House Extensions Surrey
Planning a house extension is the smartest way to adapt your home to your growing family without the stress and expense of moving.
Serving Camberley and towns across Surrey, Dave and the team at DJB craft bespoke single and double-storey extensions, open-plan kitchen-diners, and light-filled living spaces.
We manage your project seamlessly from structural foundation works to the final decorative touches, delivering high-end craftsmanship tailored to your lifestyle.
Build the perfect house extension
Why Choose a House Extension?
1. Avoid Moving Costs
Save thousands on stamp duty, estate agent fees, and conveyancing by expanding the living space you already love rather than uprooting your household.
2. Add Significant Market Value
A well-designed, high-spec extension substantially boosts your property’s resale value, making it a lucrative long-term investment.
3. Tailored Open-Plan Living
Gain the exact floor plan you need—whether that's a modern open-plan kitchen, a dedicated home office, or an extra bedroom with an en-suite.
4. Maximised Natural Light
Modern extensions incorporate features like skylights, bi-fold doors, and roof lanterns, transforming dark areas into bright, welcoming family hubs.
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Frequently Asked Questions
Do I need planning permission for a house extension?
Not always! Many single-storey rear or side extensions fall under Permitted Development rights, provided they meet specific size and height criteria. However, if you live in a conservation area, a listed building, or are planning a large double-storey build, full planning permission will be required. We can advise you on the rules for your local council before any work begins.
What is the difference between Planning Permission and Building Regulations?
Planning permission deals with the external appearance and how your build impacts the local area or your neighbours (e.g., height, privacy, boundaries). Building Regulations ensure the structural safety, insulation, fire safety, and quality of the build itself. Every extension—regardless of planning status—must comply with Building Regulations.
Can we stay living in our home while the extension is being built?
In most cases, yes! For the majority of the build—such as foundations, brickwork, and roofing—work takes place externally with minimal impact indoors. Disruption typically peaks when we knock through to connect the old and new spaces, but we build temporary stud walls which do a sterling job stopping dust and debris scattering into your home meaning it stays fully functional throughout.
How much value does an extension add to a property?
While value depends on location and finish, a well-built ground-floor extension typically adds between 5% and 15% to a home’s market value, while double-storey extensions can add up to 20%. Beyond financial value, it dramatically improves your daily living space without the high costs of moving home.
What is a Party Wall Agreement, and will I need one?
If your extension involves building up to or on a shared property line with a neighbour, or excavating foundations near their house walls, you fall under the Party Wall Act. You are required to notify your neighbours in writing before starting. We help guide you through when this is needed so everything runs smoothly and amicably.