Townscape and Visual Impact Assessment in Richmond

A Townscape and Visual Impact Assessment is a technical report that identifies and evaluates the likely significant effects of a proposed development on the townscape and on visual amenity. It separates two things that are easy to confuse. Townscape effects are effects on the physical, social and perceptual fabric of the built-up area itself — the buildings, the spaces between them, the streets, squares, gardens, roofscape and the character that all of that creates. Visual effects are effects on the views that people have: what a resident sees from a window, what a walker sees from a riverside path, what a visitor sees from a park or a hilltop. A proposal can have a townscape effect without a strong visual one, or a visual effect without a great townscape one; a good TVIA keeps the two clearly apart and assesses each on its own terms.

The word 'townscape' is used deliberately rather than 'landscape'. The Landscape Institute defines townscape as the landscape within the built-up area — the buildings, the relationships between them, the different types of urban open space including green spaces, and the relationship between buildings and open spaces. In a place like Richmond, that definition matters, because the borough's character is precisely this interplay of built form and green setting: villages of consistent scale set against parks, commons and the river, with roofscapes, building lines and boundary treatments that give each place its identity. A TVIA is the tool that describes that character carefully and then tests, honestly, whether a proposal preserves it, enhances it or harms it.

The document is prepared to a recognised professional methodology rather than being an unstructured opinion. That methodology is the Guidelines for Landscape and Visual Impact Assessment, third edition — GLVIA3 — published jointly by the Landscape Institute and IEMA and in force since 2013. GLVIA3 is not a rigid recipe; it is a framework for reaching and documenting professional judgements consistently, so that the reader can follow the reasoning from the baseline, through the identification of receptors and effects, to a clear conclusion. The assessor's job is to tailor the method to the specific place and project and to explain the rationale for the approach taken. That transparency is what gives a TVIA its weight: the case officer, and if it comes to it a planning inspector, can see exactly how each judgement was reached.

It is worth being clear about what a TVIA is not. It is not the same as a Design and Access Statement, though the two work together — the DAS explains and justifies the design, while the TVIA independently assesses its visual and townscape effects. It is not a Heritage Statement, though on many Richmond schemes the two overlap heavily, because the setting of listed buildings and conservation areas is often the very thing a view protects. And it is not simply a set of pretty pictures; the verified views and accurate visual representations are the evidence within the assessment, but the assessment is the reasoned analysis that uses them. Understanding those distinctions is the first step to commissioning the right document for your scheme.

There is no single national trigger that says 'a TVIA is required at this size'. Instead, the need for one flows from the sensitivity of the location and the potential of the proposal to affect townscape and views. In most of England a TVIA is associated with larger or taller schemes; in Richmond upon Thames the threshold is effectively lower, because the borough is so visually sensitive that even modest residential proposals can have a real visual effect. A rooftop addition, a mansard, an additional storey on a replacement dwelling, a backland home visible from a public space, or a scheme within or near a protected view or a conservation area can all raise a visual question serious enough to warrant formal assessment.

The clearest cases are proposals that sit within, or affect, one of the borough's protected views. If a scheme could be seen within the statutory view from Richmond Hill, or within the protected vista from King Henry's Mound in Richmond Park towards St Paul's, or within one of the local river and park views the borough protects, then a visual assessment is not optional in practice — the council will expect to see, on accurate images, whether the proposal intrudes into the view, and the applicant who does not provide that evidence leaves the officer to assume the worst. In these locations a TVIA, or at least a focused verified-view study, is the difference between a decision made on evidence and a decision made on caution.

Beyond the protected views, a TVIA or a proportionate townscape and visual appraisal is commonly appropriate where a proposal would be prominent in the public realm — on a corner or a ridge, on a taller building, on a site that closes a view down a street, or where the roofscape of a conservation area would change. It is also relevant where a scheme affects the setting of a listed building or a Building of Townscape Merit, because the visual relationship between old and new is part of what the setting is. On the smallest and most contained schemes a full TVIA may be disproportionate, and a shorter townscape and visual appraisal, or a set of verified views within the Design and Access Statement, will do the job — the important thing is to match the depth of the assessment to the sensitivity of the case.

The most reliable way to establish whether your scheme needs a TVIA, and at what depth, is to look at it the way the council will: identify the designations that apply to the site and its surroundings, identify the viewpoints from which the scheme could be seen, and ask honestly whether any of those views or the townscape character could be materially affected. We carry out that appraisal at the outset of every instruction on a sensitive Richmond site, so that the assessment is scoped correctly — neither missing a view the council will raise, nor over-engineering a study the scheme does not need. Where views are clearly in play, we also recommend using the council's pre-application service to agree the viewpoints and the level of visual representation before the work is done.

Richmond upon Thames is unlike any other London borough, and the reason is bound up with views. Straddling the river in the south-west of the capital, it is the only borough with land on both banks of the Thames, and it holds an extraordinary share of London's green space — nearly two-fifths of its area is protected open space, including Richmond Park (the largest of London's Royal Parks, created by Charles I as a deer park and now a National Nature Reserve, a Site of Special Scientific Interest and a Special Area of Conservation), Bushy Park, the Royal Botanic Gardens at Kew (a UNESCO World Heritage Site), Old Deer Park, Ham Common, Barnes Common and Marble Hill. That green setting is not a backdrop to development in Richmond; it is the very thing the planning system protects, and the views of it and across it are the reason a TVIA carries such weight here.

The area's history is deep and royal, and it is a history of admired views. The names of its villages appear in the Domesday Book of 1086 — Petersham as Patricesham, Mortlake as Mortelage — and Kew is recorded from 1327. In the early sixteenth century Henry VII rebuilt the royal manor house here and renamed the district Richmond after his earldom in Yorkshire, giving the place its name and its royal association. Ham House, one of the most remarkable Stuart houses in the country, was built in 1610; Marble Hill was a Palladian villa built for a mistress of George II; and the riverside at Richmond, Petersham and Ham became one of the most painted landscapes in England, celebrated by Turner and Reynolds and by the poets Thomson, Wordsworth and Scott. The view was famous long before the planning system existed, and the borough's identity is inseparable from it.

Above all, Richmond holds a distinction shared by nowhere else in Britain: the view from Richmond Hill over the Thames towards Petersham and Ham is the only view in the country protected by its own Act of Parliament. The Richmond, Ham and Petersham Open Spaces Act 1902 was passed specifically to preserve the land on and below Richmond Hill and thus to keep the sweep of the river and its meadows as seen from the terrace. That single fact tells you almost everything about the borough's attitude to development. The protection of views, landscape and townscape is not a modern planning fashion here; it is a value written into law more than a century ago and reinforced by every plan since. A Townscape and Visual Impact Assessment is the document through which a modern proposal answers that century-old expectation.

For a residential scheme, this context is directly relevant, because the borough's landmarks and its views are the framework against which a design is judged. A property on or below Richmond Hill sits within the setting of a statutory view. A site anywhere within the ten-mile corridor from King Henry's Mound to St Paul's may fall within the London View Management Framework's protected vista. A house on the riverside, near a park edge, or on a ridge may sit within one of the borough's locally valued views. And almost anywhere in the historic cores — Richmond, Petersham, Ham, Kew, Barnes, East Sheen, Twickenham, Teddington and Mortlake — a scheme will affect the roofscape and character of a conservation area. The TVIA is how a proposal shows, on evidence, that it understands and respects all of this.

The view from Richmond Hill is the centrepiece of the borough's approach to visual protection, and it is worth understanding precisely why. The Richmond, Ham and Petersham Open Spaces Act 1902 was a private Act of Parliament, promoted after years of campaigning, that secured in perpetuity the land on and below the Hill — the terrace gardens, the meadows of Petersham and Ham, the river bend — so that the celebrated prospect could never be built over. It is the only view in the United Kingdom protected by its own Act of Parliament, and that statutory status gives it a weight that ordinary planning designations do not have. Development that would harm the view, whether by intruding into it directly or by disrupting its foreground and setting, faces the very highest level of protection.

For a TVIA, the practical consequence is that any proposal within or near the Richmond Hill view has to be tested against it explicitly and rigorously. That means identifying whether the scheme would be visible from the terrace and the Hill at all, and if so, showing on accurate visual representations exactly how it would appear — whether it would break the treeline, interrupt the sweep of the meadows, add a roof or a mass into the composed foreground, or otherwise change the picture that the Act exists to preserve. Where a scheme is visible, the assessment has to be honest about the effect; where it is genuinely not visible, the TVIA is the document that demonstrates that fact and removes the concern.

The Richmond Hill view is not the only view the borough guards, but it sets the tone for all the others. The council's landscape and townscape policies protect a wider family of local views — along the river, around the parks and commons, and towards and from the historic cores — and the same discipline applies to each: identify the view, identify whether the scheme sits within it, and show accurately what the effect would be. The 1902 Act is a reminder that in this borough a view is not an abstraction to be argued away in words; it is a real, valued, sometimes legally protected asset, and the TVIA is the instrument that treats it as such.

Where a property lies on or below the Hill, the view is often the single constraint that most shapes what can be built — the height, the roofline, the visibility of an addition. We establish at the very start of a project on such a site whether the proposal sits within the protected view, because that answer drives the design. It is far better to design a scheme that is comfortable in the view from the outset than to design freely and then discover, at the application stage, that the roofline the whole design depends on cannot be accepted. The TVIA is where that analysis is set down formally; the design decisions it informs happen long before.

Beyond the statutory Richmond Hill view, Richmond upon Thames is home to one of London's most remarkable long-distance views: the protected vista from King Henry's Mound, in the grounds of Pembroke Lodge within Richmond Park, to St Paul's Cathedral, roughly ten miles distant. It is one of the designated views in the Mayor of London's London View Management Framework (LVMF), the supplementary planning guidance first published in support of the London Plan and most recently consolidated in 2012, which manages the impact of development on London's most important panoramas, river prospects and townscape views. The Mound-to-St Paul's vista is a 'protected vista' directed at a Strategically Important Landmark, meaning the cathedral's dome is protected against being obscured or crowded by development along the corridor between the two points — a protection that reaches across many boroughs, but which originates here in Richmond.

The LVMF works through defined viewing locations, viewing corridors and landmark viewing corridors, together with wider setting consultation areas and, in some cases, protected silhouettes and backgrounds. For a scheme anywhere within the relevant corridor or its consultation area, the framework requires that the effect on the designated view be assessed and, where necessary, illustrated with accurate visual representations to the levels the framework sets out. A TVIA in Richmond therefore frequently has to engage not only with the borough's own views but with the LVMF's London-wide geometry, and the assessor has to know which designations bite on a particular site — a question that is not always obvious from the map and which is worth resolving early.

Alongside the statutory view and the LVMF vista, the borough protects a wider set of locally valued views: prospects along and across the Thames, views into and out of the great parks and commons, views of landmark buildings and church spires, and views that define the character of the conservation areas. These local views do not have the statutory force of the 1902 Act, but they carry real policy weight, and the council will expect a proposal that could affect one to demonstrate — on evidence, not assertion — what the effect would be. A well-scoped TVIA identifies all of the views, statutory, London-wide and local, that a site engages, and assesses each at the appropriate level of detail.

The reason this matters so much in practice is that the geometry of a protected view is unforgiving. A view corridor is a defined three-dimensional volume, and a proposal either intrudes into it or it does not; a landmark's protected silhouette is either kept clear or it is not. These are not questions that can be resolved by persuasive prose, and they are exactly the questions on which schemes near Richmond's views turn. The verified views and accurate visual representations within a TVIA are the only way to answer them properly — which is why the next section deals with what those images are and how they are made.

A TVIA follows the GLVIA3 method, and understanding its logic helps you read the finished document and see why it is persuasive. The method begins with a baseline: a careful description of the existing townscape and the existing views, before the proposal. For townscape this means characterising the area — its scale, grain, building lines, roofscape, materials, spaces and the qualities that give it its identity — and identifying the townscape 'receptors' that could be affected. For visual effects it means identifying the viewpoints from which the scheme could be seen and the 'visual receptors' who use them: residents, walkers, park visitors, drivers, users of the river. The baseline is the foundation of everything that follows, and in Richmond it has to be done with real care because the character is so distinctive.

The assessment then judges two things for each receptor: sensitivity and magnitude. Sensitivity combines the value of the receptor (a statutory view, a conservation area and a designated townscape are highly valued; an ordinary street less so) with its susceptibility to the particular kind of change proposed. Magnitude describes the change itself — its size or scale, its geographic extent, its duration and reversibility. Combining sensitivity and magnitude, using reasoned professional judgement rather than a mechanical formula, gives the significance of the effect for each receptor, typically expressed on a scale from negligible through minor and moderate to major, and always stated as either adverse or beneficial. GLVIA3 is explicit that this is a matter of transparent professional judgement, documented so the reader can follow it, not a spurious arithmetic.

Crucially, the method requires effects to be assessed at the right moments — usually on completion, and often at a future point once any planting has matured — and requires the assessor to consider mitigation. Mitigation in townscape and visual terms means changes to the proposal that reduce harm: lowering a ridge, setting back an upper storey, changing a material or a colour, adjusting a roof form, retaining or adding planting. The best TVIAs show mitigation woven into the design rather than bolted on, which is only possible when the assessment is done early. The residual effect — the effect after mitigation — is what the council ultimately weighs, and a good assessment is candid about it: overstating benefit or understating harm destroys the document's credibility.

Because GLVIA3 turns on professional judgement, the standing of the assessor matters. The Landscape Institute is clear that landscape and visual assessments should be carried out by suitably qualified and experienced landscape professionals, and a case officer or an inspector gives more weight to an assessment prepared and signed by someone competent to make these judgements. Equally, the visual evidence within the assessment — the verified views — has its own accuracy standard, set out in the Landscape Institute's Technical Guidance Note on visual representation. The combination of a competent, GLVIA3-compliant assessment and accurate, standards-compliant images is what makes a TVIA robust enough to carry a decision in a borough as demanding as Richmond.

The images at the heart of a TVIA are not artist's impressions; they are accurate visual representations, and the term matters. An accurate visual representation (AVR) — also called a verified view or a verified visual image — is a scaled visualisation that shows the location of a proposed development, the degree to which it will be visible, and, at higher levels, its detailed form and the materials to be used, all placed accurately within a real photograph of the existing scene. The essential quality of a verified view is that it is independently reproducible: it combines baseline photography taken to a documented method, a survey-based three-dimensional model of the proposal set in a digital terrain model, and precise rendering, so that anyone checking the work could stand at the same point and confirm the image is true. That reproducibility is what makes a verified view defensible when a scheme is contested.

The London View Management Framework defines four levels of accurate visual representation, and knowing which level your scheme needs is important because the levels do very different jobs. AVR Level 0 shows the location and size of the proposal — effectively a wireline or outline of the proposal overlaid on the photograph, useful early on to test whether a scheme even appears in a view. AVR Level 1 shows the location, size and degree of visibility — the massing of the proposal within the real three-dimensional context, so you can see what can and cannot be seen. AVR Level 2 adds a description of architectural form, illustrating doors, windows, floors and the shading of the building. AVR Level 3 adds the use of materials: a fully rendered, photo-realistic photomontage with texture, shading and reflections. The scale is cumulative — each level includes everything below it — and the appropriate level depends on the sensitivity of the view and the stage of the process.

The accuracy of these images is governed by the Landscape Institute's Technical Guidance Note 06/19, 'Visual Representation of Development Proposals', published in 2019, which amplifies the broad principles of GLVIA3. TGN 06/19 sets out how the photography, the camera positions, the field of view, the 3D modelling and the horizon alignment must be documented so that the resulting image is genuinely accurate rather than flattering. A verified view prepared to this standard records the camera location by survey, the focal length, the date and time, and the method used to register the model to the photograph, and it presents the image at a size and viewing distance that reproduce the real field of view. In Richmond, where a view can be the decisive issue, the difference between a verified view prepared to TGN 06/19 and a casual photomontage is the difference between evidence and decoration.

Choosing the right viewpoints is as important as the accuracy of the images themselves. A verified view is only as useful as the position it is taken from, and the credibility of a TVIA depends on selecting viewpoints that genuinely represent the significant effects — the places the council and the community actually value, including the protected views where they apply — rather than only the flattering angles. On sensitive Richmond schemes it is good practice to agree the viewpoints and the AVR level with the council in pre-application discussion, so that the assessment answers the questions the officer will ask. We manage that process: we identify the viewpoints, agree them where appropriate, commission the survey-based photography and modelling to TGN 06/19, and produce the verified views at the level the scheme requires.

A proposal that affects townscape or views in Richmond is judged first against the borough's Local Plan, and the crucial fact is that Richmond adopted a brand-new Local Plan on 7 October 2025. This replaced the previous plan of July 2018 and is now the primary policy document against which applications are assessed. Because the plan is new, its policies carry full weight, and anyone advising you on a visually sensitive scheme needs to be working to the 2025 plan and its policies map rather than the superseded 2018 one. A TVIA prepared for a Richmond scheme should engage explicitly with the current plan's design, heritage, landscape and views policies for the specific place in which the site sits.

The 2025 Local Plan takes a distinctive 'place-based' approach. Rather than treating the borough as a single undifferentiated area, it sets out a strategy for each 'place' — each village and neighbourhood — recognising that Richmond, Barnes, Kew, Ham, Petersham, Twickenham, Teddington and the rest each have their own character, constraints and capacity for change. For a TVIA this is directly useful: the plan itself describes the townscape character the assessment then has to test against, place by place, so that the question is not just 'does this harm the borough' but 'does this respect the specific character and views of this place'. That alignment between the plan's own characterisation and the TVIA's baseline is one of the things that makes a well-prepared assessment persuasive to a Richmond case officer.

Running through the plan are the themes that decide most visually sensitive schemes: high-quality, character-led design; the protection of the borough's exceptional heritage, landscape and views; strong requirements on residential amenity; and the sensitive intensification of existing residential areas and small sites. The plan carries forward the borough's long-standing protection of important local views and its expectation that development respects the roofscape, scale and building lines of its surroundings, and it sits alongside the council's suite of supplementary guidance — the conservation area appraisals, the Buildings of Townscape Merit SPD (adopted 2015), and the residential design guidance — which set out in detail what 'respecting character' means in practice. A TVIA has to be read against all of this.

The practical effect is that a visual case in Richmond has to be argued policy by policy and place by place. The proposal has to be shown to preserve or enhance the character of its conservation area; to avoid harm to the setting of listed buildings and Buildings of Townscape Merit; to protect the statutory, London-wide and local views that the site engages; and to sit comfortably within the townscape of its specific place under the 2025 plan. We frame every TVIA around the current plan's policies and the relevant supplementary guidance for the exact place the site sits in, so the case officer can see, point by point and view by view, that the scheme complies. Working to the current plan, for the right place, is the foundation of a consentable visual case.

Above the borough's Local Plan sits the Mayor of London's London Plan, adopted in March 2021, which forms part of the development plan for Richmond and carries real weight in any visually sensitive case. Two threads of the London Plan matter most for a TVIA. The first is the plan's design policies, in particular Policy D9 on tall buildings, which requires boroughs to define where tall buildings are and are not appropriate and requires proposals to be assessed for their visual, functional, environmental and cumulative impacts — including their effect on views, on the skyline and on the character of the surrounding townscape. Although true tall buildings are rare in Richmond, the D9 logic — that height has to be justified against its visual and townscape effects — runs through the borough's approach to any proposal that would rise above its context.

The second thread is the London Plan's heritage and views policies, notably the policies that protect London's designated views and the historic environment (carried in the current plan under the heritage chapter, with the detailed geometry set out in the London View Management Framework). These are the policies under which the protected vista from King Henry's Mound to St Paul's is managed, and under which any scheme within an LVMF viewing corridor or consultation area has to demonstrate that it does not harm the designated view. For a Richmond site caught by the LVMF, the TVIA has to engage with the framework's requirements directly, using accurate visual representations at the appropriate AVR level to show the effect on the view.

The London Plan also brings in the broader expectation, echoed in the borough's plan, that development should optimise the use of land through a design-led approach that responds to context and character — the small-sites and 'good growth' policies that encourage intensification while insisting it be done well. For a residential scheme this means that squeezing extra height or bulk onto a site is not, in itself, a planning virtue; the plan expects the additional development to be justified by its quality and its fit with its surroundings, which is precisely what a TVIA tests. The visual assessment is the evidence that a design-led intensification genuinely respects its context rather than simply maximising floor area.

In practice, a Richmond TVIA has to hold two levels of policy together: the strategic London Plan, with its D9 discipline on height and its protection of the designated views, and the borough's own 2025 Local Plan and supplementary guidance, with their place-based character policies and their protection of local views. A good assessment does not treat these as separate boxes to tick; it weaves them into a single, coherent visual case that shows the scheme respects the townscape and the views at every level — strategic, borough and local. We prepare TVIAs that speak to both, because a case officer in Richmond has to be satisfied at both levels before a visually sensitive scheme can be recommended for approval.

A well-structured TVIA follows the logic of the GLVIA3 method, and its contents are broadly predictable. It opens with an introduction and a clear statement of the methodology, so the reader knows the assessment is prepared to GLVIA3 and that the images are prepared to TGN 06/19. It sets out the study area and the scope — which townscape and which views are being assessed, and why. It then establishes the baseline: a characterisation of the townscape, an identification of the relevant designations (conservation areas, listed buildings, Buildings of Townscape Merit, the statutory and LVMF views, local views), and a selection of representative viewpoints from which the visual assessment is made. In Richmond that baseline section is often the most valuable part of the document, because it demonstrates that the assessor genuinely understands the place.

The core of the document is the assessment itself. It describes the proposal in townscape and visual terms, then assesses the townscape effects (on the character and fabric of the area) and the visual effects (on each viewpoint and receptor) using the sensitivity-and-magnitude approach, arriving at a stated significance for each — negligible, minor, moderate or major, adverse or beneficial. It supports the visual assessment with the accurate visual representations: existing photographs, wirelines or renders at the appropriate AVR level, with the camera data and methodology recorded so the images can be verified. It addresses mitigation — the design measures that reduce harm — and states the residual effects that remain. It concludes with a clear, honest overall judgement of the scheme's townscape and visual effects.

Because Crown is an architecture practice as well as a preparer of assessments, we do not treat the TVIA as a document produced in isolation at the end of the design. We use the visual analysis from the very first sketches: we identify the viewpoints and the protected views that the site engages, we test massing options against them, and we let the results shape the height, the roofline, the setbacks and the materials of the design. By the time the formal TVIA is written, the scheme has already been designed to sit comfortably in its views — so the assessment records a genuinely good outcome rather than trying to defend a problem. That integration of design and assessment is the single biggest advantage of having the same team do both.

Practically, preparing a TVIA on a Richmond scheme runs through a clear sequence. We appraise the site's designations and views; we scope the assessment and, where views are decisive, agree the viewpoints and AVR level with the council at pre-application; we commission survey-based photography and 3D modelling to TGN 06/19 and produce the verified views at the required level; we carry out and write up the GLVIA3 assessment; and we integrate the document with the Design and Access Statement, the Heritage Statement where one is needed, and the drawings, so the application tells one coherent story. The result is an assessment that answers the visual question the borough will ask, on evidence, and that supports rather than contradicts the rest of the submission.

In Richmond the townscape and visual question and the heritage question are usually the same question seen from two angles, because so much of what a view protects is a heritage asset — a conservation area, a listed building, a historic riverside, a valued roofscape. The council has a statutory duty, under the Planning (Listed Buildings and Conservation Areas) Act 1990, to pay special attention to preserving or enhancing the character or appearance of a conservation area and to have special regard to the setting of listed buildings. The 'setting' of a heritage asset is, in large part, a visual concept: it is the surroundings in which the asset is experienced, including the views to and from it. A TVIA and a Heritage Statement therefore overlap heavily, and on many Richmond schemes they are best prepared together.

The borough has more than seventy conservation areas, each with its own appraisal describing the character the council seeks to protect, and a large stock of locally listed Buildings of Townscape Merit governed by the borough's 2015 SPD. For a scheme in or near any of these, the TVIA has to engage with the specific character the appraisal identifies — the prevailing scale, the building line, the roof forms, the materials, the boundary treatments — and show how the proposal responds to it in views. This is where a generic assessment fails and a genuinely local one succeeds: the character of a conservation area in Barnes is not the character of one in Petersham or Kew, and an assessment that does not grasp the difference will not persuade a Richmond officer.

The National Planning Policy Framework provides the overarching test, requiring that any harm to the significance of a designated heritage asset be given great weight and, where less than substantial, be weighed against the public benefits of the proposal. Because harm to a heritage asset is so often experienced visually — through an intrusion into a view, a change to a roofscape, an effect on a setting — the verified views within a TVIA are frequently the very evidence on which the heritage judgement turns. An accurate image that shows a proposal sitting quietly in the setting of a listed building, or preserving the character of a conservation area, can be worth more than pages of argument; an image that shows harm has to be met with candour and, ideally, with design changes.

We prepare the townscape, visual and heritage evidence as a coordinated whole. The baseline characterisation serves both the TVIA and the Heritage Statement; the verified views illustrate both the visual effect and the effect on setting; and the assessment and the heritage appraisal reach consistent conclusions rather than contradicting each other, as they can when they are prepared by separate hands. On a Richmond scheme where heritage and views are both in play — which is most of the sensitive ones — that coordination is not a luxury; it is what allows the application to make a single, coherent case that the officer can accept.

A TVIA is one document in a suite, and it works best when it is consistent with the others rather than sitting apart from them. The Design and Access Statement explains and justifies the design; the TVIA independently assesses its townscape and visual effects; and the two should tell the same story, with the DAS drawing on the visual analysis and the TVIA reflecting the design rationale. The Heritage Statement, where one is required, addresses significance and setting, overlapping with the TVIA on the visual dimension of setting. The drawings — existing and proposed plans, elevations, sections and, importantly, accurate visualisations — are the factual basis the TVIA assesses. When all of these are prepared together they reinforce each other; when they are prepared separately they can quietly contradict, and a contradiction between documents is exactly what a careful officer will seize on.

The verified views deserve particular attention here, because they belong to more than one document. They are the evidence within the TVIA, but they are also often the most persuasive images in the whole submission, and they frequently appear in the DAS and the heritage material too. Preparing them once, to a single accurate standard, and using them consistently across the application avoids the confusion of different images showing subtly different things — a common problem when visualisations are commissioned piecemeal. On a Richmond scheme where the images will be scrutinised, having one accurate set that the whole application relies on is both more efficient and more credible.

Depending on the scheme, the TVIA also has to be coordinated with the technical reports that can affect the design and therefore the views: an arboricultural assessment where trees frame or screen a view (a real issue in such a heavily treed borough), a daylight and sunlight assessment where massing changes affect both amenity and appearance, a flood risk assessment near the river where finished floor levels can change the visible height of a building, and the drainage and energy strategies where plant or renewables might be visible on a roof. A change forced by one of these reports can alter what the verified views show, so they have to be developed together rather than in sequence.

The point of all this coordination is simple: the council should receive one coherent application in which every document points the same way. On a straightforward scheme that is easy; on a visually sensitive Richmond scheme, where the visual question is the decisive one, it is essential. We prepare and coordinate the TVIA alongside the design, the heritage evidence and the supporting reports, so that the application the officer opens is internally consistent and makes a single, evidenced case that the proposal respects the borough's townscape and views.

The most common and most damaging mistake is leaving the visual assessment to the end. When a design is fixed before the views are analysed, the TVIA becomes a defence of decisions already made, and if those decisions turn out to intrude into a view or break a skyline, there is no room left to fix them without redesigning. In a borough where the visual question so often decides the application, this is the difference between a scheme that sails through and one that has to be withdrawn and started again. The visual analysis has to come first, as a design input, not last, as a justification.

A second frequent failure is inaccurate or unverified imagery. A photomontage that is not prepared to a documented method — that does not record the camera position, the focal length and the registration of the model to the photograph — is not evidence; it is decoration, and a Richmond officer will treat it as such, or worse, suspect it of flattering the scheme. Verified views prepared to TGN 06/19 are the only images that carry weight where a view is contested, and skimping on their accuracy to save cost is a false economy when the whole decision may turn on them.

A third mistake is choosing the wrong viewpoints — assessing the scheme only from angles where it looks good, and omitting the views the council and the community actually value, including the protected views. A TVIA that avoids the obvious viewpoint is immediately suspect, and it invites the officer to assume that the omitted view is the one that shows harm. The credible approach is to assess the scheme honestly from the significant viewpoints, agreeing them with the council where the case is sensitive, and to be candid where an effect exists. Candour, backed by mitigation, is far more persuasive than an assessment that reads as advocacy.

Other recurring problems include overstating benefit and understating harm, which destroys the assessor's credibility; ignoring the cumulative effect of the proposal alongside other consented schemes; using an assessor without recognised landscape competence, which reduces the weight the assessment carries; failing to engage with the specific character described in the relevant conservation area appraisal; and treating the TVIA in isolation so that it contradicts the DAS or the heritage evidence. Each of these is avoidable. The remedy in every case is the same: prepare the assessment early, to the recognised methods, by competent hands, honestly, and integrated with the rest of the application. That is how a visual case succeeds in Richmond.

A TVIA rarely travels alone on a Richmond scheme, and knowing which companions it needs helps you scope the whole application correctly. The closest relative is the Heritage Statement (or heritage impact assessment), required wherever a proposal affects a listed building, a conservation area or their settings — which, given the borough's coverage, is most sensitive sites. Because setting is a visual concept, the Heritage Statement and the TVIA share a baseline and share the verified views, and preparing them together avoids the contradictions that arise when they are separate.

The Design and Access Statement is required for many applications and is the document in which the design is explained and justified; it draws directly on the visual analysis and should be consistent with the TVIA. An arboricultural assessment and tree survey is frequently needed because trees are so often the thing that frames or screens a Richmond view, and a change to the trees can change the whole visual case. A daylight and sunlight assessment may be required where massing affects neighbours and, incidentally, appearance. Near the river, a flood risk assessment can change finished floor levels and therefore the visible height of a building, feeding back into the verified views.

On larger or more complex schemes the visual assessment may sit within a formal Environmental Statement under the Environmental Impact Assessment Regulations, as one of its chapters, prepared to the same GLVIA3 method but as part of a wider environmental appraisal. Most residential schemes in Richmond fall below the EIA thresholds and need a standalone TVIA or a proportionate townscape and visual appraisal rather than a full Environmental Statement, but it is worth establishing early whether EIA is engaged, because it changes the scope and the timetable considerably.

Finally, the verified views and accurate visual representations are themselves a deliverable that supports several documents at once, and the CGI and survey work behind them is a distinct piece of the project to plan and budget for. We scope the whole suite at the outset — the TVIA, the heritage and design documents, the tree, daylight, flood and drainage work, and the visualisation package — so that nothing is missed at validation and nothing is commissioned twice. Matching the documents to the scheme, no more and no less, keeps the application both complete and proportionate.

The cost of a TVIA depends chiefly on two things: the number and complexity of the viewpoints, and the level of the accurate visual representations required. A proportionate townscape and visual appraisal for a small, contained scheme — a modest assessment with a handful of viewpoints and lower-level AVRs — is a relatively modest cost. A full TVIA for a scheme within a protected view, requiring survey-based photography, detailed 3D modelling and higher-level (AVR 2 or 3) verified views from several agreed viewpoints, is a more substantial commission, because the survey, modelling and rendering work behind accurate images is genuinely specialist. The right way to think about the cost is in proportion to the scheme and its visual sensitivity.

The largest variable is usually the verified-view package. A wireline or AVR Level 0/1 study to test massing is far less costly than a set of fully rendered, photo-realistic AVR Level 3 photomontages prepared to TGN 06/19 from multiple survey-registered viewpoints. This is why scoping the assessment correctly matters so much financially: agreeing with the council which viewpoints and which AVR level are genuinely required avoids both under-providing (and having the application held up) and over-providing (and paying for photo-realistic renders where a wireline would have answered the question). We scope this deliberately, and where views are decisive we agree the requirement at pre-application so the money is spent on what the decision actually needs.

It is worth setting the TVIA cost against what it protects. On a sensitive Richmond scheme the visual question is frequently the one that decides the application; a well-prepared TVIA that gets the scheme consented, or that identifies early the design change that makes it acceptable, is inexpensive against the cost of a refusal, an appeal, or a redesign forced late in the day. The false economy is not spending on the assessment; it is spending on a design that the views will not accept because no one tested it. Prepared early, the TVIA often saves money by steering the design right the first time.

There are also the council's own charges to factor in. Richmond upon Thames operates a pre-application advice service on a fee scale according to the size of the proposal, and on a visually sensitive scheme that fee is often money well spent, because it lets you agree the viewpoints and the AVR level, and get an early steer on the design, before committing to the full assessment. The planning application itself carries the national statutory application fee, which depends on the type and scale of development. We set out all of these costs — our fees for the design and the TVIA, the visualisation package, and the council's pre-application and application fees — clearly at the start, with a fixed quote before any work begins.

The process of getting a visually sensitive scheme through Richmond upon Thames Council runs in a clear sequence, and the TVIA threads through all of it. It begins with a site appraisal: we establish the designations that apply — conservation area, listed-building settings, the statutory Richmond Hill view, any LVMF corridor, local views, trees, flood zone — and identify the viewpoints from which the scheme could be seen. That appraisal tells us, before any design is committed, what the decisive visual constraints are and what depth of assessment the scheme will need. On a Richmond site this early honesty is worth a great deal, because it is far cheaper to design within the constraints than to discover them at the decision stage.

Where views are decisive, the next step is usually pre-application engagement with the council. Richmond operates a pre-application advice service, and on a scheme where the visual question matters it is often worthwhile, because it lets us agree the viewpoints and the AVR level with the officer, and get a written steer on the design and heritage approach, before the full assessment is done. That agreement means the eventual TVIA answers exactly the questions the council will ask, and it signals to the case officer that the proposal has been developed thoughtfully — which helps on a finely balanced visual case.

With the scope settled, we develop the design against the views, commission the survey-based photography and 3D modelling, produce the verified views to TGN 06/19 at the agreed level, and write up the GLVIA3 assessment. We then assemble the full application — the drawings, the Design and Access Statement, the Heritage Statement where needed, the TVIA and its verified views, and the supporting technical reports — as one coherent submission, and lodge it. The council validates the application against its local validation requirements, publicises it for consultation, and a case officer assesses it, drawing on internal advice from the council's design and conservation specialists and, where an LVMF view is engaged, potentially the Greater London Authority.

The council works to a statutory target of eight weeks for a minor application and thirteen weeks for a major scheme, though on a visually sensitive proposal a realistic programme allows time for consultation, for the officer's assessment of the verified views, and for any revisions or negotiation. A well-prepared TVIA smooths this stage, because it answers the visual question on evidence rather than leaving the officer to raise it and wait for a response. We manage the application through to decision, respond to consultation and officer queries, and — because we designed the scheme to sit comfortably in its views from the outset — the assessment supports the recommendation rather than becoming the sticking point.

Every planning application in Richmond is checked against a validation checklist before it is registered, and if a required document is missing or inadequate the application is not validated — it simply sits, unregistered, until the gap is filled. Councils publish a local list of the documents they require alongside the national requirements, and for a visually sensitive scheme the local list, together with the officer's judgement, is where the expectation for a townscape and visual assessment or verified views is set. Getting the visual evidence right at submission is therefore not only about persuasion; it is about the application being accepted at all without weeks of delay while missing images are prepared.

The difficulty is that whether a TVIA is required, and at what depth, is a matter of judgement rather than a fixed rule, and that judgement is best made with the council rather than guessed at. This is where scoping and pre-application engagement earn their keep. By agreeing with the officer at the outset which viewpoints matter, whether the statutory or LVMF views are engaged, and what level of accurate visual representation is expected, we make sure the assessment submitted is the assessment the council wants to see — neither so thin that it is rejected as inadequate, nor so elaborate that money is spent on photo-realistic renders the decision never needed.

Scoping also protects the programme. On a scheme where views are decisive, the survey-based photography and 3D modelling behind verified views take time to commission and produce, and they cannot be rushed at the last minute without losing accuracy. Establishing early that they are needed, and at what level, means they are prepared in parallel with the design rather than becoming a bottleneck at submission. It is one of the reasons we appraise views and designations at the very first stage of an instruction, before the design is developed, rather than discovering a requirement when the application is ready to lodge.

The pay-off for getting the scoping right is an application that is validated promptly, assessed on evidence, and free of the back-and-forth that dogs schemes where the visual question was left unaddressed. We manage the validation and scoping deliberately: we read the site against the designations and the local list, agree the visual requirement with the council where the case warrants it, and assemble a submission that is complete and proportionate on the day it is lodged. In a borough where the visual issue is so often the decisive one, that discipline is what keeps a good scheme moving.

Most of the schemes on which a TVIA matters in Richmond are ordinary residential projects, not towers, and it helps to see how the assessment applies to each. On a replacement dwelling — where an existing house is demolished and a new one built — the visual question is usually whether the replacement's height, roofline and bulk sit comfortably in the street and in any view the site engages. A verified view from the key public vantage points, prepared while the massing is still fluid, lets the design settle on a ridge and a roof form that the townscape accepts, rather than a design fixed on paper that the views then reject.

On a rooftop addition or an additional storey — a common way to gain space in the borough's Victorian and Edwardian terraces — the assessment focuses on the roofscape, because a new mansard or storey changes the very thing a conservation area appraisal often prizes: the consistent line and rhythm of the roofs. A wireline or lower-level AVR from the street and from any longer view quickly shows whether the addition reads as a discreet, subordinate change or as an intrusion, and it guides the setback, the pitch and the materials that make the difference.

On a backland or garden home the visual issue is prominence in the public realm and effect on the character of the block — whether the new dwelling can be seen from the street or a public space, and whether it erodes the pattern of gardens and gaps that gives the area its grain. On a riverside or park-edge site, the assessment turns on the prospect across or into the open space, and finished floor levels (which near the river may be raised for flood risk) can change the visible height in a way the verified views have to capture. Each project type raises a different visual question, and the assessment is scoped to answer the one that actually decides it.

In every case the principle is the same: the visual analysis is most useful as a design tool used early, not as a justification produced late. Because we design the scheme and prepare the assessment together, we test each of these project types against the views from the first sketches — the replacement's ridge, the addition's roof line, the backland home's visibility, the riverside house's floor levels — and let the results shape the design. That is how a TVIA turns from a document that defends a scheme into one that records a scheme already designed to belong in its Richmond setting.

The single biggest reason to have Crown prepare your TVIA is that we are architects, not only assessors. A TVIA prepared by someone who does not design the building tends to arrive at the end, as a verdict on decisions already made. When the same practice designs the scheme and assesses its visual effects, the analysis shapes the design from the first sketch: the viewpoints and protected views are tested before the height and roofline are fixed, and the assessment records a genuinely good outcome rather than defending a problem. On a Richmond scheme, where the visual question so often decides the application, that integration is decisive.

We know this borough's views. The statutory Richmond Hill view and its 1902 Act, the ten-mile LVMF vista from King Henry's Mound to St Paul's, the river and park prospects, the roofscapes of more than seventy conservation areas — these are the constraints we design within every week, not exotic special cases. We know which designations bite on which sites, which viewpoints a case officer will expect to see, and how the 2025 Local Plan and the London Plan treat views, heritage and design. That local knowledge is what turns a generic assessment into one that answers the questions Richmond actually asks.

We prepare the assessment to the recognised standards and integrate it with the rest of the application. The TVIA follows the GLVIA3 method; the verified views are prepared to the Landscape Institute's TGN 06/19; and the whole thing is coordinated with the design, the heritage evidence, the drawings and the supporting reports, so the application tells one coherent, evidenced story. And because we also carry a scheme through to building regulations and, where we are engaged for it, to construction, the design that the TVIA assesses is a design that is genuinely buildable — not a visualisation that changes on site.

Above all, we are honest. A TVIA is only worth commissioning if it is credible, and credibility in front of a Richmond officer comes from candour: assessing the significant viewpoints, being straight about effects, and offering mitigation where there is harm. We would rather tell you early that a roofline will not work in a protected view — and design a scheme that does — than produce an assessment that flatters a proposal the borough will refuse. That honesty, backed by design skill and local knowledge, is what gets visually sensitive schemes consented here. Send us your site and we will tell you, plainly, what the views will accept and how to build within them.