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Kitchen Extensions in Surrey & Elmbridge

  • 30 years experience
  • 10-year structural guarantee
  • Fixed fee quotation
  • 5% Scheduling discount
  • 500+ Successful projects

Extend and reconfigure your kitchen to create a brighter, more social and better connected heart of the home.

Kitchen Extensions in Surrey & Elmbridge by HWP Design and Build

Kitchen extension builders for family homes in Surrey

A kitchen extension can transform how a home is used every day. It can create a larger kitchen, dining space, family area, utility room, pantry, better storage and a stronger connection to the garden.

HWP Design & Build delivers kitchen extensions across Elmbridge, East Molesey, Esher, Thames Ditton, Surbiton, Kingston and nearby Surrey towns. We coordinate the extension design, structural openings, glazing, drainage, kitchen layout, electrics, lighting, heating, ventilation, Building Regulations and final finish.

A successful kitchen extension needs the kitchen design and construction planning to work together. Cabinetry, appliances, islands, rooflights, doors, utilities, drainage and electrical routes should be planned before the build is too far advanced.

Clear scope, fixed-price clarity and local accountability

HWP Design & Build is the trading name of SMA Design & Build Ltd. We combine over 30 years of hands-on industry experience with practical design thinking, insured delivery, tidy site management, quality finishing and aftercare support.

Learn more about our process, accreditations, insurance and guarantees, aftercare and customer reviews.

Kitchen extension build progress in a Surrey home
Kitchen extension completed with high-quality finishes

Kitchen Extensions in Surrey & Elmbridge:

HWP Design & Build provides kitchen extension design and construction across Surrey, Elmbridge and nearby South West London. We assess the existing kitchen layout, garden depth, boundaries, structure, drainage, glazing, lighting, heating, ventilation, kitchen specification, planning, Building Regulations and finish level before preparing a fixed-price quotation.

Is your home suitable for a kitchen extension?

Kitchen extensions work best when the layout is planned around how you cook, eat, entertain and move through the home. We review the existing kitchen, rear rooms, garden connection, drainage and structural openings before recommending a design route.

  • Existing kitchen size, position and connection to dining or living rooms.
  • Garden depth, rear access, boundary position and neighbouring windows.
  • Structural openings, steelwork and temporary support for open-plan layouts.
  • Drainage, appliance, sink, utility and WC service routes.
  • Rooflights, lanterns, sliding doors and daylight strategy.
  • Kitchen island, storage, lighting, heating and ventilation requirements.

What type of kitchen extension is right for your home?

The best kitchen extension depends on the property, budget, garden, planning route and whether the existing ground floor also needs refurbishment.

Option Best suited to Typical benefit
Rear kitchen extension Homes with enough garden depth behind the existing kitchen. Creates a larger kitchen-dining space and better garden connection.
Side return kitchen extension Homes with a narrow kitchen and underused side passage. Adds width, daylight and a more practical kitchen layout.
Wrap-around kitchen extension Homes needing both depth and width across the ground floor. Creates a major open-plan transformation with utility and storage options.
Kitchen extension with utility Families needing laundry, pantry or boot-room space. Keeps the main kitchen calmer and more organised.
Kitchen extension with refurbishment Homes where the existing rooms also need reconfiguring. Creates a more seamless whole-ground-floor layout.

Planning permission, permitted development and local design context

Some kitchen extensions can fall under permitted development, especially where the proposal is a straightforward rear extension within the relevant limits. Others need planning permission because of size, side elements, height, previous extensions, conservation context, materials or neighbour impact.

We can review whether your project is likely to need planning permission, whether a lawful development certificate is sensible, and how the design should respond to local expectations in Elmbridge, Surrey and nearby South West London.

  • Permitted development checks for size, height, depth, boundary position and materials.
  • Householder planning applications where the proposal exceeds permitted development limits.
  • Conservation area, neighbour, daylight, overlooking and street-scene sensitivity reviews.
  • Coordination between drawings, structural information, specification and build scope.

Building Regulations, structure and technical coordination

Extensions that create habitable space normally need Building Regulations approval. This protects the safety, comfort and long-term value of the finished work, especially where foundations, structure, drainage, insulation, ventilation, glazing, electrics, heating and fire safety are involved.

  • Foundations, ground conditions, drainage and structural stability.
  • Steelwork, load transfer, temporary works and roof structure.
  • Thermal insulation, airtightness, ventilation and condensation control.
  • Heating, plumbing, electrics, lighting and service alterations.
  • Fire safety, glazing safety, smoke detection and escape considerations.
  • Inspection coordination and completion documentation for future sale or refinancing.

We coordinate Building Regulations support so the finished extension is properly designed, checked and signed off.

Party wall, neighbours, drainage and access

Many house extensions around Surrey and South West London involve shared boundaries, neighbouring foundations, drainage routes, tight access and disruption to family life. These practical issues should be reviewed before work starts.

  • Party wall matters: notices may be required for work on or near shared boundaries or excavation close to neighbouring structures.
  • Drainage: manholes, soil pipes, rainwater routes and new kitchen or utility layouts can influence the build route.
  • Access: tighter plots can affect deliveries, waste removal, scaffolding, temporary works and site protection.
  • Neighbour impact: daylight, overlooking, noise and disruption should be considered early.

Where required, we can support the project with party wall advice, build sequencing and clear communication around the practical impact of the works.

How much does a kitchen extension cost in Surrey?

Kitchen extension cost depends on footprint, foundations, drainage, steelwork, roof design, glazing, kitchen specification, appliances, utility rooms, heating, lighting, ventilation and internal refurbishment. We avoid misleading headline prices because each property, scope and specification is different.

Once we understand the property and project brief, we prepare a clearer quotation based on real site conditions, drawings, specification, approvals and finish expectations.

Cost factor Why it affects the quotation
Kitchen specification Cabinetry, appliances, worktops, islands, splashbacks and storage can be major budget drivers.
Structural openings Open-plan kitchen extensions often require steelwork and careful temporary support.
Drainage and services Sinks, dishwashers, utilities, WCs and extraction routes need early coordination.
Glazing and rooflights Sliding doors, roof lanterns and rooflights affect cost, light and thermal performance.
Heating and ventilation Underfloor heating, radiators, extraction and ventilation should be planned around the kitchen layout.
Finish level Flooring, lighting, decoration, joinery and making good to the existing rooms affect the final price.

For broader budget planning, read our Surrey house extension cost guide or our Elmbridge house extension costs, planning and timeline guide.

Our kitchen extension process

We use a clear process so design, approvals, pricing and construction remain joined up from the start.

1. Survey and feasibility

We review the existing home, access, boundaries, drainage, structure, planning constraints and how the new space should function.

2. Design and approvals

We coordinate design development, structural input, planning where required and Building Regulations information.

3. Fixed-price quotation

We price from a defined scope and specification so you understand what is included before the build starts.

4. Managed build and handover

We manage the work, coordinate inspections, complete snagging and provide aftercare support.

What happens after you request a kitchen extension quotation?

We review your enquiry, arrange a suitable time to discuss the property, then assess layout, access, structure, planning route, Building Regulations, likely disruption and the level of finish required before preparing a clear scope.

Start your extension enquiry

Local extension considerations in Elmbridge and Surrey

Extension projects around East Molesey, Esher, Thames Ditton, Kingston, Surbiton, Walton-on-Thames, Weybridge and Cobham often involve established housing stock, neighbouring boundaries, drainage routes, mature trees, conservation sensitivity and restricted access. We review these points early so the design, quotation and programme reflect the real property.

Area Common consideration How we approach it
East Molesey / West Molesey Family homes, rear gardens, shared boundaries and KT8 planning context. Early checks around access, drainage, party wall position, garden connection and buildability.
Hampton Court / Thames Ditton Character homes, river-adjacent settings, conservation sensitivity and proportionate extensions. Designs are tested for scale, materials, roof form, local character and site logistics.
Esher / Claygate Larger family homes, specification-led projects and premium finish expectations. Clear feasibility, design coordination and specification-led pricing before construction.
Kingston / Surbiton Victorian, Edwardian and terrace-style homes with layout and party wall constraints. Practical design around structure, services, neighbours, drainage and sequencing.
Walton-on-Thames / Weybridge / Cobham Detached and semi-detached homes with scope for larger extensions and whole-home upgrades. We coordinate design, specification, structural requirements and build programme as one managed route.

Common kitchen extensions problems we help prevent

The best extension projects are resolved before work starts. We help identify the practical issues that can affect budget, programme, compliance and finish quality.

  • Kitchen design separated from structure, glazing, drainage, electrics and heating.
  • Large rear openings planned before steelwork and temporary support are coordinated.
  • Rooflights or lanterns added without enough thought to summer heat and year-round comfort.
  • Kitchen delivery dates agreed before the build programme is realistic.
  • Utility, WC, appliance and extraction routes decided too late.
  • Old and new flooring levels not planned for a seamless finish.

Why choose HWP Design & Build?

  • Fixed-price clarity: a defined scope and quotation before work begins.
  • One accountable team: design, approvals, construction, finishing and aftercare coordinated through one route.
  • Local experience: house extension support across East Molesey, Elmbridge, Surrey and nearby South West London.
  • Practical design thinking: layout, light, storage, flow, garden connection and daily use considered from the start.
  • Compliance-led delivery: planning, Building Regulations, party wall and inspection requirements reviewed early.
  • Sustainable approach: sensible insulation, ventilation, glazing and material choices to improve comfort and long-term performance.

Kitchen Extensions in Surrey & Elmbridge across Elmbridge, Surrey and South West London

We are based near the Surrey and London border and regularly support homeowners planning extensions, loft conversions, refurbishments and full home improvements across the local area.

Key locations include East Molesey, West Molesey, Hampton Court, Thames Ditton, Esher, Claygate, Walton-on-Thames, Weybridge, Cobham, Kingston upon Thames, Surbiton, Teddington, Twickenham, Richmond and Wimbledon and nearby South West London.

Kitchen Extension FAQs for Surrey & Elmbridge Homeowners

Yes. We can help plan the kitchen layout, lighting, glazing, island position, service routes and practical day-to-day use of the space.

Some do, depending on size, height, depth, property type, materials and previous extensions. We can advise whether permitted development, lawful development or planning permission is the safest route.

Often yes, subject to survey and structural input. Large rear openings typically need steelwork, temporary support and careful Building Regulations coordination.

Usually after the design, dimensions and programme are sufficiently fixed. We help coordinate timing so delivery aligns with build readiness.

Yes. Underfloor heating is common in kitchen extensions and can work well when insulation, floor build-up and controls are planned properly.

Yes. Many clients combine a kitchen extension with internal reconfiguration, flooring, decoration and services upgrades so the whole ground floor feels cohesive.
Open-plan kitchens, rear extensions, side returns and family living spaces.

Ready to price your kitchen extension?

Whether you want a larger kitchen, island, dining area, utility room or full ground-floor transformation, we can assess your property, explain the best extension route and provide fixed-price clarity before work begins.

Kitchen Extensions in Surrey & Elmbridge across East Molesey, Elmbridge, Surrey and nearby South West London.