New Home Planning: Expert South West London Guide 2026

Homeowners often arrive at new home planning with a clear feeling rather than a clear brief. They know the current house no longer works. They want better light, calmer circulation, more privacy, stronger connection to the garden, and spaces that support the way they live. In South West London, that ambition is entirely achievable, but it needs to be translated into a design and planning strategy that fits the realities of the site, the borough, and the surrounding streetscape.

That matters more here than it does in many other parts of the country. A plot in Wimbledon, Richmond or Wandsworth may look straightforward at first glance, yet the actual project is often shaped by conservation constraints, neighbouring amenity, mature trees, tight access, party walls, and increasingly demanding sustainability standards. The best bespoke homes are not the ones that push blindly against those conditions. They are the ones that use them intelligently.

From Dream to Drawing Board Starting Your Journey

A typical starting point is simple. A family has found a site, or they own a house on a plot with redevelopment potential, and they can already picture the life they want there. They might want a kitchen that opens properly to the garden, a quieter principal suite, a basement cinema, a gym, or a study that doesn't feel like an afterthought. In Wimbledon and the wider South West London area, those aspirations are rarely the problem. The problem is turning them into a scheme that can be built without expensive detours.

The first conversations usually move quickly from mood boards to practical questions. Can the plot take a deeper footprint without overshadowing a neighbour? Will the borough support a contemporary form, or is a more contextual response needed? Can a basement be excavated safely? Is there enough width for decent circulation, proper storage and plant space, rather than a house that looks generous on paper but feels pinched in daily use?

Practical rule: Early enthusiasm is useful. Early assumptions are dangerous.

That is why structured preparation matters. BRE's Domestic New Build Defects report found that 42% of high-end residential projects in London and the South East experience delays exceeding three months due to incomplete planning, with overlooked Party Wall Act issues affecting 28% of Wimbledon-area builds according to BRE Group reporting. In practice, that means the projects that feel slow and frustrating often didn't start slowly enough. They rushed past the questions that should have been resolved first.

What a good start looks like

A sound beginning is rarely dramatic. It is methodical. Before sketch design really gathers momentum, clients need to define three things:

• What the house must do every day. Not just room count, but morning routines, entertaining patterns, work habits and long-term family needs.

• What the site can support. This includes planning context, access, orientation and likely technical constraints.

• What level of finish is expected. Luxury is not one thing. It may mean handcrafted joinery, advanced environmental control, natural stone, integrated site works, or all of them together.

For many clients, it helps to review examples of how a home is shaped from first ideas into a viable proposal. Harper Latter Architects has a useful article on how to design your own home, which is worth reading before appointing a team or fixing assumptions too early.

The South West London difference

New home planning here tends to be less about open-ended freedom and more about intelligent negotiation. A generous detached plot in one street can sit only a few minutes from a conservation area where roof form, frontage rhythm, material palette and boundary treatment become much more sensitive. That isn't a reason to scale back ambition. It is a reason to shape ambition with precision.

The clients who enjoy the process most are usually those who accept one fact early. Bespoke design is not about getting everything you want in abstract terms. It is about prioritising the things that will make the house exceptional, then resolving the inevitable trade-offs properly.

Site Appraisal and Planning Permission in South West London

A family finds a plot in Wimbledon that looks generous on paper. By the first planning review, actual constraints emerge: a mature tree near the boundary, a neighbouring window with a direct line of sight, a conservation area nearby, and a frontage rhythm the council will expect any new house to respect. That is typical in South West London. The opportunity exists, but it only becomes clear once the site is tested properly.

What a professional site appraisal includes

A proper site appraisal establishes what the plot can support before the design gathers momentum. On smaller South West London sites, that matters because one decision about footprint or height often affects privacy, daylight, trees, drainage, and buildability at the same time.

A useful appraisal should examine:

1. Orientation and daylight. Garden aspect matters, but so do neighbouring buildings, boundary treatments, and existing trees. A west-facing rear garden can still work very well if internal planning and glazing are handled properly.

2. Levels and ground conditions. Small level changes can alter entrance arrangements, retaining walls, drainage runs, and whether a lower-ground floor is realistic or unnecessarily expensive.

3. Street character and townscape. Building lines, roof forms, frontage widths, boundary walls, and the spacing between houses often shape the planning response more than clients expect.

4. Physical constraints on the plot. Access width, service routes, easements, protected trees, and overlooking from adjacent properties all influence what can be approved and built.

5. Policy and designation context. Borough policy, the London Plan, conservation area guidance, and sustainability requirements need to be read together.

That last point often decides the direction of a scheme. In Richmond, Merton, Wandsworth and Kingston, the planning position is rarely defined by one policy in isolation. A house may be acceptable in principle, but the council may still object to its roof profile, hard landscaping, basement strategy, carbon performance, or effect on the street scene.

Pre-application advice versus a full application

Clients regularly ask whether pre-application advice is worth paying for. My view is straightforward. It is usually sensible where the site is constrained, the design is ambitious, or the house sits in or near a conservation area.

Pre-app advice can expose concerns early. Officers may indicate that the frontage is too assertive, the ridge height too ambitious, or the rear form too dominant in relation to neighbouring gardens. That feedback is not always polished, and it is not binding, but it can save months if it helps the team adjust the proposal before a full package is prepared.

On a simpler infill plot, or where the planning position is already clear from policy and immediate context, a direct application can be the better route.

A full application needs more than attractive drawings. It needs a coherent planning case supported by the right information, such as surveys, design statements, heritage input where relevant, and technical responses to drainage, trees, energy strategy, and neighbouring amenity. In this part of London, the schemes that secure consent are usually the ones that look carefully considered from every angle, not just visually impressive.

A planning application succeeds when the massing, layout, technical reports and written case all point in the same direction.

Why local knowledge changes outcomes

Local experience does not guarantee approval. It improves judgment.

In South West London, that usually means knowing where planners are likely to focus first. In one street, the key issue may be preserving the established roofscape. In another, it may be side spacing, basement impact, or whether a large glazed rear elevation creates overlooking. On tight suburban plots, a few hundred millimetres in width or height can be the difference between a scheme that feels well mannered and one that attracts resistance.

Conservation areas add another layer. They do not prevent contemporary houses, but they do demand discipline. Materials, proportion, boundary treatment, and the way the building meets the street all need to show restraint. The strongest bespoke homes in these settings are rarely the loudest. They are the ones that feel settled, carefully detailed, and clearly rooted in their immediate context.

Timings also need realistic handling. A practical guide to how long planning permission takes in 2026 in the UK is useful reading before submission, especially if the house will require specialist reports or design revisions after officer feedback.

What tends to help, and what usually causes problems

What tends to help:

• A proposal that reads the street accurately. Councils respond better when a new house acknowledges the grain of the area, even if the architecture is clearly modern.

• Early technical input. Arboricultural, transport, drainage, heritage, or daylight advice can resolve issues before they become objections.

• A disciplined approach to scale. On smaller plots, controlled massing usually achieves more than forcing extra area into the envelope.

• A clear sustainability strategy. South West London boroughs increasingly expect new homes to show credible energy performance, fabric efficiency, and responsible water management from the outset.

What usually causes problems:

• Trying to maximise every square metre. The short-term gain often weakens the planning case and can reduce the quality of the house itself.

• Treating neighbour impact as secondary. Overlooking, loss of light, and a sense of enclosure are common reasons for resistance.

• Using pre-app feedback selectively. If officers raise concerns about height or bulk, those points need a design response, not cosmetic edits.

• Underestimating heritage sensitivity. A plot just outside a conservation area can still be judged on how it affects the wider setting.

Planning permission for a bespoke home in South West London is usually won before the application is submitted. It is won in the appraisal, in the discipline of the early design moves, and in understanding exactly how much ambition the site can carry.

Defining Your Brief and Planning Your Budget

A strong brief is not a wish list. It is a set of priorities arranged in the right order. That sounds obvious, but many bespoke home projects become muddled because clients begin with finishes before they have resolved how they want to live. A stone specification or a tap finish can wait. The daily logic of the house cannot.

Start with how you live

The best briefs are built around routines. Where do school bags land? How often do you host? Do guests stay overnight? Is cooking a public family activity or something that needs separation from entertaining? Does anyone need acoustic privacy for work, music or fitness? If a house includes a cinema, wine room or gym, should these spaces feel tucked away, or connected to the social life of the house?

These questions often reveal more than room schedules do. A client might say they need five bedrooms, but the actual requirement is more nuanced: two children at home now, one future guest suite, one study that can convert later, and one bedroom placed carefully for long-term flexibility. That distinction matters because it affects circulation, structure and budget.

Luxury is defined by priority, not by quantity

A house starts to feel expensive in all the wrong ways when every room is treated as equally important. Successful schemes usually have a hierarchy.

For one client, the priority may be a dramatic kitchen and garden sequence with quieter secondary rooms. For another, it may be a calm principal suite, a proper boot room, and beautiful joinery that makes everyday storage effortless. In Wimbledon, where plots can be tight and values are high, disciplined prioritisation usually leads to better architecture than trying to maximise every possible amenity.

The brief should identify what must be exceptional, what simply needs to work well, and what can be left for a later phase if required.

Initial Project Brief and Budget Checklist

Category	Requirement / Question	Your Notes / Priority (High/Med/Low)
Household	Who will live in the house now, and how might that change over time?
Layout	Do you want formal rooms, open-plan spaces, or a mix of both?
Daily Routine	Where do mornings bottleneck now, and what would improve them?
Work and Study	Do you need one study, two workspaces, or adaptable rooms?
Entertaining	How many guests do you typically host, and in what style?
Garden Connection	Should the main living spaces open fully to the garden?
Wellness	Are a gym, sauna, treatment room or pool important?
Basement	Is below-ground space essential, or only desirable?
Storage	What needs dedicated storage beyond standard wardrobes?
Interiors	Which elements matter most, such as joinery, staircases or natural materials?
Sustainability	What level of environmental performance do you expect?
Programme	Is there a target move-in date, school deadline or other trigger?
Budget	What is the full project budget, including fees, VAT and contingency?
Flexibility	Which items are non-negotiable, and which could be reduced if needed?

How budget planning should work

Budget planning needs honesty at the start. Not because ambition is a problem, but because hidden assumptions are. Clients often think in terms of construction cost alone, yet a bespoke project also includes professional fees, surveys, statutory costs, VAT, specialist consultant input, planning-related work, interior fit-out, and contingency.

The budget also needs to reflect specification. A clean, restrained house with excellent proportions can still be high-end if the envelope performs well and the detailing is rigorous. By contrast, a larger house with too many materials, over-complicated junctions and poorly coordinated services may cost more while delivering less quality.

A sensible process usually does three things early:

• Sets an all-in project budget, not just a build figure.

• Separates essential scope from aspirational scope, so decisions can be made calmly.

• Tests the brief against the likely site capacity, because oversize expectations create the most painful redesigns later.

In practice, the brief and the budget should evolve together. If they don't, the project either stalls in design or becomes compromised on site. Good new home planning avoids both.

Integrating Sustainability and Protecting Heritage

A common South West London planning problem looks like this. The house needs to feel generous and calm inside, the plot is tighter than it first appeared, the street sits within or beside a conservation area, and the council expects clear evidence on energy performance, overheating, drainage and ecology. If those requirements are treated separately, the design starts to pull apart. If they are resolved together from the outset, the project usually becomes stronger.

Sustainability is now part of the architectural brief

For a bespoke new home, sustainability affects the shape of the building as much as the specification. The government's Future Homes Standard 2023 consultation sets out the direction of travel for lower operational carbon in new housing, with major reductions expected through better fabric performance and low-carbon heating. For clients, the practical consequence is clear. Air source heat pumps, better insulated envelopes, airtight construction, solar control and well-resolved ventilation are no longer niche choices. They need to be designed in early, especially on constrained urban plots where plant location and acoustic impact can become planning issues.

In Wimbledon, Richmond, Kingston and neighbouring boroughs, this also intersects with local policy. Councils will often look closely at overheating risk, urban greening, sustainable drainage and biodiversity, particularly where back gardens are being intensified or infill sites are replacing permeable surfaces with built form.

The high-end part of the brief does not disappear. It requires discipline. A refined house usually performs better because the design is more controlled: fewer unnecessary corners, better window placement, clearer service zones, and materials chosen for longevity rather than effect. For clients weighing aesthetics against performance, our guide to earth-friendly architecture sets out the principles in more detail.

What good sustainable design looks like on a South West London plot

On smaller plots, efficiency starts with layout. Glazing should frame views and bring in light, but too much west-facing glass can create overheating that is expensive to correct later. Basements can add area, though they also introduce cost, excavation risk and drainage complexity. Green roofs and permeable paving can help with rainwater management, but they need proper build-ups and maintenance access.

The strongest schemes usually share a few characteristics:

• Fabric-first construction, with insulation, airtightness and thermal bridging addressed in the detailing rather than left to the contractor to resolve on site.

• Low-carbon heating and hot water systems planned with space, noise and maintenance in mind.

• Shading, orientation and ventilation considered as part of the architecture, particularly where privacy constraints limit window positions.

• Site design that earns its place, supporting drainage, biodiversity and the setting of the house rather than acting as a cosmetic layer at the end.

These choices affect appearance. They also affect planning confidence and long-term running costs.

Heritage should guide judgement

In South West London, heritage constraints are often subtle. A site may not be listed, but it may sit within a conservation area, back onto historic gardens, face a locally distinctive street, or be visible between established houses where roofscape and boundary treatment carry real weight. Planning officers will usually be less interested in whether a house copies an older style than in whether it understands the character of the place.

That requires close reading of the context. In Wimbledon Village, for example, the grain of development, mature planting and the relationship between houses and their setting often matter as much as the architecture itself. In parts of Richmond, material tone, brickwork, roof form and the depth of reveals can make the difference between a proposal that feels settled and one that feels imposed.

Copying period details rarely helps. A better approach is to identify the local cues that matter, then respond with proportion, restraint and good materials. Contemporary design can work very well in these settings, provided it is calm enough and precise enough.

Shortcuts show quickly here.

On infill plots and corner sites, heritage and sustainability often support the same decisions. A simpler massing strategy usually sits better in the street and is easier to insulate and seal properly. Well-judged openings improve both elevation composition and energy performance. Durable natural materials tend to weather more convincingly in established settings and reduce the need for replacement.

A bespoke home should feel as though it belongs to its setting and to its time. In South West London, that balance is often what secures permission and what makes the house rewarding to live in years later.

Assembling Your Professional Project Team

A common South West London scenario goes like this. A client finds a tight plot in Wimbledon, assumes the architect can sort planning, asks a builder for an early price, then discovers the scheme also needs careful cost control, neighbour strategy, drainage input and a clearer route through local policy. By that point, time has been lost and decisions start getting made in the wrong order.

The right team prevents that.

On a bespoke home, the architect usually leads, but the project only runs well when the supporting consultants are brought in at the right moment and given clear roles. That matters even more on smaller plots, in conservation areas, and on sites where basement excavation, mature trees, privacy constraints or ambitious sustainability targets all pull the design in different directions.

Start with the architect, but judge them on more than design taste

A good architect does far more than prepare drawings. They test whether the brief fits the site, advise on planning risk, coordinate technical input, and keep the house coherent as regulations, budget and construction realities tighten around the design.

In practice, three checks tell you a lot:

• Relevant experience. Look for built work on new homes, infill sites, replacement houses and sensitive settings in places such as Wimbledon, Richmond or Putney. Local experience helps because each borough has its own habits in pre-application advice, design review and planning interpretation.

• Professional standing. ARB registration and RIBA chartership indicate formal standards, insurance cover and professional accountability.

• A clear working method. A practice should be able to explain, in plain English, how it moves from briefing to planning, technical design, tendering and site inspection.

Chemistry matters too. You will discuss cost, compromise, programme pressure and design changes over many months. If communication feels vague or strained at the outset, it usually gets worse once an application is under scrutiny or a contractor is waiting for an answer on site.

Build the wider team around the risks in your project

The consultant list should reflect the actual demands of the site, not a generic template.

Typical appointments include:

• Structural engineer for foundation design, transfer structures, basement retaining walls and long-span spaces.

• Quantity surveyor or cost consultant to test the brief against the budget early and track changes as the design develops.

• Planning consultant where policy issues, conservation constraints or neighbour impact are likely to need a more strategic case.

• Party wall surveyor if excavation, boundary work or close adjoining properties are involved.

• Garden design specialist where outside space, levels, drainage and the relationship between house and garden need proper design attention.

• M&E designer for heating, cooling, ventilation, lighting integration and plant space planning.

Not every project needs every consultant on day one. A compact replacement dwelling on a straightforward plot may need only a lean team at first. A basement house on a constrained South West London site often benefits from earlier input, because structure, waterproofing, services and cost planning affect the architecture from the outset.

Harper Latter Architects sets out an eight-step process covering early consultation through to completion, alongside services in new builds, conservation, interiors and site architecture. That sort of joined-up structure can work well where the house, interior planning and external spaces need to be resolved together rather than passed between separate advisers.

Questions worth asking before you appoint anyone

The best interviews are practical. Ask how the team would approach your site, what they would test first, and where they expect pressure points to appear.

Useful questions include:

1. How would you assess whether the plot can support the brief?

2. When would you bring in cost advice, and how do you keep that advice active through design development?

3. Which consultants would you appoint early for a constrained South West London site, and why?

4. How do you handle pre-application discussions with the local authority?

5. How do you control design changes once technical information is underway?

Listen for specific answers. Strong teams talk about sequence, responsibility and trade-offs. If every answer stays at the level of appearance, there is a good chance the hard parts of the project are being underestimated.

The best project teams are rarely the biggest. They are the ones with clear leadership, good judgement and enough local experience to spot the issues that commonly affect bespoke homes in South West London before those issues turn into delay, redesign or avoidable cost.

Navigating the Design and Procurement Programme

A South West London house can look settled on paper and still be vulnerable in programme terms. A scheme on a tight Wimbledon or Putney plot may need planning sign-off, party wall coordination, utility enquiries, basement risk review, detailed sustainability input and contractor pricing to line up in the right sequence. If those steps overlap carelessly, the project slows down later, usually at the point where changes cost the most.

The RIBA Plan of Work 2020 remains the clearest framework for structuring that sequence. It breaks a project into defined stages from strategic definition through to use, so design decisions, consultant input, planning submissions, technical information and contractor appointment happen in a controlled order. On bespoke homes, that order matters because a late change to structure, glazing, plant space or levels can affect planning, cost and buildability at the same time. The RIBA Plan of Work 2020 overview sets out the stage structure, but where a source cannot verify performance figures, it is better not to rely on them. In practice, the benefit is straightforward. Clear stages reduce rework.

Concept design and spatial coordination

Concept design sets the house up properly. For a constrained South West London site, that usually means testing how the building sits within its neighbours, how daylight reaches the plan, where privacy becomes sensitive, and whether the garden still feels generous once the footprint, retaining walls and outbuildings are accounted for.

The first layouts should answer practical questions before stylistic ones. Can the entrance sequence feel calm rather than compressed? Does the stair belong where it is drawn, or is it forcing awkward circulation? Is the best room positioned toward the best part of the site? On smaller plots, one wrong move in plan can create several secondary problems, including compromised storage, poor plant space or difficult structural spans.

As the preferred option develops, coordination becomes more exact. Furniture layouts are checked properly. Floor-to-floor heights are tested against planning limits and roof form. Structural logic starts to align with openings and room proportions. Mechanical and electrical allowances are considered early, especially where clients want comfort cooling, discreet ventilation, home automation, wine storage or a high-spec basement wellness area.

Three habits tend to keep this stage under control:

• Keep options open for long enough to compare them properly, then choose. Too many live schemes waste time and blur decision-making.

• Review the design in model form as well as plan and elevation. Tight urban plots often hide problems at corners, roof junctions and level changes.

• Resolve the servant spaces early. Utility rooms, boot rooms, plant areas, secondary stairs and storage determine how well the house works day to day.

Technical design protects quality and cost

Technical design is where bespoke houses either hold together or start to drift. At this stage, the project moves from intent to instruction. Wall build-ups, waterproofing, insulation continuity, staircase tolerances, shadow gaps, glazing interfaces, drainage runs, lighting positions and joinery details need to be drawn clearly enough for pricing and construction.

That is particularly important in South West London, where high expectations often sit alongside planning and site constraints. A conservation setting may require careful material choices and restrained external detailing, while current energy standards still demand strong thermal performance and low air leakage. Those two objectives can work together, but only if they are coordinated carefully. Slim frames, natural stone, brick detailing, concealed ventilation and renewable systems all have knock-on effects on structure, cavity depths, maintenance access and cost.

Clear technical information also gives the client more control once the contractor is appointed. If details are unresolved, substitutions are harder to assess and site queries multiply. If the information is well coordinated, prices are more reliable and quality is easier to defend.

Drawings do more than describe the building. They set the standard for what can be priced and built.

Specialist design input often intensifies here. Joinery, stone, metalwork, glazing, lighting control, heating and outdoor thresholds should be coordinated as part of one package, not left as isolated decisions by different suppliers.

A short visual introduction can help make the process feel less abstract:

https://www.youtube.com/watch?v=q3eqVL-O3DQ

Choosing a procurement route

Procurement is the route used to appoint the contractor and secure the build price. For bespoke residential work, the two routes clients usually compare are competitive tender and negotiated tender. Neither is objectively better. The right choice depends on the design status, the complexity of the house and the level of price certainty required at that point.

Competitive tender suits projects with a well-developed technical package. Several contractors price the same information, which makes comparison more meaningful. It works best where the design is settled and the specification is clear.

Negotiated tender suits houses where early contractor input will improve sequencing, logistics or buildability. That can be useful on restricted urban sites, basements, homes with substantial specialist packages, or projects where access and neighbour interfaces need careful handling from an early stage. It can save time, but only if independent cost checking stays in place and the contractor is selected carefully.

A practical comparison looks like this:

Route	Usually suits	Main advantage	Main caution
Competitive tender	Well-developed designs with clear documentation	Better price comparison across contractors	Incomplete information produces uneven returns and later claims
Negotiated tender	Complex or specialist homes needing early builder input	Better collaboration on sequencing and buildability	Cost control must stay active throughout

There is also a human factor. The lowest figure is not always the safest figure. On high-end homes, a contractor's attitude to detail, programming, reporting and subcontractor management often matters as much as the headline number.

What clients should expect during the programme

Each stage asks for a different kind of client decision. Early on, the work is strategic. Clients need to be clear about priorities, room hierarchy, long-term use and how far they want to push the site. During planning, timely decisions help the team respond to feedback without losing momentum. During technical design, discipline matters more than speed. Finishes, fittings and specialist packages need to be chosen in line with the architecture, budget and lead times. At procurement stage, clients need a clear view on risk, quality and how much certainty they want before committing to a contractor.

The projects that run well are rarely the ones that move fastest in the opening weeks. They are the ones that make decisions at the right moment, with the right information in front of them. On a bespoke house in South West London, that usually saves more time and money than any attempt to compress the programme.

Realising Your Vision From Construction to Handover

Once the contractor is on site, some clients expect the architect's role to fall away. On a bespoke house, that is rarely wise. Construction is where the earlier discipline is tested, and where seemingly small decisions can either protect or erode the quality that was hard won during design.

What happens during construction

During the build, the architect typically reviews progress, responds to technical queries, inspects work against the design information and administers parts of the contract if appointed to do so. That oversight is valuable because even a good contractor still needs coordinated decisions when site conditions differ from assumptions, materials become unavailable, or interfaces between trades need clarification.

This is especially important on high-end homes where several layers of workmanship overlap. Stair details meet flooring tolerances. Glazing abuts joinery. External levels affect threshold design. Grounds work influences drainage and visual finish. Without steady architectural input, these moments can become fragmented.

A well-run site process tends to include:

• Regular inspections so issues are identified before they are buried behind finishes.

• Clear information flow between architect, contractor and specialist suppliers.

• Disciplined approval of samples and mock-ups for visible materials and bespoke details.

• Measured payment certification tied to actual progress and quality.

The most expensive defects are often not dramatic structural failures. They are small coordination mistakes repeated across the house.

Handover should feel organised, not rushed

A proper handover is more than being given keys when the decorating ends. The house should be reviewed carefully, systems demonstrated clearly, and any defects logged in an organised snagging process. The aim is not perfection in the abstract. The aim is to ensure the home is ready to live in, with outstanding items identified and resolved responsibly.

Clients should expect practical support at this stage. Heating and ventilation systems need explaining. Lighting controls should make sense. Maintenance information should be compiled. If the house includes specialist features such as bespoke joinery, integrated AV, wine storage or external kitchens, the handover should account for those too.

The reward for disciplined new home planning is not just planning consent or a smooth build. It is the moment the house begins to feel inevitable, as though it could only ever have been designed this way for this site and this way of living. That is what makes a bespoke home worth doing properly.

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If you're planning a bespoke home in Wimbledon, Richmond, Wandsworth or the wider South West London area, Harper Latter Architects can help assess your site, shape the brief, and guide the project from early planning through to completion with a clear, design-led process.