A house extension in London is more than just extra space — it’s a chance to create a home that truly fits your lifestyle. Whether you’re opening up the kitchen, adding a bedroom, or creating a dedicated home office, the right extension can transform how you live every day.
At S & M Solutions Ltd, we design and build high-quality house extensions across London. From planning and permissions to design and construction, our experienced team handles it all—ensuring your new space blends beautifully with your existing home and adds lasting value.
Every extension project starts with understanding your goals. Do you need more natural light? Do you want to open up the rear of the house for entertaining? Or are you planning a two-storey extension to accommodate a growing family? Whatever your vision, we work closely with you to deliver results that are functional, stylish, and built for the long term.
Enjoy the comfort of your current neighbourhood while upgrading your home.
Extensions are fully customised to suit your family’s needs, taste, and routine.
High-quality extensions add real value and market appeal to your property.
Save on stamp duty, moving costs, and fees while gaining the space you need.
Looking for a full transformation? Combine your extension with a renovation for even greater impact.
Rear Extensions
Side Infill Extensions
Wrap-Around Extensions
Multi-Storey Extensions
Over-Structure Extensions
Project costs vary based on size, materials, and complexity, but here’s a general guide:
We provide clear, personalised estimates based on your brief.
Will my extension match the existing house?
Absolutely. Our designers ensure each extension complements your home’s architecture, style, and materials.
How long will it take?
Most extensions are completed within 12–16 weeks, depending on scope and planning requirements.
Will I need planning permission?
Many extensions fall under permitted development, but if permission is needed, we handle the entire process for you.
We swiftly respond to your building requirements upon your contact, gathering essential information such as your project vision, timelines, and specific needs. This initial step is crucial as it helps tailor our approach to address your unique building needs from the outset.
We offer a detailed consultation—whether in person or by phone—to discuss design, budget, and challenges. Our experts then assess the site and provide a transparent estimate, ensuring clear communication and a strong partnership.
Once the contract is signed, we promptly begin the project, arriving fully prepared to bring your vision to life. With an online monitoring portal and biweekly meetings, we keep you updated, address any concerns, and ensure everything stays on track.
Upon project completion, we conduct a final walkthrough with you to ensure every detail meets your standards, followed by providing comprehensive aftercare instructions and support for any post-completion needs. Our commitment extends beyond the build, ensuring that you are delighted and well-supported even after the project is finished.
From single-storey extensions to multi-level expansions, we deliver carefully planned, high-quality work that enhances how you live.
A well-executed house extension adds more than just square footage—it adds lifestyle, comfort, and long-term value. Whether you’re growing your family or future-proofing your home, we’re here to make it happen with expertise and care.
Fill in the form below to start your extension project with S & M Solutions Ltd.
We provide premium house extension services across Central & Southeast London — including Chelsea, Fulham, Kensington, Westminster, Dulwich, Greenwich, Maze Hill and Blackheath. From rear and side-return extensions to full-width open-plan transformations, our design & build team delivers high-end results tailored to the character of each neighbourhood.
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