House Extensions in London
About our services
Create More Room, Add More Value With Expert Builders You Can Trust
Outgrown your home but love where you live? A bespoke house extension is the perfect way to gain extra space without the hassle of moving. At Sunny Build, we specialise in high-quality house extensions across London, giving homeowners more room to grow while increasing property value and comfort.
We’re a family-run team of experienced builders offering a full-package extension service—from the groundworks to the final joinery. We handle every part of the build ensuring smooth project delivery and results that last.
what we do
Types of Home Extensions We Build
Whether you’re planning a rear extension, a side return, or a double-storey build, we tailor every extension to fit your home’s structure and your lifestyle needs.
1
Rear House Extensions
Great for creating open-plan kitchen-diners or family living areas
2
Side Return Extensions
Ideal for terraced homes needing more width and light
3
Wraparound Extensions
Combine rear and side returns for maximum space
4
Double-Storey Extensions
Add bedrooms, bathrooms, or studies upstairs as well as more space below
Not sure what’s possible? We’ll guide you through planning, design, and build.
What’s Included in Our House Extension Service?
We offer a comprehensive, start-to-finish service so you don’t have to juggle multiple contractors:
- Initial consultation and advice
- Groundworks and foundations
- Structural steelwork and walls
- Electrics and plumbing
- Plastering, tiling and flooring
- Bespoke joinery (e.g. doors, storage, finishing touches)
Why Choose Sunny Build for Your House Extension?
- All-Inclusive Build – One team to manage it all, making your project as stress-free as possible
- High-Quality Workmanship – No shortcuts, no rushed finishes—just quality that lasts
- Client Communication – We keep you in the loop every step of the way, with no hidden costs
- Residential Experts – We work only with homeowners who care about getting it done properly
Designed Around Your Life
Whether you need space for a growing family, a new kitchen-diner, or simply want to make your home more functional, we’ll help you bring your vision to life—with minimal disruption and maximum quality.
Contact Sunny Build today for a free, no-obligation quote on your house extension in London.
Your dream home might be closer than you think.