Future-proof your home with a beautifully crafted extension delivered by a local, family-run team with over 40 years’ combined experience in quality construction across Crowborough, East Sussex and Kent. From feasibility and engineering to structure, services and finishes, we build seamless, energy-efficient spaces that add long-term value and liveability.
Each project is carefully planned around your lifestyle, budget and property style—whether it’s a contemporary open-plan kitchen-diner or a characterful period extension with bespoke joinery. Using high-quality materials, sustainable building practices and precision workmanship, Deerwood Construction Ltd ensures every extension blends effortlessly with your existing home while improving comfort, performance and energy efficiency for years to come.
Create a generous kitchen-diner, family room or utility space that connects seamlessly to your garden with a beautifully designed single-storey extension. At Deerwood Construction Ltd, we specialise in extending and enhancing ground-floor living areas to create open, light-filled, and practical spaces for modern family life.
We optimise natural daylight through rooflights, large glazed doors and carefully positioned windows, ensuring a bright and inviting atmosphere all year round. Our team handles every element—from groundworks and structural steel installation to plumbing, electrics, plastering, flooring and decoration—delivering a complete turnkey service.
Whether you’re adding space for entertaining, everyday living, or future accessibility, our single-storey extensions combine quality materials, energy-efficient detailing, and exceptional craftsmanship to complement your home and lifestyle perfectly.
Add spacious bedrooms, modern ensuites or a bright home office above your existing ground-floor extension to maximise space and enhance the value of your property. A double-storey extension is one of the most cost-effective ways to expand your home without increasing its footprint, providing functional living space for growing families or multi-generational living.
At Deerwood Construction Ltd, our experienced team ensures precise structural design to maintain proper load paths, balance weight distribution and integrate new floors seamlessly with the existing structure. We focus on insulation, airtightness and thermal efficiency to deliver warm, quiet and comfortable interiors all year round.
From planning and Building Control approval to construction and finishing, we manage the entire process with professionalism and attention to detail—ensuring your double-storey extension enhances both the appearance and long-term performance of your home.
Transform underused side alley space into a bright, functional and stylish extension that enhances both your home’s layout and its natural light. A side-return extension is ideal for period and terraced properties where every inch of space matters, opening up narrow kitchens or dining areas into welcoming, open-plan living spaces. At Deerwood Construction Ltd, we design and build with careful consideration for proportion and balance—ensuring the new structure complements your property’s character while delivering modern practicality.
Slimline steelwork, rooflights and continuous glazing help maximise the footprint without overwhelming the original architecture, while high-quality insulation and ventilation systems ensure lasting comfort and energy efficiency.
From planning and structural calculations to interior finishing and garden integration, our team manages every detail to deliver a flawless, light-filled transformation that adds real value to your home.
Combine rear and side extensions to create a spacious L-shaped layout that completely transforms the way you live. A wrap-around extension offers the perfect opportunity to design open-plan spaces with clearly defined zones for cooking, dining and relaxing—seamlessly connected to your garden through wide glazed doors and natural light
. At Deerwood Construction Ltd, we carefully engineer each project for structural stability, using precision steelwork, reinforced foundations and advanced insulation systems to achieve both strength and energy efficiency. Our design-led approach ensures the new layout enhances flow, maximises light and integrates beautifully with your home’s existing architecture.
Whether you’re creating a family kitchen-diner, an entertainment hub, or additional living space, our wrap-around extensions bring flexibility, comfort and long-term value. Every project is delivered with meticulous planning, attention to detail and the superior craftsmanship that defines our family-run construction business.
On average, single-storey extensions take between 8–14 weeks depending on size, complexity and weather. We’ll provide a clear schedule before starting work.
Absolutely. We ensure brickwork, roofing and windows align perfectly with your property’s existing design, creating a natural continuation of your home.
If you have an unused alleyway or narrow side passage, your home is likely suitable. We’ll assess your site, boundaries and structural requirements during the initial survey.
Yes, in most cases. We plan the build in sections and maintain safe access throughout the project to minimise disruption.
