
Single Storey Extensions: Transform Your Chelmsford Home
Quality Single Storey Extensions from Local Chelmsford Builders
Create Your Ideal Living Space
INTRODUCTION
Feeling cramped at home but love your neighbourhood? A single storey extension offers the perfect solution without the upheaval of moving. At Construction Inc Limited, we've been crafting beautiful extensions for Chelmsford homes since 2022, combining our decade of industry experience with our family-business values. We understand that your home isn't just bricks and mortar – it's where your life happens. That's why our single storey extensions are designed to perfectly complement your existing property while creating the extra space you need.
Whether you're dreaming of a spacious kitchen diner, a cosy snug, or a practical home office, we'll help bring your vision to life. As established builders Chelmsford residents trust, we handle everything from initial planning through to the finishing touches. Not sure where to start? Our extension FAQ page answers common questions, or you can contact us for a friendly, no-obligation chat about your extension on a house project. Ready to explore the possibilities? Discover our complete house extension services.

Why Choose a Single Storey Extension?
WHY CHOOSE A SINGLE STOREY EXTENSION?
Expanding your current home with a single storey extension makes practical and financial sense. With property prices in Chelmsford continuing to rise, improving rather than moving saves you from stamp duty, legal fees, and the stress of house hunting. A well-designed extension on a house creates that much-needed added space without sacrificing your garden or outdoor areas. Think about it – no changing schools, no leaving neighbours you like, and no losing your favourite local spots. Plus, you'll typically see a significant home value increase – often more than the cost of the work itself.
We find many Chelmsford homeowners initially consider small extensions and are surprised by how even modest additions transform how they use their home. Your single storey extension can solve specific frustrations – like a kitchen that's too cramped for entertaining or a living area that doesn't work for family life. Our practical approach focuses on creating spaces that work for your daily routines. For growing families, the extra room can make all the difference in comfort. Looking for inspiration? Check out our house extension ideas or kitchen extension projects to see what's possible.
Designing Your Perfect Extension
DESIGNING YOUR PERFECT EXTENSION
Great single storey extensions begin with thoughtful design. We'll connect you with our trusted architect who'll listen carefully to understand how you actually live in your home – not just what looks good on paper. Want an open plan kitchen that flows into the garden? Fancy a flat roof design with skylights? Need clever storage solutions? The design phase is where we nail down these details. Unlike other builders Chelmsford offers, we don't rush this crucial stage – we know getting the design right saves headaches later. We'll explain the options in plain English, from bi-fold doors to roof lanterns, helping you make informed choices without the technical jargon.
Maximising natural light is usually top of our clients' wishlists, so we'll suggest ways to flood your new added space with sunshine – perhaps through roof glazing or strategically placed windows. The right lighting transforms an extension from merely 'additional room' to your favourite part of the house. We'll produce detailed plans that balance your vision with practical considerations and, crucially, will guide these through planning approval. If you proceed with us, we'll deduct the design costs (up to £1,200) from your final invoice. Not sure which extension style suits your property? Explore our rear extension ideas and side extension house options.

Navigating Planning Rules & Building Regulations
NAVIGATING PLANNING RULES & BUILDING REGULATIONS
The paperwork involved in building an extension regulations can seem overwhelming, but our decade of experience helps smooth the way. Many single storey extensions in Chelmsford fall under 'permitted development' rights, potentially allowing you to extend without full planning permission – though we always recommend obtaining a certificate of lawful development for peace of mind. The rules depend on factors like your property type, location, and the extension dimensions. Terraced and semi-detached homes can typically extend up to 3m from the original house, while detached properties allow up to 4m. Height restrictions generally limit single storey extensions to 4m for pitched roofs and 3m for flat roof designs.
Beyond planning, building an extension regulations cover structural integrity, insulation, drainage, and fire safety. While small extensions might seem straightforward, getting these technical details right ensures your new space is safe, energy-efficient, and built to last. Construction Inc Limited handles this regulatory maze for you, preparing documentation, submitting applications, and liaising with building control officers. This attention to regulatory detail is another reason we're trusted builders Chelmsford homeowners recommend to friends. For projects needing more extensive approvals, check our guide to extension planning permission or contact us for project-specific advice.
Understanding Costs & Investment Value
UNDERSTANDING COSTS & INVESTMENT VALUE
When budgeting for your single storey extension, it's helpful to understand what affects the price. While typical Chelmsford projects range from £1,800 to £2,500 per square metre, the final cost depends on your specific choices. Materials make a significant difference – porcelain tiles cost more than ceramic, hardwood flooring more than laminate, and bespoke kitchen units more than standard ranges. Structural factors matter too – a flat roof usually costs less than a pitched one, but might not suit every property. For example, a straightforward 3m x 6m extension on a house might start around £38,000 including VAT, but this can vary based on ground conditions, access challenges, and finishing specification.
The good news? A well-executed single storey extension typically delivers excellent return on investment. Estate agents in Chelmsford report that quality extensions can add 10-15% to property values – often exceeding the build cost – while immediately improving your living experience. This home value increase combined with the practical benefits of added space makes extensions a smart financial decision. Our quotes include foundations, concrete floor slab, wall construction, plastering, basic electrics, and our 3-year warranty. We're happy to discuss payment schedules that work for your budget. For more detailed pricing information, see our house extension cost guide or contact us for a personalised estimate.

Why Choose Construction Inc for Your Extension
WHY CHOOSE CONSTRUCTION INC FOR YOUR EXTENSION
Selecting the right builders Chelmsford homeowners can rely on makes all the difference to your extension experience. Since establishing Construction Inc Limited in 2022, James Robinson has combined his decade-plus of building expertise with a genuine commitment to customer satisfaction. Unlike larger firms where you might deal with different faces throughout your project, we provide continuity from start to finish. Our clients appreciate our straightforward approach – we explain things clearly, provide realistic timelines, and stick to agreed budgets. This honest communication is why most of our single storey extension projects come from recommendations.
We understand that having builders in your home for several weeks can be disruptive. That's why we work tidily, minimise noise where possible, and always respect your property. Our team specialises in creating ground floor extension ideas that blend seamlessly with existing structures, whether that's matched brickwork on a period property or contemporary finishes for a modern home. The result? An extension on a house that looks like it was always meant to be there. Ready to discuss how a single storey extension could transform your Chelmsford home? Explore our full extension services or contact us today for a free, no-obligation quote.