ON POINT CARPENTRY & CONSTRUCTION
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House Extensions in Exmouth & East Devon
A well-built extension adds space, value, and long-term comfort to your home. At On Point Construction, we design and deliver extensions that feel like they were always part of the original property. Based in Exmouth and trusted across East Devon, we take care of every stage with the same craftsmanship, honesty, and attention to detail that define all our work.
When you want work done properly with no shortcuts and no surprises our team is ready to build the space your home has been missing.
Single Storey Extensions in Exmouth
Rear and side extensions that open up the ground floor
A single-storey extension is the most popular way to add space to a home in Exmouth. It works particularly well on the bungalows, semis and coastal properties common across East Devon, where opening up the back of the house connects the kitchen to the garden and lets in more light.
We handle every stage. Foundations, structural steel, brickwork, roofing, glazing, electrics, plastering and final finish. You deal with one team from first site visit to handover.
What we build most often:
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Rear extensions for kitchen-diners and family rooms
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Side returns on Victorian and Edwardian terraces
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Wraparound extensions that combine rear and side in one build
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Garden-facing extensions with bi-fold or sliding doors
Every build ties into the existing property with care. That means matching brickwork and render on older homes, getting roof lines right, and making sure the inside flows as if the new space was always there.
Two Storey Extensions across East Devon
Added bedrooms and bathrooms built to last
A two-storey extension adds significant space for a growing family without the cost of moving. We build them across Exmouth, Budleigh Salterton, Lympstone, Exton and Topsham, typically to create a larger kitchen and living area downstairs with extra bedrooms and a bathroom upstairs.
Our scope includes:
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Foundations sized for two storeys of load
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Structural steel and load-bearing calculations
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Full roof tie in to the existing property
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First-fix and second-fix carpentry
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Plumbing, electrics and plastering
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External finishes that match the original house
Two-storey builds take longer than single-storey and need tighter coordination, but the cost per square metre often works out lower because the foundations and roof are shared across two floors. We handle Building Control coordination and work closely with your architect or structural engineer from day one.
If a full two-storey build isn't the right fit for your property, our loft conversions in Exmouth give you an extra bedroom or home office without extending the footprint.
House Extension FAQs - Exmouth & East Devon
How long does a house extension take in Exmouth?
Most single-storey extensions take between 10 and 14 weeks from groundwork to completion, depending on specification and complexity. Two-storey builds typically run between 14 and 20 weeks. We provide a clear, realistic timeline before work begins and keep you updated throughout you can read more about how we manage projects on our building services page.
Do I need planning permission for an extension in Devon?
Many single-storey rear extensions fall under Permitted Development rights, which means you can build without a full planning application if the project meets set size and height rules. A detached home can usually extend up to 4 metres deep at the rear. Semi-detached and terraced homes have a 3 metre limit. Height is capped at 4 metres, or 3 metres within 2 metres of a boundary.
Those rights are tighter or removed altogether on listed buildings, in conservation areas, and across the East Devon National Landscape (formerly the East Devon AONB). Parts of Exmouth, Budleigh Salterton and Lympstone fall into these zones, so the first job is always to check your property's status. We handle that assessment during our initial site visit and flag whether a formal planning application is the right route.
How much does a house extension cost in Exmouth?
Most single-storey extensions in Exmouth run between £2,000 and £3,000 per square metre, fully finished. A standard 20 square metre rear extension lands around £40,000 to £60,000. Two-storey builds often work out a touch lower per square metre, because the foundations and roof cover more floor area.
Final price depends on ground conditions, structural steelwork, glazing choices, kitchen or bathroom spec, and whether planning permission is needed. We give a detailed written estimate after a free site visit, with every line itemised so you can see exactly what you are paying for.
Can you match an extension to my existing property style?
This is central to how we approach every extension. Whether your home is a Victorian terrace, a 1930s semi, or a more contemporary property, we work to ensure the new build integrates with the existing structure matching brickwork, rooflines, window proportions, and interior detailing. Our background in bespoke carpentry and joiner means we can replicate period features or create a considered contrast where a more modern extension is the right design choice.
Planning a house extension?
Let’s create space that feels right and stands the test of time
If you want the job done properly, with clear communication and craftsmanship you can trust, we’re here to help. Get in touch and we’ll walk you through the best approach for your home, your budget, and your plans.