House Extensions in Maidstone
Professional house extensions in Maidstone, including rear extensions, side extensions, wraparounds and double-storey builds. High-quality workmanship, full project management and free, itemised quotes.
House Extensions in Maidstone
Create More Space, Add Value & Transform the Way You Live
A well-designed house extension is one of the most effective ways to expand your living space and increase your home’s value — without the stress and cost of moving.
At Maidstone Builder, we specialise in building modern, spacious, energy-efficient extensions that blend seamlessly with your home’s existing structure and character.
From open-plan kitchen extensions to double-storey expansions, we manage every stage of the project with professionalism, clear communication and expert craftsmanship.
Whether you’re looking for a bigger kitchen, a family room, a home office or additional bedrooms, we tailor our service to suit your space, your lifestyle and your long-term plans.
Types of Extensions We Build
Create More Space With a High-Quality Home Extension
Single Storey Rear Extensions
Single storey rear extensions are our most popular choice for Maidstone homeowners wanting additional ground floor space. They create room for spacious kitchen-diners, larger living areas, or dedicated home offices without the cost of building upward. Under permitted development, you can typically extend 3 metres from the original rear wall for attached houses or 4 metres for detached properties without planning permission. Larger extensions up to 6 or 8 metres are possible through the prior approval process. We design single storey extensions that maximise natural light through bi-fold doors, skylights, and roof lanterns, creating bright welcoming spaces that transform family life across homes in Bearsted, Penenden Heath, and throughout Maidstone.
Double-Storey Extensions
When you need both ground floor and first floor space, a double storey extension delivers exceptional value. Building two storeys costs significantly less than constructing the same space as separate single storey projects because foundations, walls, and roof are shared. Double storey extensions suit growing families needing a larger kitchen-diner below with additional bedrooms or bathrooms above. These extensions typically require planning permission and must consider impact on neighbours and light to adjacent properties. We design double storey extensions that complement your existing home, whether you own a Victorian terrace near Maidstone town centre or a detached property in Loose, Coxheath, or surrounding villages.
Side & Wraparound Extensions
Many Victorian and Edwardian terraces and semi-detached houses in Maidstone have narrow side returns running alongside the property. Extending into this unused strip adds valuable width to your kitchen without taking significant garden space. Side return extensions are particularly effective when combined with a modest rear extension, transforming a cramped galley kitchen into a generous open-plan living space. This approach suits period properties throughout Maidstone town centre, along the London Road corridor, and in established residential areas like Allington and Barming. We design side return extensions that maximise the space gained while maintaining natural light to existing rooms through careful glazing placement.
Open-plan living conversions
Wrap-around extensions combine rear and side extensions into one L-shaped structure, maximising the space gained from your project. This approach suits corner plots or properties where both side and rear extension are feasible. Wrap-around designs create the largest ground floor transformations, often doubling the size of your kitchen and living space in a single project. They require careful design to maintain natural light to existing rooms and ensure the extension complements your home’s proportions. We plan wrap-around extensions for properties across Maidstone, from family homes in Tovil and Grove Green to larger detached houses in Bearsted, delivering dramatic transformations that enhance both living space and property value.
What’s Included in Our Extension Service
We manage your extension project from initial concept through to completion, handling every stage so you can focus on the exciting part: planning how you will use your new space.
Our service begins with a free consultation at your Maidstone property, where we discuss your requirements, assess feasibility, and provide initial guidance on design options and likely costs. Once you decide to proceed, we work with architects and structural engineers to develop detailed plans and obtain any necessary planning permission or Building Regulations approval.
Construction follows a structured process. Groundwork and foundations come first, ensuring a solid base for your extension. Walls rise next, followed by the roof structure and weatherproofing to make the building watertight. First fix electrical and plumbing installations are completed before plastering. Windows and doors are fitted, then second fix electrics, plumbing, and heating. Finally, decoration, flooring, and finishing touches complete your new space.
Throughout construction, we coordinate all trades seamlessly, from bricklayers and roofers to electricians and plasterers. You deal with one project manager who keeps you informed, addresses questions promptly, and ensures work progresses on schedule. We maintain a clean, organised site, respect your property, and minimise disruption to your daily life.
Every extension is completed to Building Regulations standards with full certification and documentation for your records.
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
Structural Alterations
Removing a wall, widening a doorway, or reconfiguring your ground floor layout transforms how your home works and feels. We carry out structural alterations across Maidstone, including load-bearing wall removal with steel beam installation, new openings, and complete layout reconfiguration.
Garage Conversions
Transform an underused garage into a warm, functional living space. From home offices and bedrooms to playrooms and studios, we manage the full conversion process — including insulation, electrics, plumbing and all finishing touches.
Get a Free Extension Quote
Planning an extension in Maidstone? Contact us today for a free, no-obligation quote from experienced local builders.