Cultural heritage is finding new life in contemporary designs. By incorporating traditional patterns, local craftsmanship, and indigenous materials into modern structures.
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Introduction
Grand Build London house extension services. We design and build quality extensions that complement your existing home, seamlessly adding space, style, and value. From single-storey rear extensions and two-storey side extensions to loft conversions, our experienced team will guide you through a seamless, stress-free process from start to finish.
We oversee every detail of your extension project, including planning, design, structure, electrics, plumbing, finishes, and UK building regulations. With Grand Build, your house extension will be built to last, to a high standard, and designed to optimise comfort and functionality for your London home.
Why House Extensions?
- Increase living space without the need to move
- Add value and appeal to your London property
- Modernise layouts, create open-plan spaces, or add functional rooms
- Improve natural lighting, ventilation, and overall home comfort
- Ensure compliant and safe structural work for lasting results
WHAT WE DOWHAT WE DOWHAT WE DO
House Extension Solutions We Offer
Our team has extensive experience with all major types of house extensions in London, including:
Full guidance on planning permission, building regulations, structural surveys, and engineering requirements.
Bring natural light and elegance into your home with bespoke orangeries and sunrooms designed for comfort and style.
Convert existing garages into functional spaces such as home offices, gyms, or guest rooms.
Transform unused attic space into bedrooms, offices, or recreational areas with expert design and construction.
Add significant space while maintaining style and flow, ideal for growing families or multi-functional rooms.
Create extra living space at the back of your home with a single-storey extension tailored to your needs and lifestyle.
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London's Best House Extension CompanyLondon's Best House Extension CompanyLondon's Best House Extension Company
What’s Included In A Grand Build House Extension?
Our house extension service covers the complete process, ensuring your project runs smoothly and delivers exceptional results.
Our House Extension Process
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LONDON’S TRUSTED BUILDERSLONDON’S TRUSTED BUILDERSLONDON’S TRUSTED BUILDERS
ABOUT GRAND BUILD
At Grand Build, we take pride in delivering exceptional construction and renovation services across London. With a focus on quality, honesty, and seamless execution, we manage every project with precision — ensuring your home is built beautifully and built to last.
Trusted TeamTrusted TeamTrusted Team
Our Expert Team
Ethan Clarke
Vision Creator
Sophia Grant
Structure Specialist
Adrian Wells
Space Stylist
Marcus Lane
Nature Designer
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our Excellent efforts
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What Clients Are Saying
I hired Grand Build for a full house renovation and the results are incredible. Every room feels brand new, and the attention to detail is outstanding. The team handled everything smoothly—from planning and electrical work to finishing and décor. It genuinely feels like I’m living in a new home. Highly recommended!
Sam
Full House Renovation
Grand Build did an amazing job renovating my kitchen. They maximised the space beautifully and installed high-quality cabinets and worktops. The layout is so much more functional now. The team was friendly, efficient, and very skilled. I couldn’t be happier with the final result.
Daniel
Kitchen Renovation
I’m genuinely impressed with the bathroom renovation. The team handled everything from design to installation with so much professionalism. They kept me informed throughout the process and delivered exactly what I had envisioned — modern, clean, and beautifully finished. Highly recommended!
Rebecca
Bathroom Renovation
Grand Build converted my loft into a stunning new bedroom with an office corner. The workmanship is superb, and they managed the entire project seamlessly. The new space adds so much value to my home. Excellent service from start to finish!
Jones
Loft Conversion
My garden was completely transformed by Grand Build. They created a beautiful patio, added fresh landscaping, and improved the overall layout. Now it’s the perfect place for family gatherings. The team was creative, hardworking, and very polite. Brilliant work!
Emily
Garden Renovation
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Transparent Pricing, Lasting Value
We believe great design should come with clarity and trust. Our pricing is straightforward.
Commercial
Residential
Luxury retreat relaxation and unforgettable guest experiences.
- Basic 2D Layouts
- MEP Alignment
- Ambience Planning
- Landscape Design
Inspiring workspaces designed to boost productivity, creativity, and collaboration.
- Design Consultation
- 3D Renderings
- Concept Development
- Permit Assistance
Modern healthcare spaces prioritizing hygiene, efficiency, and patient well-being.
- Material Selection
- Mockup Services
- Walkthrough Animation
- Furniture Layout
Stylish urban living with comfort, convenience, and smart space design.
- Premium Materials
- Sustainable Design
- Contemporary Appliances
- High-Speed Elevators
Serene natural retreat blending rustic charm with modern living comfort.
- Smart Technology
- Wraparound Porch
- Natural Wood Accents
- Vaulted Ceilings
Spacious elegant homes offering privacy and timeless architectural beauty.
- Built-Ins Included
- Home Automation
- Cozy Window Seats
- Covered Veranda
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Ready to take control of your Finances
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We understand that house extensions can feel overwhelming. Here are some clear and helpful answers to the most common questions our London customers ask Grand Build before starting their extension project.
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