Create More Space With a Professionally Built Extension
Winchester is one of the most desirable places to live in Hampshire, and with that comes property prices that make extending far more sensible than moving. The stamp duty alone on buying the next house up the ladder often covers half the cost of an extension — and you keep the location, the schools, the neighbours, and the commute that made you choose Winchester in the first place.
We design and build house extensions across Winchester, handling every stage from initial concepts and planning applications through to construction and finishing. Single storey rears that open onto the garden through bi-fold doors, double storey additions that add bedrooms above and living space below, side returns that widen a narrow kitchen, and wrap-around designs that maximise every available metre of footprint — we build them all and coordinate every trade involved.
Our service covers the complete project. We manage groundwork, structural steelwork, bricklaying, roofing, carpentry, plastering, electrics, plumbing, flooring, and decoration. You deal with one team from the first foundation trench to the final coat of paint, with clear communication and transparent pricing throughout. Contact us to discuss how an extension could transform your Winchester home.
A single storey extension is the most popular project we build across Winchester. It adds ground floor space for a larger kitchen-diner, a generous living area, a home office, or a ground floor bedroom without the cost and complexity of building upward. Under permitted development, you can typically extend three metres from the original rear wall for attached houses or four metres for detached properties without planning permission. Larger extensions up to six or eight metres are achievable through the prior approval process. We design single storey extensions that flood with natural light through bi-fold doors and skylights, creating bright, open rooms that connect interior living space with the garden. The Victorian terraces around the city centre and the family housing across Stanmore and Badger Farm respond particularly well to this treatment.
When you need space on both floors, a double storey extension delivers the most room for your investment. Building two storeys shares foundations, walls, and roof structure across both levels, costing significantly less per square metre than constructing the same area as separate single storey projects. The ground floor typically provides an enlarged kitchen-diner or living space while the first floor adds bedrooms, bathrooms, or an ensuite above. Double storey extensions require planning permission in most cases and need careful design to minimise impact on neighbouring properties. We design double storey additions that match the proportions, materials, and character of your existing Winchester home, ensuring the extension looks like it has always been part of the property rather than appearing as an obvious addition.
Many Winchester properties — particularly the Victorian and Edwardian terraces and semis through the city centre, Highcliffe, and St Cross — have narrow side passages that serve little practical purpose. Extending into this strip adds valuable width to your ground floor without consuming garden space. A side return transforms a cramped galley kitchen into a room with genuine breathing space. Combine it with a rear extension and you create a wrap-around design — an L-shaped addition that maximises the ground floor footprint in one coordinated project. Wrap-around extensions deliver the most dramatic ground floor transformations, often doubling the usable kitchen and living space. We design both approaches to maintain natural light to existing rooms while creating the largest possible gain.
The kitchen-diner extension is the single most requested project we build across Winchester. It combines a rear extension with removal of the internal wall between kitchen and dining room, creating one generous open-plan space for cooking, eating, and family life. The result fundamentally changes how the ground floor works — a bright, sociable room with space for a proper kitchen, a dining table, and often a seating area, all flowing together and opening onto the garden through bi-fold or sliding doors. We handle the structural steelwork for the removed wall, the kitchen fitting, flooring, and all finishing trades to deliver a completed room rather than a shell. Kitchen-diner extensions across Winchester typically complete within ten to fourteen weeks from breaking ground.
Local Experience With Winchester Homes
From period cottages in St Cross to modern properties in Kings Worthy, we understand local house styles and how to design extensions that fit naturally.
Quality Workmanship & Solid Construction
Our extensions are built with high-quality materials, precise workmanship and strong structural integrity.
Clear Communication & Transparent Pricing
You’ll always understand what’s happening and what you’re paying for — no hidden extras or last-minute surprises.
If extending your main house isn’t feasible or you need a separate dedicated space, a garden room provides an alternative. We build bespoke insulated garden rooms across Winchester with quality cladding, high-specification glazing, built-in heating, and professional electrical installations. Every room is designed for year-round comfort with proper insulation and services from the start. Most proceed under permitted development, though properties within conservation areas or near the South Downs National Park boundary should confirm positioning requirements. A garden room and extension serve different purposes — some Winchester homeowners choose both.
If your extension project includes a new kitchen — and most do — we handle the entire installation as part of the build. Our service covers strip-out, structural work, plastering, plumbing, full electrical installations, tiling, flooring, and precision fitting. We install kitchens from any supplier and coordinate every trade in sequence. We also carry out complete bathroom renovations including suite replacements, wet room conversions, and ensuite creations. Having your kitchen or bathroom fitted by the same team building your extension means seamless coordination with no gaps between the structural work and the interior finishing.
From single-room refurbishments to complete property transformations, we handle building work that crosses trade boundaries. Our service covers structural alterations, wall removal, layout reconfiguration, rewiring, replumbing, plastering, flooring, and decoration. We also carry out garage conversions, general building including patios, garden walls, and brickwork, and the kind of projects that need a builder with broad practical capabilities. Winchester’s mix of period properties in the city centre and established family housing across the wider area means we regularly work with different construction types and the specific challenges each one presents.