Residential Architecture

Kitchen Extensions Transform your kitchen into the heart of your home

Kitchen Extension London Specialists & New Builds

500+Projects Completed
15+Years Experience
32London Boroughs
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Why a Kitchen Extension?

The smartest way to reimagine your kitchen

A kitchen extension in London is a building project that increases the size of your existing kitchen by extending the footprint of your home, most commonly to the rear of the property, or into a side return where space allows. It is designed to improve how the kitchen works day to day by creating mo

In many homes, especially terraced and semi detached properties, the existing kitchen in London can feel narrow, enclosed or disconnected from the garden. A well designed kitchen extension enables you to reconfigure the space to suit modern living, often creating a larger kitchen dining area with im

15-20%
Average Property Value Increase
10-14 wks
Typical Build Time
Open-Plan Kitchen Living
Create a spacious kitchen-diner that becomes the heart of your home, designed around how you cook and entertain.
Natural Light
Large glazing panels and skylights flood your new kitchen with daylight, transforming the feel of the entire ground floor.
Design to Completion
We manage every stage in-house, from architectural drawings and planning through to structural engineering and construction.
Fixed-Price Construction
Once designs are approved, you receive a genuine fixed build cost. No surprises, no inflated estimates.
What We Do

Our Role in Your Project

From initial survey through to detailed construction drawings, we provide complete architectural support.

Measured Surveys
Accurate on-site surveys of your existing property
Concept Design
Multiple layout options tailored to your brief
Planning Applications
Full submissions where required by your council
Building Regulations
Detailed technical drawings for Building Control
Structural Liaison
Coordination with structural engineers and consultants
Party Wall Advice
Guidance on party wall obligations and agreements

Choose a full design-and-build package or select specific stages depending on your project. Speak to our team

What is a kitchen extension in London? - Salstan Architecture
Salstan Architecture Project
Understanding Kitchen Extensions

What is a kitchen extension in London?

A kitchen extension in London is a building project that increases the size of your existing kitchen by extending the footprint of your home, most commonly to the rear of the property, or into a side return where space allows. It is designed to improve how the kitchen works day to day by creating more usable floor area for cooking, dining, storage and circulation, and by allowing a more efficient layout than the original room often provides.

In many homes, especially terraced and semi detached properties, the existing kitchen in London can feel narrow, enclosed or disconnected from the garden. A well designed kitchen extension enables you to reconfigure the space to suit modern living, often creating a larger kitchen dining area with improved natural light and a stronger relationship to the rest of the ground floor. When planned properly, a kitchen extension can feel like a natural continuation of the home, balancing practicality, comfort and long term value.

Our Work

Kitchen Extension projects in London

Kitchen Extension in Chiswick, London
Chiswick, London
Kitchen Extension
Kitchen Extension in Wimbledon, London
Wimbledon, London
Kitchen Extension
Kitchen Extension in Thames Ditton, London
Thames Ditton, London
Kitchen Extension
Kitchen Extension in Wandsworth, London
Wandsworth, London
Kitchen Extension
Benefits

Why choose a kitchen extension in London?

A well designed kitchen extension in London can transform how your home looks and functions, while adding long term value. Key benefits include:

More space for modern livingCreate a larger kitchen extension in London, kitchen diner, or open plan layout with improved storage,worktop space and everyday usability.

Increased natural lightA kitchen extension can significantly brighten the space through larger glazing andwell positioned rooflights.

  • Increase usable living space in your home
  • Enhance natural light and improve layout
  • Add strong market appeal and resale value
  • Professional design meeting all regulations
Why choose a kitchen extension in London? - Salstan

Our focus is always on delivering kitchen extension design that works beautifully in everyday life, not just on drawings.

How we design kitchen extensions at Salstan Architecture - Salstan Architecture
Our Approach

How we design kitchen extensions at Salstan Architecture

At Salstan Architecture, our approach to kitchen extensions is centred on creating a space that feels natural to your home, works effortlessly day to day, and is properly resolved for planning and construction. We start by understanding how you live now, what is not working in the existing kitchen, and what you want the extended space to achieve, whether that is an open plan kitchen diner, a better connection to the garden, more storage, or improved flowthrough the ground floor.

We then develop a design that balances practicality and aesthetics, with careful consideration of natural light, layout efficiency, proportions, and materials. For terraced and semi detached homes, we pay particular attention to side return opportunities, neighbour relationships, privacy, and how the extension sits within the character of the property. Every kitchen extension design is progressed with buildability in mind, including coordinated drawings and clear technical detailing, so the project can move smoothly from design to site.

Where required, we guide you through planning permission and approvals, and we keep the process straightforward, responsive, and well managed from the early concept stage through a build ready package. The result is a kitchen extension that is not only visually strong, but genuinely improves how your home feels and functions.

Natural Light Priority
Proportional Design
Material Integration
Quality Controlled
How It Works

Our process explained in six easy steps

01
Your 3D Site Survey
An appointed surveyor visits for a full measured survey of your property. They will also note down all your desired requirements for the proposal.
02
Drawings Initiated
The project is allocated to one of our architectural designers who will design your project from the ground up, taking into account all your needs.
03
You Review It
Your first draft is typically ready in 7 working days, and within 10 unless agreed otherwise. Review the designs, send feedback, and we wrap up your drawing ready for submission.
04
Submission and Decision
Your plans are submitted strategically for swift approval by the council. Expect a decision in 6 to 8 weeks. We handle any required changes for free.
05
Technical Design
Once plans are approved, our engineers manage detailed design and regulatory compliance. Get construction quotes from us and compare with others.
06
Construction
If you move forward with our construction services, we arrange a detailed consultation to finalise your specific requirements, ensuring everything aligns with your vision.
Client Reviews

What our clients say about us

TRANSPARENT PRICING

Kitchen Extension Plan Pricing

Fixed-fee packages so you know exactly what you are paying before we begin.

Building Regulations
From £500 + VAT
Starting price, confirmed on review
  • Full building regulation drawings
  • Technical specifications
  • Expert building control advice
  • Combined with structural package
Get a Quote
Structural Design
From £500 + VAT
Starting price, confirmed on review
  • Full structural calculations
  • Structural design drawings
  • By chartered structural engineers
  • Price varies by complexity
Get a Quote

All prices exclude VAT. Conservation area or listed building reports quoted separately. View full pricing details

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Common Questions

Frequently Asked Questions

For a typical 30 m² kitchen extension, that usually means a total budget in the region of £50,000 to £95,000, depending on specification, structural complexity, and finishes. For larger or more complex kitchen extension projects, budgets can rise to £150,000 to £200,000+.

Not always. Some kitchen extensions can be built under Permitted Development if they stay within the relevant size, height and location limits, and the property has Permitted Development rights.
For a typical single storey kitchen extension, the construction phase is often in the region of 10 to 14 weeks, depending on complexity, access, specification, and how much internal reconfiguration is included. If you include design, approvals and prestart preparation, the overall timeline is usually longer.
Yes. We provide a complete design and build service delivered by our in house team, with civil engineering and project management integrated into the process. This creates a smoother route from concept and planning through to a build ready package and high quality on site delivery.
All you need to do is contact us by either filling out the form on our website, calling us on our number.
Trusted Partners

Who We Work With

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