When you need additional space on both the ground floor and first floor, a double storey extension delivers the most space for your investment. Building two storeys costs significantly less than constructing the same area as separate single storey projects because the foundations, external walls, and roof structure serve both floors simultaneously. The result is a substantial increase in living space — typically a larger kitchen-diner or living area below with additional bedrooms and bathrooms above.
We design and build double storey extensions across Eastbourne, managing the full project from initial design and planning applications through to construction and finishing. Our team handles all trades in-house including groundwork, structural steelwork, bricklaying, roofing, first and second floor carpentry, plastering, electrics, plumbing, and decoration.
Double storey extensions require planning permission in most cases, and we guide you through the application process alongside the design stage. Contact us for a free consultation to discuss how a double storey extension could transform your Eastbourne home.
A double storey rear extension is the most common two storey project we build across Eastbourne. The ground floor typically creates a spacious kitchen-diner or enlarged living area, while the first floor adds one or two bedrooms, a bathroom, or an ensuite above. Under permitted development, a double storey rear extension can extend up to three metres from the original rear wall and must sit at least seven metres from the rear boundary. The roof pitch must match the existing house, and the eaves and ridge must not exceed the original heights. Where these limits don’t provide enough space, a planning application allows for a larger or more tailored design that suits your property’s specific layout and your family’s needs.
A double storey side extension adds width to your home on both floors, creating significant additional space without extending into the garden. The ground floor might provide a larger kitchen, utility room, or home office, while the first floor adds a bedroom and ensuite or extends an existing bedroom into something more generous. Side extensions require careful design to avoid a terraced appearance with neighbouring properties — planning officers typically require the first floor to be set back from the front elevation and the ridge height to sit below the existing roof line. We design double storey side extensions that complement your Eastbourne home’s proportions and character, producing an addition that looks considered rather than bolted on.
If your Eastbourne home already has a single storey rear extension with solid foundations, building a second storey on top of it can be a cost-effective way to gain first floor space without starting from scratch. This approach requires a structural engineer to assess whether the existing foundations and walls can support the additional load. In many cases, particularly where the original extension was built with robust foundations, the existing structure is adequate or needs only minor reinforcement. Where the foundations are insufficient, underpinning or strengthening work is needed before building upward. We assess every over-structure project honestly, advising you whether building on top is genuinely viable or whether a new double storey extension from the ground up makes more practical and financial sense.
A first floor addition extends your upper level above an existing ground floor footprint — typically above a garage, a flat-roofed single storey extension, or another part of the house where only one storey currently exists. This approach maximises your first floor accommodation without increasing the building’s footprint on the ground. The structural requirements are similar to an over-structure extension — the existing structure below must be capable of supporting the additional load. We carry out full structural assessments before committing to the design, ensuring the project is feasible and the existing building can handle the additional weight. First floor additions are particularly effective on properties across Eastbourne where the ground floor footprint is already generous but the upstairs feels cramped.
A double storey extension is one of the largest building projects most homeowners undertake, and the quality of the builder determines the quality of the outcome. We bring extensive experience to every two storey project, combining structural knowledge with quality craftsmanship and professional project management. From the first foundation trench to the final coat of paint, we handle every trade and coordinate every stage so you deal with one team throughout.
We provide detailed, itemised quotes that specify exactly what’s included — structural work, materials, labour, scaffolding, building control fees, and finishing. You know the cost before we start, with no hidden extras mid-build. We keep you informed throughout construction and make sure you’re satisfied with progress before moving from one stage to the next.
We build double storey extensions throughout Eastbourne and the surrounding area, covering Old Town, Meads, Upperton, Ratton, Willingdon, Langney, Hampden Park, Polegate, Pevensey Bay, Westham, Hailsham, and surrounding East Sussex villages.
Converting an underused garage into a habitable room gives you additional living space at a fraction of the cost of an extension. We carry out garage conversions across Eastbourne, transforming integral and attached garages into bedrooms, home offices, playrooms, and self-contained annexes. Our service covers structural alterations, insulation, damp proofing, flooring, electrics, heating, plastering, and finishing. The existing structure provides the walls and roof, keeping costs well below a new build. Most garage conversions complete within three to four weeks with minimal disruption to your daily routine.
Breathe new life into your Eastbourne home with a professional renovation. Whether refreshing a single room or undertaking a complete transformation, we deliver results that exceed expectations. Our renovation service covers structural alterations, new layouts, kitchen and bathroom installations, plastering, rewiring, replumbing, flooring, and decoration. We coordinate all trades, keeping your project on track and on budget. A double storey extension combined with internal renovation work can completely transform your Eastbourne property, delivering a home that feels brand new without the cost and upheaval of moving.
Converting an underused garage into a habitable room gives you additional living space at a fraction of the cost of an extension. We carry out garage conversions across Eastbourne, transforming integral and attached garages into bedrooms, home offices, playrooms, and self-contained annexes. Our service covers structural alterations, insulation, damp proofing, flooring, electrics, heating, plastering, and finishing. The existing structure provides the walls and roof, keeping costs well below a new build. Most garage conversions complete within three to four weeks with minimal disruption to your daily routine.
Planning a double storey extension? Contact us today for a free, no-obligation quote from experienced Eastbourne builders.