House Extensions in Seaton, Devon
Local house extensions builders covering Seaton (EX12), just 20 miles from our Chard base. 17+ years experience, fixed-price quotes and a 5.0★ Google rating.
- 17+ years experience
- Fixed-price contracts
- Serving Devon & beyond
- Free no-obligation quotes
- Fully insured
Professional House Extensions for Seaton Properties
A well-designed house extension is one of the most cost-effective ways to add both living space and significant value to your home. Brick Builds has completed hundreds of extensions across Devon, and our team brings the same care and craftsmanship to every project, large or small — whether it is an open-plan kitchen extension, a two-storey rear addition, or a side-return utility room in Seaton.
We handle all aspects of the build, including planning applications, structural calculations, groundworks, brickwork, roofing, windows and internal fit-out. Our clients in Seaton and across Devon consistently tell us that our communication sets us apart — you will always know exactly what is happening on site, and our fixed-price quotes mean no nasty surprises when the project is complete.
House extensions in Devon need to complement the existing property and satisfy local planning guidelines. Our 17 years of experience working with Devon planning authorities means we know exactly what will and will not gain approval for your Seaton property. We match brickwork, stone, render and rooflines precisely, so the extension looks like it was always part of the original building.
House Extensions Cost Guide for Seaton
A single-storey kitchen or rear extension in Seaton typically costs £30,000–£60,000 depending on size and specification. A double-storey extension ranges from £60,000–£120,000. All quotes are fixed-price — call 01460 353121 for a free no-obligation quote in Seaton.
Planning & Building Regulations for Extensions in Seaton
Many single-storey rear extensions in Seaton fall under permitted development, but larger, two-storey or side extensions usually need a householder planning application to East Devon District Council. We check which route applies to your home, prepare the drawings, and handle Building Regulations sign-off so your extension is fully compliant when you come to sell.
Areas We Cover Around Seaton
Our house extensions team works across Seaton and the EX12 area, including Beer, Colyton, Colyford, Axmouth, Branscombe and Musbury. Homes here are mostly coastal bungalows, Victorian sea-front properties and holiday conversion projects, and we build to suit them.
- Beer
- Colyton
- Colyford
- Axmouth
- Branscombe
- Musbury

Why Choose Brick Builds for House Extensions in Seaton?
- Single and double-storey extensions in brick, stone, render or timber frame
- Planning application support and full architectural liaison for Seaton properties
- Minimal disruption to your existing home throughout the construction process
- Seamless tie-in to existing structures, rooflines and external finishes
- Kitchen extensions, garden rooms and bi-fold door installations
- Structural engineer coordination and building regulations compliance
- Loft dormers, side returns and garage conversions treated as part of extension projects
How Your Extensions Project in Seaton Works
- 1
Free site visit
We visit your property, talk through what you want, and check access, ground conditions and any planning constraints.
- 2
Fixed-price quote
You get a written, itemised quote with a fixed price, so you know the full cost before anything starts.
- 3
Planning & approvals
We work with your architect and engineer, and handle Building Control so every stage is signed off.
- 4
Build & handover
One team manages the build from start to finish, keeps the site tidy, and walks you through the finished work.
Frequently Asked Questions – House Extensions in Seaton
Do I need planning permission for a house extension in Seaton?
How long does a house extension take in Devon?
How much does a house extension cost in Seaton?
Can you match the existing brickwork or stonework on my Devon property?
House Extensions in Nearby Areas
Brick Builds covers house extensions across Somerset, Devon and Dorset. Select a nearby town to see local information.
Get a Free Quote from Your Local Builders
Tell us about your project and we'll get back to you promptly with honest advice and a no-obligation quote. Based in Chard, serving South Somerset, Devon and Dorset.
Areas We Cover
We work across Somerset, Devon and Dorset, with most projects within a 30-mile radius of Chard. Contact us to check if we cover your area.