Home Extensions & Renovations in Cornwall
If you love where you live but need more space, better flow, or a fresh start within familiar walls — we’re here to help. At Metters & Wellby, we specialise in high-quality house extensions and renovations across Cornwall, including Bude, Rock, Padstow, Launceston, Wadebridge and the surrounding areas.
Architectural Design for Extensions and Renovations
Whether it’s a single-storey kitchen extension, a full reconfiguration of your layout, or a complete renovation of a period home, we work with you to transform your space with care, clarity, and creativity.
Our architectural services include:
House extension design
Contemporary or traditional styles
Project feasibility appraisals
Discover your design options
Planning applications
Managed from start to finish
Renovations and refurbishments
Modern living in older homes
3D visuals and CGI
So you can see what’s possible before building begins
Building regulations and construction drawings
Every detail covered
On-site support
For a smooth build phase, if you need it
We make the process straightforward and enjoyable — guiding you from initial ideas to approved plans and through the build itself.
Refined Coastal Renovation Ship House
Set in the conservation area of Appledore, this award-winning renovation transformed a tired mid terrace cottage into a clean, minimalist coastal retreat. Our team guided the project from concept and planning through to detailed interior design—creating open-plan living, a bespoke staircase, and seamless indoor-outdoor connections that maximise estuary views. Despite limited site access and conservation constraints, we secured planning approval, retained the historic façade, and managed all logistics via the front entrance—ultimately delivering a beautifully refined home completed in 2020.
Why Work With Us
We’re a small, experienced architectural practice based in North Cornwall. That means you’ll always work directly with a professional team who listens carefully, responds quickly, and designs with both imagination and precision.
Ask the Experts
Book a FREE 30 minute discovery call with Cornwall's award-winning architectural experts
Ask The ExpertsFrequently asked questions
Do I need planning permission for an extension?
Not always. Some extensions can be carried out under permitted development rights, while others will require planning permission. We can review your property and what you’re hoping to achieve and advise on the most appropriate route before the design progresses. For more complex proposals, our Planning Consultancy service can help establish the best approach.
Will I need Building Regulations drawings for my extension, and what are they?
Most extensions will need to comply with Building Regulations. Building Regulations drawings are more detailed than planning drawings and show how the extension will be constructed to meet the required standards, covering areas such as structure, insulation, ventilation, fire safety and drainage. We can prepare the Building Regulations and technical drawings and coordinate with other consultants, such as a structural engineer, where required. These drawings also give your builder much more detailed information to work from when pricing and constructing the project.
Can you help us decide whether to extend or reconfigure our existing home?
Yes. More space isn’t always the only answer. We look at how your existing home works and what you’d like to improve, then explore whether changes to the layout, an extension, or a combination of both would make the best use of the property.
Can you help with the interior as well as the extension?
Yes. Our interior design service can be integrated with the architectural design, allowing the layout, lighting, materials, finishes, kitchens and other elements to be considered together from an early stage.
Can you help us through the construction stage?
Yes. Our involvement can continue beyond planning and technical design into the construction stage. We can liaise with your contractor, attend site, respond to technical queries and help resolve issues as they arise, providing continuity from the initial design through to completion. You can read more about our Building Regulations & Construction service.