Home Extensions London

Expertly Designed & Beautifully Built House Extensions Across London

Expand Your Living Space With A Bespoke Single Or Double-Storey Extension

A professionally built house extension can give you the additional space your family or business needs—without the stress and expense of moving. At N10 Contractors, we specialise in constructing high-quality single and double-storey extensions that seamlessly blend with your existing property while significantly increasing its footprint and value. With extensive experience across residential projects, our skilled team manages every stage of the build—from groundwork and structural works to finishing touches—ensuring your extension is completed on time and to the highest standards. We also undertake basement, garage, and loft conversions, transforming underused areas into practical, modern living spaces that maximise every square metre of your home.

Don’t Relocate—Renovate with N10 Contractors

N10 Contractors are highly experienced construction specialists, successfully delivering new builds, full refurbishments, rebuilds, and house extension projects across London. With years of hands-on industry expertise, we manage every stage of your project—from initial groundwork to final decorative finishes—ensuring a smooth, stress-free experience from start to completion.

We have extensive knowledge of London Borough planning policies, Local Authority regulations, and Building Control requirements. While some extensions fall under Permitted Development rights, larger or more complex projects—such as double-storey extensions—will require formal planning permission. Where approvals are needed, we work closely with your chosen architects, surveyors, and structural engineers to help streamline the process and avoid unnecessary delays. Our goal is simple: secure approvals efficiently and deliver the exact space you envision.

Whether you’re planning a contemporary wrap-around extension, a side-return, rear extension, loft conversion, or a traditional home expansion, N10 Contractors can provide a detailed and transparent quotation once your designs and permissions are in place. We also collaborate with interior designers—or can recommend trusted professionals—to ensure your finished space is both functional and beautifully designed.

Have a Project in Mind?

We are committed to making your home improvement journey as straightforward and hassle-free as possible. Your dedicated N10 Contractors project manager will coordinate with Building Control officers, suppliers, and tradespeople to keep your project running on schedule and within budget.

We supply all necessary construction materials and, if required, can source kitchens, bathrooms, fixtures, and fittings. Our skilled, multi-trade team delivers:

  • Structural steel installation & brickwork

  • Roofing & rooflights

  • Screeding & flooring preparation

  • Windows & bi-fold doors

  • Patio & sliding doors

  • Plumbing installations

  • Electrical works

  • Plastering & decorating

As a fully integrated building and property services company, we work with highly qualified tradespeople who are experts in their respective fields. From builders and roofers to electricians and finishers, every professional involved in your project is selected for quality workmanship and reliability.

At N10 Contractors, we pride ourselves on delivering high-standard construction projects—completed on time, within budget, and built to last.