Home Extensions in Bournemouth

Dorset Extensions Group builds high-quality, fully project-managed home extensions for homeowners across Bournemouth and the wider BCP (Bournemouth, Christchurch & Poole) area. Whether you need extra space for a growing family, a modern open-plan kitchen extension, or a full double-storey addition, our team handles every stage of the build — from initial design and planning through to the final coat of paint.

All work is carried out by our own experienced tradespeople and complies fully with Building Regulations and British Standards. If we ever need to bring in a specialist subcontractor (for example a gas engineer), we only use people we trust to meet our own high standards.

Call us today for a free, no-obligation quotation on 01305 310 310.

Types of Home Extension We Build in Bournemouth

Every property and every family is different, so we design each extension around how you actually want to live. Our Bournemouth home extension services include:

• Single-storey rear extensions — the most popular way to create a bigger kitchen-diner or open-plan family space.
• Double-storey extensions — add extra bedrooms and living space at the same time, often the most cost-effective way to expand a home.
• Side-return extensions — make use of the unused side alley common in many Bournemouth terraced and semi-detached homes.
• Wrap-around extensions — combine a side and rear extension for a substantial, fully open-plan ground floor.
• Kitchen extensions — and once the build is finished, we can fit the new kitchen too, to the same high standard.
• Porch and entrance extensions — a smaller-scale project that adds kerb appeal and useful storage.

If you’re not sure which option suits your property, our designers will talk through your budget, your goals and your home’s layout before recommending the best approach — see our main Home Extensions & Additions page for more on how we approach every build. We also build garden rooms, complete loft conversions and conservatories for Bournemouth homeowners looking at other ways to add space.

Planning Permission for Extensions in Bournemouth

Many single-storey rear extensions fall under permitted development rights and don’t need full planning permission — but this depends on the size of the extension, your property type, and whether you’re in a conservation area. Bournemouth falls under BCP Council (Bournemouth, Christchurch and Poole) for planning applications, and we handle the whole process on your behalf, including:

1. Checking whether your extension needs full planning permission or falls under permitted development.
2. Preparing and submitting drawings and applications to BCP Council where required.
3. Ensuring the design meets Building Regulations for structure, insulation, fire safety and ventilation.
4. Arranging Building Control sign-off and providing you with completion certificates once the job is finished — essential paperwork if you sell your home in future.

Areas We Cover Around Bournemouth

We regularly build home extensions across Bournemouth and the surrounding towns and villages, including:

• Bournemouth town centre & Westbourne
• Southbourne & Boscombe
• Kinson & West Howe
• Poole & Broadstone
• Christchurch
• Ferndown & West Parley
• Wimborne Minster & Corfe Mullen
• Ringwood & Verwood

Don’t see your area listed? Get in touch anyway — we cover most of Dorset from our base near Weymouth. See our full Contact Us page for details.

Why Choose Dorset Extensions Group

• Fully insured with insurance-backed warranties on completed work.
• One point of contact — we project manage the entire build from foundations to finish.
• Building Regulations compliant — every extension is signed off correctly, protecting you when you come to sell.
• Complete the job — from groundworks and roofing to kitchens & bathrooms and UPVC windows & doors, we can finish your extension completely rather than leaving you to coordinate separate trades.
• Local reputation — the majority of our work comes from recommendations, because we treat every home with the same care as our own.

Frequently Asked Questions

Do I need planning permission for a home extension in Bournemouth?

Not always. Many single-storey rear extensions are covered by permitted development rights, but this depends on the size, your property type and whether the property is in a conservation area. We check this for you and handle any applications needed with BCP Council.

How much does a house extension cost in Bournemouth?

Costs vary depending on the size of the extension, the specification, and whether structural work such as steel beams or new foundations is required. We provide a free, detailed quotation after visiting your property, so you know exactly what’s included before any work starts.

How long does a home extension take to build?

A typical single-storey rear extension takes around 8-12 weeks from groundworks to completion, while larger double-storey or wrap-around extensions can take longer. We’ll give you a realistic project timeline as part of your quote.

Will you handle the Building Regulations paperwork?

Yes. We manage Building Control applications and inspections throughout the build and provide you with completion certificates once the extension is finished.

Get a Free Extension Quote in Bournemouth

Ready to add extra space to your Bournemouth home? Call 01305 310 310 or email info@dorsetextensionsgroup.co.uk for a free, no-obligation quotation. You can also reach us through our Contact Us page or our Facebook page.