KITCHEN EXTENSIONS
We specialise in a wide variety of bespoke extension projects; designed to expand your space and built around your desired interaction with it. Our services will ensure to cover clients illuminating aspirations, requirements and patterns of habitation.
HOUSE EXTENSION COMPANY LONDON
Design & Build LONDON are London’s leading house, kitchen extension, side infill, rear and wrap around extensions specialist builders. We successfully completed bespoke home extension projects to achieve extra space and breathe new life in to your home in London; Our thorough tailor-made service combines planning, design stage through full completion.
We will help you PLAN, DESIGN and DELIVER your house extensions project!
WHAT WE DO
Capturing your vision
We apply innovative architectural solutions to building projects to develop a concept design, sketching layout options to explore the potential of the property. We are prepared to spend as long as you require on this process, to ensure that all issues and alternatives are considered.
Bringing your ideas to life
Our creative designers will begin producing concept designs and sketches. This is a collaborative process where we work closely with you to develop ideas into a final set of plans for the build phase. You can also hand-pick materials, fixtures and fittings with guidance from our experts.
Construction and sign-off
You can look forward to the final result as the build teams begin construction under the orchestration of your personal Project Manager. The detailed program will ensure that the right people, tools and materials will be on-site at the right times for a seamless build.
House Extension Company London
The London Builders are London’s leading house, kitchen extension, side infill, rear and wrap around extensions builders. We successfully completed bespoke home extension projects to achieve extra space and breathe new life in to your home in London; Our thorough tailor-made service combines planning, design stage through full completion.
We will help you PLAN, DESIGN and DELIVER your house extensions project!
- Side Extensions
- Rear Extensions
- Side Infill Extensions
- Double Storey Extensions
- Kitchen Extensions
Get in touch
Please get in touch to discuss your requirements, by phone during office hours, or via email (address below) or our contact form.
Why us
ALL OUR PROJECTS REQUIRE QUALITY FINISHES
By mastering best practices and applying them on every commercial and residential project regardless of the budget or size, we can ensure lasting quality. We believe luxury is about having standards and not cutting corners.
Our uncompromising aim is to deliver the highest quality projects on brief, on time and within budget. We treat every job as a luxury project, with the same approach and same team of experienced, trained specialists working across our sites.
BRIEF – We Begin by asking our clients to imagine their lives in the completed house and to describe their desired interaction with it. We then analyse these descriptions in detail to give us a highly defined brief. This brief is then converted into a 3-dimensional simulation which is both revealing and informative, illuminating aspirations, requirements and patterns of habitation.
FORM – From this base, the formal expression emerges, facilitating the requirements of each client’s unique brief. The resulting spaces are easily read as a resolution of the challenges presented by brief and context.
This methodical process strips the design of style and preconceptions, resulting in a completely bespoke and personal design.
MATERIAL – Only once the form and spatial qualities of the design are clarified, we ask: Which materials lend themselves effectively and sustainably to the realisation of the design?
We believe that architecture should provide the backdrop for life and not take centre stage. Life itself is in full colour, so materials are used in their honest, natural state.
DESIGN & BUILD HOUSE EXTENSION COMPANY
We are Design & Build home and kitchen extension company in London specialising in Rear, Side Return, Wrap Around extensions. Our thorough tailor-made service combines planning, design stage through full completion.
Kitchen and house extension company
The London Builders is London’s leading house, kitchen and side return extension company. We design, manage and build a wide variety of bespoke extension projects; we offer services to extend your living space, with maybe a bigger kitchen, an extra bedroom, or simply a renovation to create more living space for your growing family. Whether it is with a rear home extension or a wrap-around kitchen extension, we will maximise the space in your home.
The London Builders team can provide you with the extension in London that you desire, Our industry leading experience in quality builds is recognised throughout South West and Central London. Our in-house architectural designers and builders can not only enhance the beauty of your existing home – a quality rear extension will also add value to your property.
A home extension project within your budget will meet your need for extra living space, as well as enhancing the appearance of your home. Our home remodelling experts at Design & Build London are able to deliver a seamless transition from your property in London as it currently is, to the larger and more spacious home that you desire – and all within the contracted time frame, working with you throughout the process.
We would be happy to provide you with a free estimate, and then get started on your house extension – we are ready when you are!
Share your ideas with us, and we can make them become a reality.
A truly personal experience
Most architects and other companies which claim to be ‘design & build’ do not have the necessary in-house knowledge to accurately estimate the cost of a project until the initial design is complete. Usually, these companies rely on third party contractors to provide quotations which can result in budget creep, design amendments and delays. Our design & build process has been refined to deliver projects extremely efficiently with award winning results. Please feel free to contact us if you have a project in mind which you would like to discuss.
A truly personal experience
Our services designed to expand your space and built around your desired interaction with it. We will ensure to cover your aspirations, requirements and patterns of habitation.
Design Considerations
Roof Form
Flat? Pitched? Or a combination of both




Design Considerations
Windows Types
Openable? Fixed? Sliding or folding?






The Process
1.
Free, no-obligation site visit
This is the opportunity for us to get to know you, and to form a picture of your precise requirements. It is also the time for you to get answers to any questions you might have.
2.
Feasibility assessment
The next step will be for us to make a closer analysis of your proposed project. Our assessment will be informed with photographs and detailed measurements. We will also carefully consider any legal issues that might be involved, and, importantly, we will assess whether your proposed budget is realistic for the envisaged work.
3.
Concept Design
Our design team will turn your ideas and aspirations into an outstanding concept design, which meets all functional requirements, at a price you can afford.
4.
Planning drawings & consents
We will assess the Planning Permission requirements of your proposed project. If any permissions are required, then there is no need for you to worry, as we can take care of this aspect of the process on your behalf. We are confident of obtaining the necessary consent, given our record of having achieved acceptance of Planning Permission on the first application on 97% of occasions.
5.
Building regulations & engineering
As part of our service, we will make sure that all aspects of the build comply with all current Building Regulations. As with any required planning consent, we can manage the process of obtaining any necessary approvals from Building Control.
6.
Construction plans & specifications
Our building team works with complete precision, following construction plans to the last millimetre, and providing the fixtures & fittings and finishes that exactly match your expectations.
Delivering High-Quality Projects on Brief, On Time and Within Budget.
We offer a wide range of build and refurbishment services and enjoy working on different project types and sizes. We construct new buildings, alter, refurbish, and remodel existing buildings, undertake basement excavations, loft conversions, and extensions and transform interior spaces.
We guide you through each step of your project from design to completion, allowing you to be involved as much or as little as you want.
We guide you through each step of your project from design to completion, allowing you to be involved as much or as little as you want.
Net Promoter
93%
A standardised measurement of customer loyalty and the likelihood of a recommendation.
Client Retention
95%
of clients continue to use us for future construction or architecture projects.
Referrals
80%
of our work comes from word-of mouth recommendations alone.
HOW MUCH DOES AN EXTENSION COST?
Small Side Return Extension
Roof Form: Flat Roof
ESTIMATED COST: £55000
Small 3m x 3m Rear Extension
Roof Form: Flat Roof
ESTIMATED COST: £55000
Small Side Return Extension
Roof Form: Pitched Roof
ESTIMATED COST: £60000
Medium Rear Extension
Roof Form: Flat Roof
ESTIMATED COST: £70000
Medium Side Return Extension
Roof Form: Pitched Roof
ESTIMATED COST: £75000
Medium Side Return Extension
Roof Form: Flat Roof
ESTIMATED COST: £70000
Large Rear Extension
Roof Form: Pitched
ESTIMATED COST: £75000
Large Side Return Extension
Roof Form: Pitched
ESTIMATED COST: £85000
Large Side Return Extension
Roof Form: Flat
ESTIMATED COST: £85000
Small Wrap Around Extension
Roof Form: Pitched, Flat, Gable, Crown
ESTIMATED COST: £80000
Large Wrap Around Extension
Roof Form: Pitched, Flat, Gable, Crown
ESTIMATED COST: £105000
Medium Wrap Around Extension
Roof Form: Pitched, Flat, Gable, Crown
ESTIMATED COST: £95000
Net Promoter
93%
A standardised measurement of customer loyalty and the likelihood of a recommendation.
Client Retention
95%
of clients continue to use us for future construction or architecture projects.
Referrals
80%
of our work comes from word-of mouth recommendations alone.
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INSURANCES & WARRANTIES
Master Cover Insurance
Employers Liability Insurance
Public Liability Insurance
Customer Protection
10 Year Warranty
OUR SERVICES
Refurbishments
Loft Conversions
Bathroom Renovation
Kitchen Renovation
House Extensions
Joinery & Carpentry
CONTACT
THE LONDON BUILDERS
Hurlingham Studios,
Fulham,
SW6 3PA
The London Builders
Hurlingham Studios,
Ranelagh Gardens,
SW6 3PA