does. A statement that establishes significance from a real site visit and genuine research, engages the local appraisal and policy, matches the drawings, and argues impact in the terms the council must apply, gives the council a sound basis to approve. That is the difference between a heritage statement that helps the application through and one that sinks it — and it is why the quality of the statement, far more than its price, is what matters on a Richmond heritage asset.

To make the numbers concrete, consider a common Richmond scenario: a Victorian family house in one of the borough's conservation areas near the river, unlisted itself but making a positive contribution to the character of the area, where the owners want a rear extension, a loft conversion with a dormer, and new windows. Because the house is in a conservation area, the planning application will require a heritage statement showing that the proposal preserves or enhances the character and appearance of the area — but because the house is not listed, that statement is focused on character and streetscape rather than on the detailed fabric of an individually protected building.

At the outset, we confirm the designations: the conservation area and its appraisal, whether any part of the works needs consent that conservation-area status affects, and whether the house sits in the setting of any nearby listed building or a protected view. We check the borough's local validation requirements to confirm the heritage statement is needed and what else the application requires. On a scheme like this the heritage statement is likely to sit toward the lower-to-middle part of the range — commonly a few hundred pounds to around £1,000–£1,500 — because the assessment is character-focused and the change, while real, is of a familiar kind that a well-designed scheme can readily show to preserve or enhance the area.

The statement itself draws on the conservation area appraisal to describe what gives the area its character — the building line, rooflines, materials, boundary treatments and rhythm of the street — and then shows how the extension, dormer and windows respond to that character: a rear extension subordinate to the main house and not visible from the street, a dormer sized and positioned to sit comfortably within the roofscape, and windows in materials and proportions that match the area's character. The impact assessment concludes, with evidence, that the proposal preserves the character and appearance of the conservation area — the section 72 test — which is exactly what the council needs to approve it.

Contrast this with the same works to a Grade II listed version of the house. Now the statement must assess the significance of that specific building in detail — its history, plan form, surviving historic fabric and features, inside and out — and the impact of each element of the works on that significance, with a much closer eye on internal alterations and any loss of historic fabric. That is a larger, more demanding exercise, typically £1,500–£3,000 or more, and the design itself has to be more conservative. The two scenarios use the same house and the same wish list, but the cost — and the depth — of the heritage statement differ substantially, purely because of the asset's status. That contrast is the whole story of heritage statement cost in one example.

Crown Architecture prepares heritage statements across Richmond upon Thames as part of a coordinated design and planning service, and that is the key to both their cost and their effectiveness. Because we design the scheme and prepare the heritage statement together, we design with the asset in mind from the first sketch, so the proposal is heritage-led and the statement can honestly conclude that harm has been avoided or minimised. That is a fundamentally stronger position than commissioning a statement separately to justify a scheme that was not designed around the heritage in the first place.

We know the Richmond context: the exceptional density of designation, the roughly 85 conservation areas each with its own appraisal, the many listed and locally listed buildings, the registered parks and gardens, the protected view from Richmond Hill and the river setting, the new Local Plan adopted in October 2025 and its Local Character and Design policies, and the borough's own heritage statement guidance. We use that knowledge to establish the heritage position accurately at the outset — including the settings and protected views people often miss — and to prepare statements that are genuinely local rather than generic, which is what carries weight with Richmond's experienced conservation officers.

We are also straightforward about cost. Heritage statement pricing is genuinely variable, so rather than a vague estimate we quote a fixed fee once we understand the asset and the proposal, reflecting the real drivers — listed or conservation area, grade and significance, setting, research depth and the scale of the change. Where the statement is one of several documents an application needs, we quote the whole suite, so you see the full cost of getting the application ready. And because we prepare the drawings and the core documents in-house, the statement is efficient and consistent with the rest of the submission.

Finally, we stay with the project. We manage the application through Richmond's process, respond to the conservation and planning officers, negotiate where that secures consent, and — once permission is granted — help discharge the conditions on materials and methods that heritage schemes so often carry, and carry the design through to construction where you wish. The aim is a single, accountable point of contact from the first assessment of the asset to a consented and well-executed scheme, rather than a heritage statement handed over in isolation and a client left to navigate the borough's conservation regime alone.

If you are planning works to a listed building, a property in a Richmond conservation area, or a scheme that affects the setting of a heritage asset, send us the address and what you have in mind, and we will tell you honestly whether a heritage statement is needed, roughly what it will cost for your specific asset, and how to design the scheme so the statement can do its job.