Home Extensions Chichester Builders

Professional home extensions in Chichester including single-storey, double-storey, side and rear extensions.

Create More Space With a Professional Home Extension

When your home no longer provides the space your family needs, an extension is almost always a better investment than moving — particularly in Chichester where property values are strong and the costs of trading up are substantial. The stamp duty, estate agent fees, and solicitor costs involved in moving to a larger house in the Chichester area often exceed the cost of adding the space you need to the home you already have. You keep the location, the schools, the neighbours, and the character of a property you chose for good reasons.

We design and build house extensions across Chichester and the wider West Sussex area, handling every stage from initial concepts and planning applications through to construction and finishing. Single storey rears that open onto the garden, 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 — we build them all and manage every trade involved.

Our service covers the complete project from the first foundation trench to the final coat of paint, with one team coordinating groundwork, steelwork, bricklaying, roofing, plastering, electrics, plumbing, and all finishing. Contact us to discuss your extension.

Types of Extensions We Build

Single-Storey Extensions

A single storey extension is the most popular project we build across Chichester. It adds ground floor space for a larger kitchen-diner, an expanded 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 your interior with the garden. The housing across Summersdale, Parklands, and Whyke responds particularly well to this treatment, transforming separate cramped rooms into flowing living spaces that make the most of Chichester’s mild Sussex climate.

Double-Storey Extensions

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 total 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 through Chichester District Council in most cases and need careful design to minimise impact on neighbouring properties and complement the existing streetscape. We design double storey additions that match the proportions, materials, and roofline of your existing home, ensuring the extension looks like it has always been part of the property rather than an obvious bolt-on addition.

Side & Wraparound Extensions

Many of Chichester’s terraced and semi-detached properties — particularly the Victorian and Edwardian housing around the city centre, through the Hornet area, and into Westgate — have narrow side passages that serve no practical purpose beyond storing bins. Extending into this strip adds valuable width to the ground floor without consuming garden space. A side return transforms a cramped galley kitchen into a room with genuine space to work and eat in. Combine it with a rear extension and you create a wrap-around — an L-shaped addition that maximises the ground floor footprint in one coordinated project. Wrap-around extensions deliver the most dramatic transformations, often doubling the usable kitchen and living area. We design both approaches to maintain natural light to existing rooms while creating the largest possible gain from the available space.

Open-Plan Kitchen-Diner Extensions

The kitchen-diner extension is the single most requested project we build across Chichester. 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 you need to fit out separately. Kitchen-diner extensions across Chichester typically complete within ten to fourteen weeks from breaking ground to handover.

Extension Builders Across Chichester

An extension is one of the largest investments most homeowners make in their property, and the builder you choose determines the quality of the result, the smoothness of the process, and whether the project finishes on time and within budget. Chichester’s housing stock adds its own considerations — the extensive conservation area covering the city centre, the proximity to the South Downs National Park to the north and east, and the period properties that demand sympathetic design all require a builder who understands the local planning landscape as well as the construction itself.

We provide detailed, itemised quotes specifying groundwork, materials, labour, steelwork, scaffolding, building control fees, and all finishing. You know the cost before we start, and if anything changes during the build we discuss it openly before proceeding.

We build house extensions throughout Chichester and the wider West Sussex area, covering Summersdale, Parklands, Whyke, Portfield, Stockbridge, Westgate, the Hornet, Fishbourne, Bosham, Lavant, East and West Wittering, Selsey, Bognor Regis, and surrounding villages.

More of our services

Garden Rooms & Outbuildings

Create extra space with a purpose-built garden room, office, workshop or insulated outbuilding. Designed around your home and lifestyle, our garden structures are durable, practical and finished to a high standard — perfect for work, hobbies or additional living space

Loft Conversions

We carry out Velux, rear dormer, and hip-to-gable conversions across Chichester, managing structural steelwork, floor strengthening, insulation, staircase installation, electrics, plumbing, and finishing. Most conversions proceed under permitted development, though properties within Chichester’s conservation area or the South Downs National Park should confirm the planning position first.

General Building

From single-room refurbishments to complete property transformations, we handle building work that crosses trade boundaries across Chichester and West Sussex. Our service covers structural alterations, wall removal, layout reconfiguration, rewiring, replumbing, plastering, flooring, and decoration.

Request an Extension Quote

Fast, clear pricing for any type of house extension.

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