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Single-Storey and Two-Storey Extensions Built to Last

Adding a single-storey extension is a popular way to open up the back or side of your home, often creating a spacious kitchen-diner or family room. This is a fantastic option if you’re after more internal space without losing too much of your garden.

Two-storey extensions offer double the space, ideal for growing families needing more bedrooms, bathrooms, or open-plan living. Our builders are fully qualified to handle all construction, structural and finishing work, so you don’t have to deal with multiple contractors.

Side-Return and Rear House Extensions

Many of our clients in Sevenoaks, Tonbridge, and Tunbridge Wells opt for side-return extensions to better use narrow alleys or dead space. These designs allow you to expand your ground floor without dramatically altering the footprint of your home.

Rear house extensions are another great option for homeowners who want to extend into their garden. Whether you choose contemporary bi-fold doors or traditional brickwork, we ensure the extension complements your existing architecture perfectly.

The Benefits of Extending Your Home

Home extensions offer a wide range of benefits that go beyond simply adding square footage. Here’s why they’re a smart investment:

  • Increase your property’s market value
  • Avoid the cost and stress of moving
  • Adapt your home to your family’s changing needs
  • Add modern touches to older properties
  • Improve flow and layout with custom design
  • Futureproof your home with smart storage and energy efficiency

We work closely with clients to make sure each extension delivers maximum value and long-term comfort.

Design and Planning Support from the Start

We offer full design and planning support to help bring your ideas to life. From submitting drawings and securing planning permission to advising on materials and finishes, our team is with you every step of the way.

If your extension doesn’t require full planning permission, we’ll guide you through the permitted development rules and ensure your project complies with local building control requirements.

We also have excellent working relationships with structural engineers and architectural designers in the local area, so you’ll always be in capable hands.

Working with a Trusted Local Building Contractor

At Build-Pro Construction, we believe quality comes from experience and honest communication. As members of the Federation of Master Builders (FMB) and TrustMark accredited, we meet nationally recognised workmanship and customer care standards.

We provide detailed quotes, realistic timelines, and friendly service throughout. Our builders turn up on time, treat your home respectfully, and keep your project moving without unnecessary delays.

We’re proud to be a trusted name in Kent and offer site visits to previous jobs throughout Sevenoaks, Tonbridge, Tunbridge Wells, and the surrounding areas, so you can see our work in action before committing.

Our House Extension Services Include:

  • Single-storey, rear and side-return extensions
  • Two-storey and wraparound extensions
  • Full project management from start to finish
  • Groundworks, brickwork, roofing and glazing
  • Structural alterations and steel installation
  • Interior fit-out, plastering and decorating

How long does a house extension take to complete?

This depends on the size and complexity of the project. A single-storey extension may take 10–12 weeks, while a two-storey build can take several months. We provide a clear timeline at the start.

Do I need planning permission for my extension?

Some extensions fall under permitted development, while others require planning permission. We can advise on this during your consultation and handle applications if needed.

Will the new extension match my existing home?

Absolutely. We take great care to match materials and design elements so your extension blends seamlessly with your property.

Get in Touch for Your House Extension Quote

Ready to expand your home and make space for the future? Whether you’re planning a rear house extension, a two-storey addition, or a clever side-return project, Build-Pro Construction is here to help. We work across Sevenoaks, Tonbridge, Tunbridge Wells and beyond.

Call us today on 07899 926662 to book your free consultation and take the first step toward a bigger, better home.