
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.

House Extension Services
Single-storey and rear extensions
Create the extra room your home needs without compromising on build quality or design. We work closely with architects and homeowners to deliver functional, well-finished extensions that open up kitchens, dining spaces, and ground-floor living areas.
What we cover:
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Kitchen and open-plan extensions
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Rear and side-return builds
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Structural steel installation
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Groundworks, drainage, and foundations
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Full internal finishing
Homeowners trust us because we plan carefully, communicate clearly, and treat every property with respect. We ensure the build ties seamlessly into the existing structure, with the level of finish and reliability that clients across Exmouth and East Devon recommend us for.
Two-storey extensions
Add bedrooms, bathrooms, or larger living spaces with a well-constructed two-storey extension built to modern standards. We coordinate all trades, structural requirements, and finishing to ensure a clean, safe, and well-managed build.
What we cover:
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Additional bedrooms and upstairs bathrooms
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Full structural work including steels
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Roofing, insulation, and external finishes
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Electrical, plumbing, plastering, and second-fix joinery
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Building control coordination
Two-storey builds require precision and experience. We have decades of combined knowledge, and we approach each project with professionalism, tidy work practices, and a commitment to delivering results that stand the test of time.
Every extension we deliver is built with long-term performance in mind. We pay close attention to insulation continuity at the junction between existing and new construction, ensuring airtightness is maintained and thermal bridging is avoided. Where appropriate, we integrate modern insulation systems and energy-efficient detailing so your new space performs to current building standards and beyond, reducing running costs and improving comfort from the day you move in.

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 a rear extension?
Many single-storey rear extensions fall under Permitted Development rights, meaning planning permission may not be required. However, there are specific limits on height, depth, and proximity to boundaries that vary depending on your property type and location. Properties in conservation areas (common in Budleigh Salterton and parts of East Devon) may have additional restrictions. We work closely with homeowners and architects to confirm requirements before any work begins, ensuring your project is fully compliant from the start.
How much does a house extension cost?
Extension costs vary significantly depending on size, structural requirements, specification level, and site conditions. A straightforward single-storey rear extension in Exmouth will differ in cost from a two-storey build requiring substantial steelwork and bespoke joinery. Rather than quoting generic figures, we provide detailed, transparent quotations based on your specific plans. Get in touch for an initial conversation about your project.
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.
