Kitchen Extension Central London: Create Your Dream Open-Plan Kitchen
Open Plan Kitchen Extension Services | Victorian & Georgian Specialists | Family Builders Since 2000.
Last Tuesday, a Chelsea couple called us frustrated after three failed planning applications for their Victorian terrace kitchen expansion for Modern Homes
Previous architect’s designs kept getting rejected by Royal Borough of Kensington & Chelsea conservation officers. £12,000 spent on applications and drawings, zero progress, family cooking in a temporary kitchen for eight months.
We visited on Wednesday afternoon. Immediately identified the problem: previous designs ignored Victorian terrace proportions, used inappropriate materials, and didn’t respect conservation area character. We redesigned their open-plan kitchen expansion, respecting period architecture while creating the modern entertaining space they wanted. Planning application submitted on Friday. Approved eight weeks later, first time working with us.
Construction completed in 14 weeks: stunning 6-meter rear extension creating 28m² open-plan kitchen-dining space. Original Victorian features preserved, bifold doors opening to garden, underfloor heating throughout, complete kitchen installation (Gas Safe-certified appliances), all electrical work (NICEIC-certified), building control approved. The family finally have their dream kitchen. Total project, including planning rescue: £87,000. Property value increase: £145,000.
That’s kitchen extensions done properly: conservation expertise, family coordination, period property respect, and complete accountability.
Welcome to Chelsea Property Renovation & Maintenance Ltd, your specialist kitchen extensions Central London partner. Since 2015, our two-generation family business has created hundreds of open-plan kitchens across Chelsea, Kensington, Westminster, Knightsbridge, and Belgravia. We understand Victorian and Georgian property challenges, secure conservation area planning permissions, coordinate all trades in-house (building, electrical, plumbing), and deliver stunning kitchens that transform how families live.
Why Kitchen Extensions Are Perfect for Central London Homes
Victorian and Georgian properties dominate Central London, beautiful period homes with one significant limitation: small, dark kitchens tucked away at the back. These properties were designed when kitchens were servant spaces, not family hubs. Modern living demands something completely different.
Kitchen extension solutions transform these properties:
Creating Open-Plan Living: Victorian terraces typically feature small galley kitchens (8-12m²) separated from dining rooms. A rear kitchen extension removes this wall, extends into the garden, and creates 25-35m² open-plan kitchen-dining spaces, the entertaining hub modern families need.
Bringing Natural Light: Original Victorian kitchens face north (cooler for food storage historically), making them dark and uninviting. Kitchen extensions with bifold or sliding doors flood spaces with natural light, connecting indoor living with garden areas seamlessly.
Adding Property Value: Well-executed open-plan kitchen extensions add 10-20% property value in Central London. A £60,000-£90,000 kitchen extension investment typically returns a £80,000-£150,000 value increase, excellent investment alongside lifestyle improvement.
Respecting Period Character: Our expertise ensures extensions complement Victorian and Georgian architecture. Conservation officers approve our designs because we respect period proportions, use appropriate materials, and create sympathetic additions that enhance rather than compromise original buildings.
Complete In-House Coordination
Kitchen extensions Central London require coordinating multiple trades seamlessly. Our family provides everything in-house, no subcontractors:
Family Structure:
- Builder Cousins: Structural work, extension construction, finishing
- NICEIC Daughters: Complete electrical installations and certifications
- Gas Safe Sons: Kitchen plumbing, gas appliances, underfloor heating
- Parents: Project coordination, planning applications, client liaison
Benefits of family coordination: Single point of accountability means no finger-pointing between trades. Builder cousins prepare walls while NICEIC daughters run electrical circuits simultaneously. Gas Safe sons install underfloor heating as construction progresses. Parents coordinate everything, ensuring on-time, on-budget delivery.
Kensington example: Victorian terrace kitchen extension, 5.5-meter rear projection. Previous quotes suggested 16-18 weeks using subcontractors. Our family completed in 11 weeks seamless coordination, no waiting between trades, family working together toward a single goal. Clients saved 5-7 weeks, moved into a finished kitchen before Christmas as planned.
Conservation Area Planning Expertise
Most Central London sits within conservation areas. Kitchen extension planning applications face strict scrutiny:
What conservation officers assess:
- Design quality (proportions, detailing, materials)
- Impact on period character (respecting original architecture)
- Neighbour impact (overlooking, light, privacy)
- Materials (brick matching, roof materials, windows/doors)
- Overall appropriateness (does extension enhance or harm?)
Our planning success: We’ve secured 400+ kitchen extension planning permissions across Royal Borough of Kensington & Chelsea, Westminster City Council, and surrounding authorities. Our designs succeed because we understand what conservation officers approve:
- Victorian proportions respected (not overly large, appropriately scaled)
- Quality materials specified (reclaimed brick matching originals, slate roofing)
- Period-appropriate details (cornices, window proportions, door styles)
- Heritage statements (explaining design rationale convincingly)
- Pre-application consultation (understanding concerns before formal submission)
Westminster example: Georgian townhouse, Grade II listed. The client wanted a modern kitchen extension, but listed building consent seemed impossible. We designed a contemporary glass box extension clearly distinct from the period building, a modern intervention respecting the historic fabric. Listed building consent approved with conservation officer praise for “exemplary approach to heritage asset.”
Victorian & Georgian Property Specialists
Renovating old kitchen extensions or creating new ones requires understanding period construction:
Victorian Terraces (1840-1900):
- Solid wall construction (no cavity different building approaches)
- London stock brick (matching requires sourcing reclaimed bricks)
- Slate roofs (maintaining consistent roofing materials)
- Original floor levels (often below garden level, requiring step management)
- Rear additions already (many properties have later additions requiring sensitive removal)
Georgian Townhouses (1714-1830):
- Yellow stock brick (beautiful but harder to match)
- Larger gardens (more extension flexibility)
- Stricter proportions (maintaining classical symmetry important)
- Listed buildings (many Georgian properties listed requiring consent)
- Higher ceilings (floor-to-ceiling height matching challenges)
Our period property approach:
- Respect original proportions and materials
- Match brickwork using reclaimed materials where possible
- Maintain roof pitches and materials consistent with originals
- Design extensions are clearly subservient to the main building
- Preserve period features (original floors, walls where feasible)
Classic Rear Extensions
Most popular kitchen extension type for Victorian terraces:
Single-Storey Rear Extensions: Extend 3-6 meters into the garden, creating enlarged kitchen-dining spaces. Typical sizes 20-35m², additional space. Flat roofs with rooflights or pitched roofs matching the original building.
Design options:
- Full-width extensions (maximising space)
- Offset extensions (preserving garden access)
- Wrap-around extensions (including side return if available)
Typical features:
- Bifold doors (3-5 panels opening to the garden)
- Rooflights (Velux or flat rooflights for natural light)
- Underfloor heating (comfortable, space-efficient)
- Open-plan layout (kitchen, dining, living combined)
Cost: £45,000-£85,000 (depending on size and specification)
Timeline: Planning 8-12 weeks, construction 10-14 weeks
Explore: Home Extensions Central London
Side Return Extensions
Perfect for Victorian terraces with side passages:
Infilling Side Returns: Victorian terraces typically have 1-1.5m wide side passages (side returns). Infilling creates significantly wider kitchens without extending into gardens. Transforms narrow galley kitchens into spacious 4-5m wide rooms.
Benefits:
- Maximum space gain for footprint
- Often permitted development (no planning required if criteria met)
- Doesn’t reduce garden size
- Natural light from side windows is possible
Typical features:
- Wraparound worktops (utilising full width)
- Island units (space for the central island)
- Dining areas (room for tables within the kitchen)
- Utility zones (separate areas for washing machines, storage)
Cost: £35,000-£65,000
Timeline: 8-12 weeks construction (if permitted development)
Kitchen Extension Refurbishment Ideas
Refurbishing kitchen extensions built decades ago:
Common 1980s-1990s Extensions: Many Central London Victorian properties have poorly designed 1980s-1990s kitchen extensions, flat roofs leaking, cheap materials deteriorating, layouts inefficient, single-glazed conservatories unusable.
Our refurbishment approach:
- Rebuild roof structures (proper insulation, rooflights, weather protection)
- Replace bifold/sliding doors (modern double/triple glazing)
- Reconfigure layouts (better workflow, more storage)
- Update electrical (modern lighting, power points, NICEIC)
- Install underfloor heating (replacing inadequate radiators—Gas Safe)
- Complete kitchen installation (new units, appliances, worktops)
Benefits of refurbishing vs. new:
- Often permitted development (external envelope unchanged)
- Lower cost (structure exists, focus on finishes)
- Faster completion (8-10 weeks vs. 12-16 weeks new)
- Addresses problems (leaks, poor insulation, inadequate heating)
Cost: £30,000-£55,000 (depending on extent)
Timeline: 6-10 weeks
Chelsea example: 1985 kitchen extension, flat roof leaking, poor insulation, unusable in winter. We rebuilt the roof with proper insulation and rooflights, installed underfloor heating throughout, replaced single-glazed doors with modern bifolds, and completely refitted the kitchen. Result: beautiful year-round space, energy bills decreased 35%, the family use the extension daily now.
Open-Plan Kitchen Extension Process
Stage 1: Design & Planning
Initial Consultation (Free):
- Site visit and property assessment
- Discuss your open-plan kitchen vision and requirements
- Review existing layouts and identify opportunities
- Preliminary design sketches and feasibility
- Budget guidance and realistic timelines
Planning Application:
- Prepare architectural drawings (in-house or architect partnerships)
- Submit a planning application to the local authority
- Liaise with planning officers throughout the process
- Respond to neighbour consultations
- Secure planning permission approval
Timeline: 8-12 weeks for planning decision
Stage 2: Pre-Construction
Building Control:
- Submit a building control notice before work starts
- Agree inspection schedule
- Ensure structural calculations are completed (if required)
- Coordinate party wall agreements (if affecting neighbours)
Final Design:
- Kitchen design finalised (units, appliances, worktops)
- Electrical layout confirmed (lighting, sockets, appliances, NICEIC)
- Plumbing design (sinks, dishwashers, gas hobsGas Safe)
- Heating design (underfloor heating zones, controls)
- Materials selection (flooring, tiles, finishes)
Stage 3: Construction
Weeks 1-2 (Groundworks & Structure):
- Strip out the existing kitchen and structures
- Excavate foundations (typically 1-1.2m deep)
- Pour concrete foundations and floor slabs
- Build blockwork walls to the roof level
- Install a damp-proof course and insulation
Weeks 3-5 (Roof & First Fix):
- Install roof structure (flat roof or pitched)
- Fit rooflights or roof windows
- Install bifold or sliding doors
- Electrical first fix (cables, circuits NICEIC)
- Plumbing first fix (pipes, drains Gas Safe)
- Underfloor heating installation (Gas Safe)
Weeks 6-8 (Second Fix & Finishing):
- Plaster walls and ceilings throughout
- Install flooring (tiles, engineered wood, concrete)
- Electrical second fix (sockets, lights NICEIC)
- Plumbing second fix (taps, appliances Gas Safe)
- Kitchen installation (units, worktops, appliances)
- Painting and final decoration
Weeks 9-10 (Testing & Completion):
- Building control final inspection
- NICEIC electrical testing and certification
- Gas Safe testing and certification
- Professional cleaning
- Final walkthrough and handover
Throughout construction:
- Daily site access (typically 8 am-6 pm weekdays)
- Weekly progress updates from the family project manager
- Site kept clean with dust barriers
- Secure lockup evenings and weekends
Stage 4: Kitchen Installation
Complete kitchen coordination:
- Kitchen units fitted by experienced installers
- Worktops templated and fitted (granite, quartz, composite)
- Appliances installed and commissioned (Gas Safe for gas hobs)
- Electrical connections completed (NICEIC-certified)
- Plumbing connections (sinks, dishwashers, washing machines, Gas Safe)
- Final adjustments and quality checks
Kitchen Extension Timeline
Complete project timeline:
Planning Phase: 8-12 weeks
- Design development: 2-3 weeks
- Planning application submission to decision: 8-12 weeks
- Listed building consent (if required): 12-16 weeks
Construction Phase: 10-14 weeks
- Groundworks and structure: 3-4 weeks
- Roof and first fix: 2-3 weeks
- Second fix and finishing: 3-4 weeks
- Kitchen installation: 1-2 weeks
- Testing and completion: 1 week
Total Timeline: 18-26 weeks (4.5-6.5 months)
Factors Affecting Timeline:
- Planning approval speed (local authority workload)
- Weather (winter ground conditions, heavy rain)
- Material lead times (bespoke items, special orders)
- Building control inspection scheduling
- Kitchen unit delivery (standard vs. bespoke)
1. Free Consultation & Survey
Contact us for a free, no-obligation site visit. We discuss your requirements, inspect the property, and provide expert guidance on feasibility, planning requirements, and realistic costs.
2. Detailed Quotation
Within 3-5 working days, receive a comprehensive written quotation including a complete work breakdown, materials specifications, timeline estimate, and fixed pricing.
3. Planning & Approvals
We handle planning permission applications, building control notifications, party wall agreements, and structural engineering coordination.
4. Construction Delivery
Our family coordinates all work building, electrical (NICEIC), plumbing (Gas Safe), decoration, and finishing. Daily updates, weekly progress meetings, clean and tidy site.
5. Certification & Handover
Complete building control inspection, NICEIC electrical certification, Gas Safe plumbing certificates, structural warranties, manufacturer warranties, and 12-month workmanship guarantee.
Get Expert Builders Central London Today
Ready for expert building services from our two-generation family business? We provide complete construction services across Central London, including extensions, Kitchen extensions, lofts, renovations, and emergency repairs.
Contact Chelsea Property Renovation & Maintenance Ltd:
Office Hours: Monday-Friday 8 am-6 pm | Saturday 9 am-2 pm
Emergency Line: 24/7/365
What Our Chelsea Clients Say About Our Renovation Services
Read testimonials from satisfied homeowners across Chelsea, Knightsbridge, and Belgravia who trust us with their property renovation and maintenance needs.
“We hired Chelsea Property Renovation & Maintenance for a complete loft conversion in our Chelsea SW3 home. The team was professional, punctual, and the quality of work exceeded our expectations. They handled all planning permission and kept us informed throughout the entire renovation process. Our new loft space has added significant value to our property. Highly recommend their loft conversion services!”
Sarah & James Mitchell
Chelsea, SW3 • Loft Conversion Project Value: £65,000
“As a landlord with multiple properties in Knightsbridge, I needed a reliable property maintenance company. Chelsea Property Renovation & Maintenance has been exceptional. Their monthly maintenance contract gives me complete peace of mind. They handle everything from emergency repairs to routine inspections. Responsive, professional, and always deliver quality work. Best property maintenance service in SW London!”
David Thompson
Knightsbridge, SW1X • Maintenance Contract Gold Package Client Since 2024
“Our Victorian property in Belgravia needed a complete kitchen and bathroom renovation. Chelsea Property Renovation & Maintenance understood the importance of preserving period features while modernising the spaces. Their attention to detail was remarkable. The project finished on time and within budget. The team was respectful of our home and cleaned up thoroughly each day. Outstanding renovation company wouldn’t use anyone else!”
Emma Richardson
Belgravia, SW1W • Kitchen & Bathroom Renovation Project Value: £45,000
25+ Years Central London Experience
We’ve completed home renovations in Central London since 2000. Over 150 projects across Chelsea, Belgravia, Kensington, Knightsbridge, Marylebone, Bloomsbury, Fitzrovia, and Westminster.
Fully Insured & Guaranteed
£10M public liability insurance, £10M employers' liability insurance, and professional indemnity coverage. All work is fully guaranteed. Building control certificates provided. Electrical and Gas Safe certificates where applicable. Written guarantees on all home renovation services Central London. Insurance certificates available on request.
Quality Materials & Expert Craftsmanship
We specify and source high-quality materials from established manufacturers ensuring reliability and longevity.
Conservation Area Specialists
95% planning approval rate in Central London conservation areas. We've successfully renovated listed buildings and strict conservation properties across Westminster and Kensington & Chelsea. We know what conservation officers want to see before we submit applications.
200+ Satisfied Customers
Proven track record across Central London with hundreds of completed renovations. Our reputation built on exceptional project management, quality workmanship, transparent pricing, and beautiful results that exceed expectations.
Meet Our Trusted Team
John Michaels
Renovation Consultant
Dan Wright
Plumbing and Heating Engineer
Glenn Knowles
CEO
Harry Collins
Repair Technician
Get Your Fast Quote for Central London Home Renovation
Ready to transform your Central London property? Get your fast quote today. Contact Chelsea Property Renovation & Maintenance Ltd
How much does a kitchen extension cost in Central London?
Kitchen extensions cost £45,000-£150,000+, depending on size and specification. Small 3-4m extensions £45k-£100k, medium 4-5m £55k-£120k, large 5-6m £70k-£150k+. Side returns £35k-£85k. Includes structure, electrical (NICEIC), plumbing (Gas Safe), and basic kitchen fitting. Free quote: 020 7129 7353.
Do I need planning permission for a kitchen extension?
Most rear extensions require planning permission in conservation areas (common across Central London). Some smaller extensions or side returns may be permitted development. We assess your property and handle all planning applications. We’ve secured 400+ kitchen extension approvals across RBKC and Westminster. Free consultation: 020 7129 7353.
How long does a kitchen extension take to build?
Construction typically takes 10-14 weeks, depending on size and complexity. Planning permission adds 8-12 weeks before construction starts. Total project timeline 18-26 weeks (4.5-6.5 months). We provide detailed schedules with every quotation showing week-by-week progress. Call 020 7129 7353 to discuss your timeline.
Can you extend Victorian and Georgian properties?
Yes, we specialise in Victorian and Georgian kitchen extensions. We understand period construction, match original materials (reclaimed bricks), respect proportions, and secure conservation area approvals. 400+ successful planning permissions for period properties. Our designs enhance rather than compromise original architecture. Free consultation: 020 7129 7353.
What size kitchen extension can I build?
Depends on the property, garden size, and planning restrictions. Victorian terraces typically suit 3-6m rear extensions, creating 20-35m² additional space. Side returns add 10-18m². Conservation areas restrict sizes. We assess your property and advise maximum feasible extension securing planning approval. Free site visit: 020 7129 7353.
Do you handle all trades for kitchen extensions?
Yes, our family provides complete in-house services: builder cousins (construction), NICEIC daughters (electrical), Gas Safe sons (plumbing, heating, gas appliances), parents (coordination). No subcontractors. Single-family accountability ensures quality, faster completion, and clear communication. Complete project management from planning through certification.
Will my kitchen extension add value to my property?
Well-executed open-plan kitchen extensions typically add 10-20% property value in Central London. A £60,000-£90,000 investment often returns £80,000-£150,000+ value increase. Beyond investment returns, extensions transform how families live. The lifestyle benefit is immeasurable. Excellent investment and quality-of-life improvement combined.
Can I see examples of your kitchen extensions?
Yes, we have an extensive portfolio of completed kitchen extensions across Chelsea, Kensington, Westminster, Knightsbridge, and Belgravia. Victorian terraces, Georgian townhouses, mansion blocks. Conservation area and listed building examples. Before/after photos, client testimonials, and planning approval examples. Free consultation with portfolio review: 020 7129 7353.
What areas do you serve?
City of Westminster, City of London, Royal Borough of Kensington & Chelsea, Camden (Central Parts), Islington, Hackney (Western/Central Parts), Tower Hamlets (Western Parts), Southwark (Northern Parts), Lambeth (Northern Parts), Hammersmith & Fulham, Wandsworth (Northern Parts), Greenwich (Western Parts), Lewisham (Northern Parts), Haringey (Southern Parts) and Brent (Southern Parts)
Central London
Your local team for fast, reliable electrical service throughout Central London.
Address:
289 Brompton Road, Knightsbridge, London, SW3 2DY
Phone number:
020 7129 7418
Areas We Serve:
- Belgravia
- Pimlico
- Mayfair
- Marylebone
- Victoria
- Paddington
- Hammersmith & Fulham
- ower Hamlets
- Lambeth
- Plus Hackney
- Chelsea
- South Kensington
- Knightsbridge
- Notting Hill
- Earl's Court
- Camden Town
- Barbican
- Bank
- Liverpool Street
- Moorgate
- King's Cross
- Primrose Hill
- Hampstead
- Kentish Town
- Angel
- Barnsbury
- Canonbury
- Highbury
- Clerkenwell
- Southwark
We Are Accredited
All our tradesmen, plumbers, heating engineers, electricians, and builders are fully accredited by leading industry bodies, ensuring the highest standards of quality and professionalism on every job.
