House Extensions in Cornwall & Devon

Transform Your Space

At Tamar Construction Ltd, we specialise in high-quality house extensions across Cornwall & Devon. Whether you’re looking to add extra living space, extend your kitchen, or create a more open-plan layout, we deliver carefully planned extensions built to suit your home and lifestyle.

We understand that extending your property is a major investment. That’s why we focus on clear communication, detailed planning and quality workmanship throughout every stage of the build, ensuring a smooth and professional experience from start to finish.

Modern house exterior with sliding glass doors, wooden accent, and a patio with stone and wood flooring, overlooking neighboring houses and water.
Modern house with a view of the ocean, featuring large glass sliding doors, a patio, and landscaping with bushes and grasses.

Types of extensions we carry out

We design and build a wide range of house extensions, including:

  • Single-storey rear and side extensions

  • Double-storey extensions

  • Kitchen and dining extensions

  • Wrap-around extensions

  • Garage conversions and extensions

  • Structural alterations to open existing spaces

All extension works are carried out in compliance with building regulations and tailored to complement the existing property.

Why choose Tamar Construction for your extension?

Homeowners across Cornwall & Devon choose Tamar Construction because we offer:

  • Experienced project management and estimating

  • High-quality workmanship with attention to detail

  • Clear communication throughout the project

  • Reliable scheduling and realistic timeframes

  • A professional, tidy and well-organised site

Our goal is to deliver an extension that feels like a natural part of your home, built to last and finished to a high standard.

“Our house extension process typically includes:”

Every project begins with a site visit to understand your requirements and assess the existing structure. From there, we work closely with homeowners, designers and building control to ensure the extension is properly planned and executed.

Our extension process typically includes:

  • Initial consultation and site assessment

  • Advice on layout, structure and materials

  • Coordination with architects and engineers where required

  • Groundworks and foundations

  • Structural works and build-up

  • Roofing, insulation, windows and doors

  • Internal finishes and final detailing

We manage the build efficiently, keeping disruption to a minimum wherever possible.

Local extension builders in Cornwall & Devon

We carry out extension projects throughout Cornwall and Devon, including Truro, Plymouth, Newquay, Bodmin, St Austell and surrounding areas. Our local knowledge allows us to advise on planning considerations, construction methods and materials suited to the area.

“If you’re considering a house extension in Cornwall or Devon and would like to discuss your ideas, we’d be happy to help.” we’d be happy to help. Contact Tamar Construction Ltd to arrange a site visit and receive a clear, no-obligation quotation.

Phone: 07538 495579

Email: info@tamarconstruction.com