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Stunning Single Storey Extensions Built in Andover & Hampshire
Stunning Single Storey Extensions Built in Andover & Hampshire
KJM Group has been the leading choice for quality home improvements in the Andover area for over 40 years. We specialise in helping homeowners gain the space they need without the stress and expense of moving.
A single storey rear extension can transform your living requirements, whether you’re dreaming of a large open-plan kitchen-diner, a spacious new living room, or a functional home office.
As dedicated extension builders in Andover, our expertise allows us to design, plan, and build your stunning new extension from start to finish. We are your true ‘one-stop shop’ for house extensions in Hampshire, taking care of everything from planning and building regulations to plastering, plumbing, and electrics.
See our extension webpage for further product information.
How much does a single storey extension cost?
There are so many variables to pricing an extension that it is very difficult to put a cost without seeing your project. Ground conditions, if the land is falling away, drain runs, electrical requirements and many other aspects affect the cost. At KJM our sales-team are non-commissioned and we offer a no-obligation/no pressure quoting process. We do not price in your home, your quote will arrive via email or post. At the time of writing this article (Jun 2024) we had recently completed a project that came in around £3000 per sq m for the complete works other than decoration and the final finished floor.
Benefits of buying local through KJM
FASTER CONSTRUCTION TIME
Compared to multi-storey extensions, a single storey extension typically has shorter construction times. Modular energy efficient roofing systems minimise disruption during the build, enabling you to enjoy your new space sooner.
MORE COST-EFFECTIVE THAN MOVING
Moving to a larger property is both costly and can be stressful. With a single storey extension, you can have the extra space without paying for additional costs like moving or stamp-duty.
INCREASED LIVING SPACE
One of the most significant advantages of an extension is the increased living space. They can provide you with a larger reception room, a home office or a kitchen, extensions provide the perfect solution.
OTHER WORKS
KJM offers the complete service. We have our own building team and installers. We can, with the help of our partners offer services like planning, electrics, plastering, decorating and plumbing. We are here to help.
INCREASED PROPERTY VALUE
A quality home extension can significantly increase the value of your property, especially when compared to say a conservatory. A room that can be used all year round will immediately add extra value to your home.
ENHANCED QUALITY OF LIFE
Additional living space means more comfort, convenience and a better quality of life for you and your family. Whether it is for a room to relax, entertain or pursue your hobbies.
ENERGY EFFICIENCY AS STANDARD
Modern house extensions are designed with much improved energy efficiency over builds from the past. This can include triple glazed windows and doors. Modern roofs and are manufactured and built with eco-friendly materials.
IMPROVED NATURAL LIGHT
Windows, doors and roof lights can increase the natural light in your new extension. This is important if you are building over another room.
Ready to discuss your house extension in Andover? Contact the trusted extension builders at KJM Group today for your no-obligation quote
House Extension FAQ’s
As mentioned above there are so many variables to pricing an extension that it is very difficult to put a cost without seeing your project. Ground conditions, if the land is falling away, drain runs, electrical requirements and many other aspects affect the cost. Quotations are free and without obligation so don’t hesitate to ask us for a quotation.
The rules for planning are quite complex, so there is no easy answer to this. Rules, known as ‘permitted development’ rights, allow you to extend a house without needing to apply for planning permission if specific limitations and conditions are met. These can very depending on your location. KJM can help with planning applications through their planning consultant. Further information can be found at the planning portal
Grand Designs styles of extensions with big panes of glass, a flat roof with a lantern are very popular. They are favoured for their modern look and simpler construction making the overvall build more cost effectiveness: With this in mind they normally are cheaper and quicker to construct than pitched roofs. This is mainly due to reduced labour and material costs.
Mark Pearce is a highly experienced specialist in the double glazing industry, having built his knowledge from the ground up through hands-on experience in installation, manufacturing, sales, and business management. Beyond his role at KJM, Mark is a keen blogger, writer, and traveller, often sharing insights on the latest innovations in the home improvement industry.
- KJM tops Which? Google and Checkatrade with near‑perfect scores - 31 October 2025
- High-Security Windows & Doors Hampshire: PAS 24, SBD, and the £10K Guarantee - 31 October 2025
- Why you should choose KJM in a crowded market-place? - 23 October 2025
