London’s Home
Extension Experts
Expand your home with a bespoke extension designed around your lifestyle and add significant
value to your property
Fast & Free Home Extension Estimates
We'll be in touch shortly to discuss your
requirements and prepare your brief.
Types of House Extensions
Whether you’re looking to add a spacious kitchen-diner, an extra bedroom, a home office, or a sun-filled living space, our expert team designs and builds extensions to suit your needs perfectly. From initial planning and architectural design to construction and finishing touches, we provide a seamless service that ensures your project runs smoothly from start to finish.
It all starts with a free quotation. We will quickly fix a date, visit your location, measure your property and share your estimations within a day.
Rear & Side Return
Extensions
Single & Double-Storey
Extensions
Over-Structure & Garage Extensions
Conservatories &
Orangeries
Basement & Glass
Box
Wrap-Around
Extensions
The Trusted Name for Stylish Extensions
Searching for the best extension builders near you? At LINX Design & Build, we’ve been delivering bespoke home extensions in London for over 35 years. Whether you need a rear, side return, wrap-around, or multi-storey project, our expert team ensures your extension is stylish, practical, and built to last.
Searching for the best extension builders near you? At LINX Design & Build, we’ve been delivering bespoke home extensions in London for over 35 years. Whether you need a rear, side return, wrap-around, or multi-storey project, our expert team ensures your extension is stylish, practical, and built to last.
35+ Years of
Home Extension Expertise
Bespoke Designs Tailored to Your Lifestyle
Fully Insured & Guaranteed Workmanship
Local Knowledge of London Homes & Planning
Competitive Pricing
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Clean, Safe & On-Time Deliver
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Why Choose LINX Design & Build
Experience,Craftsmanship
& Service You Can Trust
With over 35 years of expertise, LINX Design & Build has delivered hundreds of successful home extensions across London. Our team combines skilled craftsmanship, transparent pricing, and a customer-first approach to ensure your extension adds lasting value and comfort to your home.
Authorized Suppliers
Our Trusted Partners
Our Works
Our Remarkable Portfolio
OUR PROCESS
We follow a clear, structured approach to deliver your extension with precision and quality at every stage.
Consultation
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Your head project manager meets with you for a free consultation to understand what you want and assess your property
Planning
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Once we agree the project scope and fees, we begin planning — including cost breakdowns and initial logistics.
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Drawings & Regulation
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We produce detailed architectural drawings and make sure everything complies with building regulations.
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Construction
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With approvals in place, our skilled team starts the build. We manage timelines and work carefully to keep disruption minimal.
Finishing
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We bring in specialist trades and finish the project to the highest standards — leaving your new space polished and ready to use.
HAVE A QUESTION?
Frequently Asked Questions
Question 1: What types of home extensions do you offer?
We provide single-storey, double-storey, side return, rear, and wraparound extensions, as well as orangeries and sunrooms.
Question 2: Do I need planning permission for my extension?
In many cases, extensions fall under permitted development, but this depends on size and location. We handle all planning applications if required.
Question 3: How long will my extension take to complete?
Timelines vary by project, but we’ll provide a clear schedule before starting and keep you updated throughout.
Question 4: Can you match the style of my existing home?
Yes, we can seamlessly blend new builds with your current property style or create a striking contrast if preferred.
Question 5: Do you manage the entire project?
Absolutely. From design and planning to construction and finishing, we take care of the whole process. Can you match the style of my existing home?
Question 6: Will the work disrupt my daily life?
We plan carefully to minimise disruption, maintain a tidy site, and work efficiently to complete your project as quickly as possible.
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