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Custom-Built Extensions for Evolving Homes in Eastbourne, Haywards Heath & Across East Sussex
Expanding your home is one of the best ways to enhance your living space, increase property value, and avoid the stress of moving. At Sussex Extra Rooms, we offer our East Sussex clients the opportunity to experience bespoke house extensions tailored to specific needs, whether that involves a bigger kitchen, an extra bedroom, or an open-plan family space.
Based in Peacehaven, we cover Eastbourne, Haywards Heath, and the surrounding areas. With over 50 years of combined experience in property renovations and a fully in-house team of builders and tradespeople, we manage everything from design and build to the final handover.
What We Offer
Our home extension service is fully managed; you only deal with one team. We handle:
- Feasibility assessments and on-site surveys
- Architectural drawings and planning applications
- Building control and structural approvals
- All aspects of the build: foundations to final touches
- Project management from start to finish
We create spaces that are practical and blend seamlessly with your existing home, both in style and structure.
Cost Effective House Extension Designs in East Sussex
Rear Extension
To create open-plan kitchens, dining areas, or lounge spaces, rear extensions extend into the garden to add depth and light to your home. We can install roof lights, bifold doors, and energy-efficient glazing to maximise natural light and flow. These additions suit family homes, providing a social area for entertaining, relaxing, and everyday living.
Our design team will ensure your new extension complements the existing architecture while transforming how you use your home.
Side Extension
Often used on properties with unused side return space, side extensions help you widen your home without encroaching on the garden. They work well for utility rooms, cloakrooms, or compact kitchens. With clever design and space optimisation, side extensions can dramatically enhance functionality, especially in older homes where floorplans feel closed off.
Even small additions feel bright and inviting with proper insulation, ventilation, and natural lighting.
Wraparound Extension
This option combines rear and side extensions to maximise floor space and dramatically transform the layout of your ground floor. It is perfect for creating open-plan zones with multifunctional living, dining, and kitchen areas. Wraparounds are particularly effective for busy Eastbourne households, offering space to entertain, relax and move freely.
These extensions often become the heart of the home, and we can tailor everything from ceiling heights to lighting layouts for maximum comfort and flow.
Double Storey Extension
If you’re short on space but don’t want to lose the garden area, a double storey extension adds rooms to the ground and upper floors. Popular uses include an extended kitchen downstairs and a new bedroom or bathroom above. They’re ideal for growing families who need extra space but want to stay in the East Sussex location they love.
Our team ensures structural integrity and aesthetic balance so the upper storey feels like a natural continuation of your existing home.
Over-Structure Extension
We can use the footprint above an existing garage or single storey extension to add valuable first-floor space. These extensions are ideal for creating a home office, ensuite, or extra bedroom while keeping the ground floor unchanged. They offer a smart way to maximise square footage without needing a major reconfiguration of the existing layout.
We ensure the structure is properly reinforced, insulated, and finished to match the rest of your Haywards Heath property.
Kitchen Extension
From knock-throughs to full kitchen wings, the team at Sussex Extra Rooms can create spacious, modern kitchens with tailored layouts, integrated appliances, and premium finishes. We work closely with you on cabinetry, lighting, flooring, and functionality to guarantee the perfect finish.
A kitchen extension is a chance to create a space that perfectly suits your cooking and lifestyle needs, whether a sleek contemporary look or a classic family kitchen.
Garden Room Extensions
Why not link your home with the outdoors through a beautifully designed garden room extension? These versatile spaces are great for gyms, home offices, or tranquil lounges with garden views. We can tailor glazing, heating, and soundproofing to suit how you want to use the space.
Garden rooms also offer a peaceful escape from the main living area, adding value and a sense of luxury to your property.
How long does a home extension take?
Timelines vary depending on the size and complexity, but a standard single storey extension typically takes 8–12 weeks.
Can you match the new build with my existing property?
Yes. We aim to blend materials, brickwork and finishes to ensure the extension looks like a natural part of your home.
Do you need planning permission for house extensions?
Not always. Some extensions fall under permitted development. We can advise on this and handle all planning applications where needed.
Do you provide all trades and project management?
Yes. Our in-house team includes builders, electricians, plumbers, plasterers and decorators. We manage everything from start to finish.
+ GET STARTED
Ready to Expand Your Home With Our Design and Build Specialists?
Sussex Extra Rooms is ready to help if you’re considering extending your home. Contact us today to arrange a consultation, and let’s discuss your options. We’ll guide you every step of the way to create a space that truly works for your lifestyle.
Call 01273 585178 for house extensions in Eastbourne, Haywards Heath and the surrounding areas.