What is a house extension Hampstead Garden Suburb?
A house extension in Hampstead Garden Suburb is one of the most effective ways to create additional space without giving up the character, location and long-term value of your existing home. In a neighbourhood known for elegant period houses, conservation sensitivities, high property values and architecturally distinctive streets, extending a property requires more than a standard design-and-build approach. It calls for careful architectural thinking, detailed planning strategy, robust technical coordination and a clear understanding of how Barnet planning policies apply to homes in and around Hampstead Garden Suburb.
Whether you are considering a rear kitchen extension, a side return, a basement level, a loft conversion with dormer, or a full-width multi-storey addition, the best results come from balancing lifestyle goals with planning constraints, structural feasibility and budget control. Many properties in Hampstead Garden Suburb are Victorian, Edwardian or interwar homes with original brickwork, decorative detailing and mature garden settings. That means every extension needs to be designed in a way that respects the host building, neighbouring amenity, daylight, privacy and the wider streetscape. In conservation areas, the quality of design is especially important, and poorly considered proposals can face delays or refusal.
Homeowners in Hampstead Garden Suburb usually extend for one of several reasons: to create a larger kitchen-dining space for family life, to add a utility room or home office, to improve bedroom accommodation, to introduce better connections to the garden, or to unlock underused space in the roof or basement. In many cases, the driver is not simply more square metres, but better planning of the home as a whole. A well-designed extension can improve natural light, circulation, energy efficiency and property value while making the house work better for modern living. This is particularly relevant in Hampstead Garden Suburb, where moving costs are high and finding a larger local property can be significantly more expensive than extending.
Because Hampstead Garden Suburb sits within one of London’s most design-sensitive residential markets, there is strong demand for extensions that feel refined, contextual and enduring rather than generic. Materials, glazing proportions, roof forms, brick matching, landscaping and internal layout all matter. So does the relationship between old and new. Some clients prefer a seamless extension that appears original to the house, while others want a contemporary intervention that contrasts elegantly with the existing building. Both approaches can work, but success depends on proportion, detail and planning justification.
This guide explains the main types of house extension in Hampstead Garden Suburb, what to expect from planning permission and building regulations, realistic cost ranges, likely project timelines, and the most common mistakes to avoid. It is written for homeowners who want a practical and detailed overview before starting a project, and it reflects the realities of extending high-value homes in North London where design scrutiny, access constraints and build quality expectations are all above average.
Types of house extension Hampstead Garden Suburb
Understanding the different types of house extension hampstead-garden-suburb available is essential for making the right choice for your property, budget, and requirements. Each type has distinct advantages, cost implications, and suitability for different property types.
Rear Extension
Rear extensions are among the most popular options for Hampstead Garden Suburb homes because they can transform the ground floor into a generous kitchen, dining and family space with direct garden access. They often improve daylight through rooflights, large sliding or steel-framed doors and open-plan layouts. For terraced, semi-detached and detached houses alike, a rear extension can unlock the underused back portion of the plot and make the house feel significantly larger and more contemporary while preserving the front elevation. In many homes, this type of extension also allows the introduction of utility rooms, pantries, cloakrooms and better storage.
The main constraints are planning depth limits, impact on neighbours, loss of garden space and structural complexity where the rear wall is removed. In Hampstead Garden Suburb conservation areas, highly visible rear additions may still be scrutinised for design quality and materials. Costs can rise quickly when bespoke glazing, level changes, drainage diversions or complex steelwork are involved. If the extension is deep and the original house is narrow, careful design is needed to avoid creating a dark middle zone.
Side Return Extension
Side return extensions are ideal for Victorian and Edwardian houses with narrow alley-like side spaces. They are especially effective in Hampstead Garden Suburb terraces where the existing kitchen is cramped and disconnected from the garden. By infilling the side return and combining it with partial or full rear reconfiguration, homeowners can create a wider, brighter kitchen-living area without extending too far into the garden. This approach often delivers excellent value because it improves usability dramatically while working within the existing footprint logic of the house.
The width gained can be modest, so success depends heavily on intelligent planning and joinery design. Party wall matters are common because the work is close to neighbouring properties. Construction access can be difficult, especially on tight urban plots with limited side entry. Drainage runs, manholes and existing services often sit in the side return and may need rerouting, adding cost and programme risk.
Loft Extension
A loft extension can add valuable bedroom and bathroom accommodation without sacrificing garden space. In Hampstead Garden Suburb, where family homes often need an extra principal suite, guest room or study, converting the roof can be one of the most space-efficient solutions. Dormers, mansard forms and rooflight schemes can create generous usable floor area, and the uplift in value can be substantial when the new floor is well integrated with the rest of the house. It is also often less disruptive to the ground floor than a major rear extension.
Planning constraints are significant in conservation areas, on prominent roofscapes and on listed or architecturally sensitive buildings. Head height, staircase geometry and structural strengthening can limit feasibility. Thermal upgrades, fire safety requirements and acoustic separation all need careful technical design. Loft extensions may also trigger a broader rethink of upper-floor layouts if the stair position is awkward.
Basement Extension
Basement extensions are common in high-value London areas because they add substantial floor area while preserving garden and roofline. In Hampstead Garden Suburb, they can provide cinema rooms, gyms, guest suites, playrooms, wine storage, plant rooms and utility spaces, freeing the main floors for family living. On larger plots, a well-designed basement with lightwells and rear garden connections can feel bright and luxurious rather than subterranean. This type of extension can be particularly attractive where planning above ground is restricted.
Basements are typically the most expensive and technically demanding form of extension. They require specialist structural and waterproofing design, detailed site investigation and careful management of excavation, party wall issues and neighbour concerns. Camden applies close scrutiny to basement development because of drainage, structural stability and amenity impacts. Programme length is usually longer, and risk management is crucial.
Double Storey Extension
A double storey extension can add meaningful space to both ground and first floors, making it suitable for growing families who need larger living areas and more bedrooms or bathrooms. In Hampstead Garden Suburb detached and semi-detached homes, this can be a cost-efficient way to achieve more square metres than a single-storey addition alone. It can also improve the overall balance of the house if the existing plan is cramped or if upper-floor rooms are disproportionately small.
Planning sensitivity is greater because upper-floor mass is more visible and can affect overlooking, daylight and the character of the building. Matching the original architecture is essential, particularly on period homes. Structural work is more extensive, and the impact on occupants during construction can be considerable. Neighbour objections are more common with two-storey proposals than with lower-level additions.
Planning Permission in London
Planning for a house extension in Hampstead Garden Suburb requires a site-specific approach. While some smaller projects may fall within permitted development rights, many homes in Hampstead Garden Suburb are affected by conservation area controls, Article 4 directions, heritage considerations, previous planning conditions or design sensitivities that mean full planning permission is needed. Even where permitted development may technically apply, obtaining a lawful development certificate is strongly recommended to confirm that the proposal is lawful before construction starts.
The first planning question is whether the property is located in a conservation area, is listed, or forms part of a terrace or group where rooflines, façades and rear additions are particularly sensitive. Hampstead Garden Suburb contains a high concentration of architecturally important buildings and protected streetscapes. In such contexts, planning officers will typically assess not just the amount of extension proposed, but its effect on the significance of the host building and the surrounding area. Materials, roof profile, fenestration, boundary treatment and visibility from public viewpoints can all influence the decision.
Rear extensions are often judged on depth, height, relationship to the original house and effect on neighbouring properties. Common planning concerns include overshadowing, loss of outlook, overbearing impact and privacy. A design that feels reasonable on plan can still be refused if it appears too bulky in elevation or if it causes material harm to an adjoining occupier. For this reason, accurate measured surveys, contextual drawings and daylight considerations are often important at the design stage.
Loft extensions in Hampstead Garden Suburb require particular care because roof alterations can affect the character of the building and wider roofscape. Large box dormers, poorly proportioned rear additions or inappropriate front rooflights may be resisted, especially in visible locations. Mansard roofs can sometimes be acceptable in the right context, but they must be justified in relation to neighbouring buildings and local precedent. If the house is listed, listed building consent may also be required in addition to planning permission.
Basement extensions are subject to detailed scrutiny in Camden. Applications may require supporting information relating to structural methodology, hydrology, drainage, construction management and tree impacts, depending on the site. Because excavation can affect neighbouring structures and local ground conditions, early input from structural and basement specialists is essential. A planning strategy for a basement should not be treated as a standard submission; it needs to address policy, engineering and neighbour implications in a coordinated way.
For many Hampstead Garden Suburb projects, pre-application advice can be worthwhile. Although it adds an early stage to the process, it can help identify planning concerns before a full application is submitted and may reduce the risk of costly redesign. This is especially useful for unusual sites, large extensions, conservation area properties and proposals involving significant façade or roof changes.
A strong planning application usually includes existing and proposed drawings, a site plan, design and access statement where required, heritage statement if relevant, and supporting technical documents tailored to the scheme. The narrative matters. In Hampstead Garden Suburb, a successful application often depends on demonstrating that the proposal is proportionate, high quality, sympathetic to the host building and respectful of neighbouring amenity. Generic submissions tend to perform poorly compared with carefully argued, context-led proposals.
Neighbour engagement can also make a difference. While neighbours do not determine the outcome, objections can slow progress and create pressure points. Where a proposal has potential impacts on boundaries, windows or excavation, early communication can reduce misunderstanding. This is particularly important on tight urban sites where construction logistics and temporary disruption may become part of the broader discussion.
In practical terms, homeowners should allow sufficient time for design development, planning preparation, validation and determination. If revisions are requested or if the application is refused and needs amendment or appeal, the overall programme can extend considerably. Starting with a realistic planning strategy is one of the best ways to protect budget and momentum on a Hampstead Garden Suburb extension project.
Building Regulations
Building regulations are separate from planning permission and are required for almost all house extensions in Hampstead Garden Suburb. While planning focuses on whether the proposal is acceptable in principle and in design terms, building regulations deal with how the extension is constructed and whether it complies with technical standards for safety, energy performance and usability. A project that has planning approval cannot legally proceed properly without building regulations compliance.
The key areas covered include structural stability, fire safety, thermal performance, ventilation, drainage, sound insulation where relevant, electrical safety and accessibility. If you are removing load-bearing walls to create open-plan spaces, inserting large rooflights, excavating for a basement or forming new upper-floor accommodation, structural design will be central. Calculations by a qualified structural engineer are normally required for beams, foundations, floor strengthening, retaining walls and roof alterations.
Fire safety is especially important when extending or reconfiguring multi-storey homes. A loft conversion, for example, may require protected escape routes, upgraded fire doors, mains-wired alarms and compliant staircase design. Open-plan layouts may also need careful fire strategy consideration, particularly where the extension changes the relationship between the kitchen and the main escape route. In larger or more complex houses, the fire approach should be considered early to avoid awkward late-stage compromises.
Thermal and energy requirements have become more demanding. New walls, roofs, floors, windows and doors must meet current insulation standards, and the junctions between old and new construction need to be detailed to reduce cold bridging and condensation risk. In many Hampstead Garden Suburb period homes, this can be challenging because the original fabric performs differently from the new extension. A good technical design will ensure that the extension is comfortable, efficient and durable without causing moisture problems in adjacent retained structures.
Drainage is another frequent issue, especially for rear and side return extensions. Existing inspection chambers may sit within the proposed footprint, and foul or surface water runs may need rerouting. If the property connects to shared sewers, additional approvals may sometimes be required. Basement projects introduce a further level of complexity, including waterproofing strategy, sump systems where appropriate and coordination with external ground levels.
Ventilation standards affect kitchens, bathrooms and highly glazed spaces. Modern airtight construction means extract rates, background ventilation and overheating risk need to be considered carefully. Large expanses of glazing can look impressive, but without the right specification and ventilation strategy they can lead to summer discomfort or poor winter performance. Building regulations approval helps ensure the extension functions well in daily use, not just on paper.
There are two main routes to compliance: full plans approval or building notice, though full plans is generally preferable for larger and more complex Hampstead Garden Suburb extensions. It provides greater clarity before work starts and is better suited to projects involving structural alterations, heritage-sensitive details or high-end bespoke construction. Inspections will then take place during the build at key stages such as foundations, drainage, structural works and completion.
Homeowners should also be aware that building regulations interact with party wall matters, warranty expectations, contractor sequencing and insurance. If the extension is being built to a high specification, detailed construction drawings and schedules are essential. Relying on planning drawings alone is rarely sufficient. The more thoroughly the project is technically resolved before site start, the lower the risk of delays, variations and quality issues during construction.
At completion, a final certificate confirms that the work complies with regulations. This is important not only for safety and legal reasons but also for future resale. Buyers and solicitors in the Hampstead Garden Suburb market will expect clear documentation for any extension work, particularly where substantial structural or basement alterations have been carried out.
house extension Hampstead Garden Suburb Costs in London 2025
The cost of a house extension in Hampstead Garden Suburb depends on far more than floor area alone. While homeowners often start with a rough cost per square metre, actual budgets are shaped by design complexity, planning constraints, structural interventions, specification level, access conditions and the quality expected in this part of London. In Hampstead Garden Suburb, build costs are typically above the London average because projects often involve period properties, bespoke detailing, restricted access, conservation-sensitive materials and high client expectations for finishes and craftsmanship.
A small extension, such as a modest side return or compact rear addition, may start around £50,000 to £90,000 where the design is relatively straightforward and the specification is controlled. However, this can rise if extensive glazing, underfloor heating, steelwork, drainage diversion or custom joinery are included. For a medium-sized project, such as a larger rear extension with internal reconfiguration or a loft conversion with bathroom, a more realistic range is often £90,000 to £180,000. Larger schemes, including double storey additions, premium lofts or complex ground-floor transformations, can move beyond £180,000 with ease.
Basement extensions and highly bespoke projects often sit outside typical ranges and may exceed £250,000 to £400,000 or more depending on excavation depth, waterproofing, access, temporary works and interior fit-out. In Hampstead Garden Suburb, where many clients seek integrated lighting, bespoke kitchens, natural stone, high-performance glazing and carefully detailed landscaping, the final figure can increase significantly once all elements are included.
Professional fees should always be accounted for separately from the main construction cost unless your procurement route bundles them together. These may include architect fees, structural engineer fees, planning consultant input, party wall surveyor costs, building control charges, measured survey, drainage survey, interior design and specialist consultants for basements or heritage matters. A realistic pre-construction allowance is essential to avoid underbudgeting early in the process.
There are also hidden or underestimated costs that frequently arise. These include VAT where applicable, utility upgrades, temporary accommodation if you move out during works, kitchen and bathroom supply, flooring, decorating, external works, garden reinstatement and contingency. For older Hampstead Garden Suburb properties, you should also allow for unforeseen conditions such as shallow foundations, damp repairs, timber defects, outdated electrics or drainage issues uncovered once work begins.
Site logistics can materially affect cost. Narrow roads, limited parking, restricted storage, difficult access and neighbour protection measures all influence labour time and preliminaries. If materials must be carried through the house or craned into position, the build becomes more expensive. Similarly, if the project requires careful matching of brickwork, handmade clay tiles, conservation rooflights or specialist joinery, these details improve quality but add to the budget.
The most reliable way to manage cost is to align the design with the budget from the beginning. This means preparing a clear brief, testing options early, obtaining realistic cost advice before planning submission where possible, and developing a detailed technical package before tender. Many overruns happen because clients approve a concept that is too ambitious for their budget, then discover the gap only after planning approval. In Hampstead Garden Suburb, where expectations are high and finish quality matters, value engineering should be strategic rather than reactive. It is better to simplify the form or rationalise the specification early than to compromise important design features later under pressure.
Contingency remains crucial. For refurbishment-led extensions in older houses, a contingency of 10% to 15% is often sensible, and potentially more for basement or structurally complex work. A disciplined procurement process, well-documented scope and experienced contractor are the best safeguards against budget drift. Done properly, a Hampstead Garden Suburb extension can add significant lifestyle and financial value, but only when cost planning is treated as seriously as design ambition.
Quick Cost Summary
Timeline: How Long Does It Take?
The timeline for a house extension in Hampstead Garden Suburb varies according to the size and complexity of the project, but most homeowners should plan for a total duration of six to twelve months from initial design to practical completion, and sometimes longer for complex or basement-led schemes. A realistic programme is essential because planning, technical design and contractor coordination often take more time than expected, particularly in design-sensitive areas.
The design stage commonly takes four to eight weeks for straightforward projects, although larger or more bespoke extensions can take longer. During this period, the architect develops the brief, surveys the existing property, prepares concept options and refines the preferred scheme. In Hampstead Garden Suburb, this stage often includes contextual analysis, planning risk review and careful attention to how the extension will relate to the host building. Rushing design usually leads to avoidable problems later, so this is not the stage to compress excessively.
If planning permission is required, the planning stage often adds eight to twelve weeks from submission to decision, not including the time needed to prepare the application. Validation delays, officer queries, neighbour objections or requested amendments can extend this. Conservation area or basement projects may require more supporting information and therefore a longer lead-in. If pre-application advice is sought first, that adds time but can improve certainty.
Once planning is secured, technical design and building regulations information must be completed. This stage is sometimes overlooked in client programmes, yet it is critical for pricing accuracy and build quality. Detailed drawings, structural calculations, specifications and schedules are produced so that contractors can price the work properly and the site team can build with clarity. Depending on complexity, this may take several weeks to a few months.
Construction duration depends on scale. A small side return or simple rear extension may take four to five months. A medium project involving significant internal alterations may take five to seven months. Larger double storey, loft-and-rear combinations or basement works can take seven to nine months or more. Weather, access, neighbour matters, material lead times and client changes can all affect progress. In Hampstead Garden Suburb, where bespoke materials and high-end joinery are common, procurement lead times should be considered early.
The finishing stage includes second-fix joinery, decorating, flooring, kitchen installation, testing, snagging and final approvals. This may take two to six weeks depending on the level of fit-out. It is often the stage clients are most eager to accelerate, but careful finishing is what gives an extension its polished and cohesive feel. If external landscaping is included, seasonal conditions may also affect completion timing.
One of the most common timeline mistakes is assuming that planning approval means construction can start immediately. In reality, there is usually a substantial amount of technical coordination still to complete. Another mistake is failing to allow for party wall procedures, which can affect the start date where excavations or works near boundaries are involved. Early sequencing of planning, technical design, tendering and statutory matters is therefore essential.
For homeowners who plan to remain in occupation during the build, the timeline should also account for disruption management. Temporary kitchens, phased works and partial decant strategies can keep the house usable, but they may slow construction. In many Hampstead Garden Suburb projects, moving out for the most intensive phase improves efficiency and reduces stress, though it adds cost. The right approach depends on the scale of works and the household’s tolerance for disruption.
Timeline Summary
- Design4-8 weeks
- Planning8-12 weeks
- Construction4-9 months
- Finishing2-6 weeks
- Total6-12 months
The Design Process
At Hampstead Garden Suburb Renovations, we follow a structured design process for every house extension hampstead-garden-suburb project. This process has been refined over hundreds of projects across North London and ensures that nothing is overlooked, budgets are managed, and the final result exceeds expectations.
1. Initial Brief & Site Visit
Every project begins with a conversation. We visit your property, listen to your requirements, understand your budget, and assess the feasibility of your ideas. For house extension hampstead-garden-suburb, this initial visit is crucial — we need to understand the existing structure, identify constraints, and discuss the range of options available to you. This meeting is free and without obligation.
2. Concept Design
Based on the brief, we develop two or three concept design options. These are presented as floor plans, sections, and 3D visualisations so you can understand how the space will look and feel. We discuss the pros and cons of each option, the cost implications, and any planning considerations. This phase typically takes 2–3 weeks.
3. Developed Design
Once you have chosen a preferred concept, we develop it in detail. This includes finalising the layout, specifying materials and finishes, developing the structural strategy with our engineer, and resolving all the technical details that affect how the space works. We provide a detailed cost estimate at this stage so you can make informed decisions about specification.
4. Planning Application (if required)
If planning permission is needed, we prepare and submit the application, including all supporting documents (design and access statement, heritage impact assessment for listed buildings, structural methodology for basements). We manage the application process, respond to any council queries, and negotiate with planning officers where necessary.
5. Technical Design & Building Regulations
We produce detailed construction drawings and specifications — the documents your contractor will build from. These include architectural plans, sections and elevations, structural engineering drawings, services layouts, and a comprehensive specification of materials and workmanship. We submit for Building Regulations approval and manage the approval process.
6. Tender & Contractor Appointment
We invite three to four vetted contractors to price the project from our detailed drawings and specification. We analyse the tenders, interview the contractors, and recommend the best appointment based on price, programme, experience, and references. We help you negotiate the contract terms and agree a realistic programme.
7. Construction & Contract Administration
During construction, we carry out regular site inspections to ensure the work complies with the design, specification, and Building Regulations. We chair progress meetings, manage variations, certify interim payments, and resolve any issues that arise. Our role is to protect your interests and ensure the project is delivered to the agreed quality, programme, and budget.
8. Completion & Handover
At practical completion, we carry out a thorough snagging inspection and produce a defects list for the contractor to address. We manage the Building Control final inspection, obtain the completion certificate, and compile a comprehensive handover pack including all warranties, certificates, maintenance guides, and as-built drawings.
Common Mistakes to Avoid
Over hundreds of house extension hampstead-garden-suburb projects across London, we have seen the same mistakes repeated. Learning from others' errors can save you thousands of pounds and months of frustration.
1. Assuming permitted development applies automatically
Many Hampstead Garden Suburb homeowners assume a rear or loft extension can proceed without planning permission, only to discover conservation area restrictions, Article 4 controls or previous planning conditions. Always check the property’s planning status and obtain formal advice before committing to a design.
2. Underestimating the importance of contextual design
A generic extension that ignores the proportions, materials and character of the existing house is more likely to face planning resistance and may look out of place even if approved. Hampstead Garden Suburb projects need a design response tailored to the building and street.
3. Setting an unrealistic budget too early
Clients often base expectations on national averages or online calculators that do not reflect Hampstead Garden Suburb construction costs. Period property complexity, access constraints and premium finishes can all push budgets higher than expected.
4. Skipping detailed technical design
Planning drawings are not enough to build from. Without a full technical package, contractors may price inaccurately, site queries multiply and quality can suffer. Detailed information reduces risk and helps control cost.
5. Ignoring party wall and neighbour issues
Extensions close to boundaries, excavations and structural alterations often trigger party wall procedures. Leaving this too late can delay the start date and create unnecessary tension with neighbours.
6. Over-glazing without considering performance
Large glazed openings can look impressive but may lead to overheating, glare or poor winter comfort if not properly specified. Good design balances light, thermal performance, ventilation and privacy.
7. Not allowing enough contingency
Older Hampstead Garden Suburb homes can reveal hidden defects once work begins. A contingency fund is essential, especially where structural alterations, drainage changes or basement works are involved.
8. Choosing a builder on price alone
The cheapest quote is not always the best value. Experience with high-quality London residential extensions, good contract administration and strong site management are often more important than a low initial number.
How to Choose a Contractor
The choice of contractor is one of the most important decisions you will make in any renovation project. A good contractor delivers quality work on time and on budget; a poor one can cause delays, cost overruns, defective work, and enormous stress. Here is how to find and evaluate the right contractor for your project.
What to Look For
- Relevant experience: Ask to see completed projects similar to yours in type, scale, and specification. A contractor who specialises in basement conversions may not be the best choice for a period restoration, and vice versa. Request references from recent clients and, if possible, visit a completed project
- Insurance: Verify public liability insurance (minimum £5 million), employer's liability insurance (a legal requirement if they employ anyone), and professional indemnity insurance if they are providing any design input. Ask to see current certificates, not expired ones
- Trade body membership: Membership of the Federation of Master Builders (FMB), TrustMark, or the National Federation of Builders (NFB) provides some assurance of competence and financial stability. For specialist work, look for relevant accreditations (e.g., PCA for waterproofing, NICEIC for electrical)
- Financial stability: A contractor who goes bust mid-project is every homeowner's nightmare. Check Companies House for financial health, look for a stable trading history, and consider whether the company has sufficient resources to manage your project alongside their other commitments
- Communication style: During the quoting process, assess how responsive, clear, and professional the contractor is. This is a preview of how they will communicate during the project. If they are slow to return calls or vague in their quotes at this stage, it will not improve once they have your money
Red Flags to Avoid
- Quoting without visiting the site or seeing detailed drawings
- Requesting large upfront payments (more than 10–15% of the contract value)
- No written contract or a vague, one-page quotation
- Pressure to commit quickly or "special" discounts that expire
- Unable or unwilling to provide references from recent projects
- No insurance certificates available for inspection
- The quote is significantly lower than all others — this usually means something has been missed, not that they are offering better value
Questions to Ask
- How many similar projects have you completed in the last two years?
- Who will be the site manager/foreman for my project, and how many other projects will they be managing simultaneously?
- What is your proposed programme (start date, key milestones, completion date)?
- How do you handle variations and additional work — what is your day rate for unforeseen items?
- What warranty do you provide on your work?
- Can I speak to three recent clients whose projects are similar to mine?
Case Studies
Our portfolio includes hundreds of house extension hampstead-garden-suburb projects across London. Here are three examples that illustrate the range of work we undertake:
Victorian Terrace, Hampstead Garden Suburb (NW11)
A comprehensive house extension hampstead-garden-suburb project on a four-bedroom Victorian terrace in a conservation area. The project required careful liaison with Barnet planning officers to ensure the design respected the architectural character of the street while delivering modern living standards. Completed on time and within the agreed budget, the project added approximately 20% to the property value.
Edwardian Semi, Crouch End (N8)
A family of five commissioned this house extension hampstead-garden-suburb project to create additional space and modernise the property while retaining its Edwardian character. Original features including cornicing, ceiling roses, and timber panelling were carefully restored, while new elements were designed in a contemporary style that complements rather than imitates the original architecture.
Period Property, Highgate (N6)
This substantial house extension hampstead-garden-suburb project in Highgate Village required Listed Building Consent and close collaboration with the local conservation officer. The design balanced the need for modern comfort and energy efficiency with the preservation requirements of the listed building. Specialist heritage contractors were appointed for sensitive elements including lime plastering, timber window restoration, and stone repairs.