
Design and Build in Eastbourne
+ design and builds
Specialist Design Build Services in Eastbourne, Haywards Heath & Across East Sussex
The team at Sussex Extra Rooms provides comprehensive design and build services for homeowners looking to transform their properties. Based in Peacehaven and covering Eastbourne, Haywards Heath, and the surrounding areas, our building company offers a seamless, fully managed experience from the first consultation to the final handover.
Whether you want to build a new home, expand your existing one, or completely refurbish an older property, we combine creative design, construction expertise, and project management services to deliver beautiful, functional, and future-proof spaces.


A Turnkey Design and Build Experience
Our fully managed – and stress-free – building service gives you the advantage of working with one team from start to finish. We offer:
- Initial concept discussions and site surveys
- Architectural drawings and planning applications
- Structural engineering and building control support
- Skilled trades across all building disciplines
- Project management and client communication throughout
We tailor every project to suit your needs, timeline, and budget. Combining all trades and services under one roof minimises disruption and maximises efficiency.
What We Can Do
Our experienced house builders and design professionals at Sussex Extra Rooms create spaces that enhance everyday living. We take pride in delivering practical layouts, high-end finishes, and thoughtful details, all backed by decades of experience and a one-year workmanship guarantee.

Custom Design Build Services in Eastbourne
New Build Construction
From concept to completion, we design and construct residential properties built to modern standards. Our team handles everything from planning applications to zoning permissions and utilities, ensuring a stress-free process. As experienced builders, we create bespoke homes that meet your lifestyle, design preferences, and budget.
House Extensions
Whether you envisage a larger kitchen, a new bedroom, a much-needed home office, or a multi-functional open-plan space, we create bespoke extensions that blend with your Eastbourne home’s architecture and maximise its potential.
Property Renovations
We revitalise tired or outdated spaces with expert structural work, layout reconfigurations, new kitchens and bathrooms, and complete interior upgrades.
Interior Remodelling
Do you need to improve flow, function, or aesthetics? We transform interiors with clever design, structural changes, and updated materials that instantly make your home more beautiful and efficient.
Project Management
Our in-house project management ensures your build stays on track. We oversee every element, from coordinating trades and timelines to managing suppliers and approvals.
Experienced House Builder in Haywards Heath
We bring a highly personalised, local service to every job. With over 50 years of combined experience, the Sussex Extra Rooms team is well-versed in renovation and new build construction techniques, local planning processes, and the architectural styles common across East Sussex.
Whether building from scratch or updating what you already have, we listen carefully and work collaboratively to bring your ideas to life.
Our Design Build Services Often Include:
- Kitchen extensions with bifold doors
- Side-return or rear-facing additions
- Loft or over-structure expansions
- Bathroom remodelling with bespoke finishes
- Open-plan layouts and structural reconfigurations
- Timber-frame builds and garden rooms
- Hard landscaping and outdoor living spaces
- New build homes designed and built by our house builders
We are proud to be a trusted choice for clients looking for expert design build services that are efficient, well-managed, and tailored to individual requirements.


What is a design and build service?
It’s a streamlined process in which one company handles everything from design, planning, and permissions to the construction and finishing touches.
Do I need to hire my own architect?
No. Sussex Extra Rooms offers architectural drawing and planning support as part of our custom service.
Can you help with planning permission?
Yes. We handle planning applications and liaise with local councils and building control.
Will I need to find separate tradespeople?
Not at all. We supply all certified trades in-house, from electricians and plumbers to carpenters and decorators.
Is the work guaranteed?
Yes, we offer a one-year workmanship guarantee on all completed work.

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Let’s Build Something Great
When you choose Sussex Extra Rooms, you’re investing in more than just bricks and mortar. You’re choosing a team that values quality, communication, and client satisfaction.
Let us help you turn your vision into a reality. Contact us today to arrange a consultation and take the first step toward your dream home with our expert design and build services.
Call 07484 235422 or 01273 585178 for professional building services in Eastbourne, Haywards Heath and the surrounding areas.