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Single Storey Extension Builders
Single storey extensions can take pressure off cramped kitchens, dining areas giving daily life more room to flow.
Why Extend with SB
Plans shaped around cooking, dining and family flow.
Glazing and garden links planned around daily use.
Foundations, beams openings settled before work starts.
Roof, insulation and flooring planned to feel joined up.
Single Storey Options
The best single storey extension depends on where the house feels tight now and which layout change will make daily routines calmer and easier.
Create more room for cooking, eating , gathering in one sociable space.
Open up the back for brighter family space.
Add width and depth to tight rooms.
Join old and new rooms so the whole layout flows together better.
Use roof lanterns and modern glazing well.
Soften the shape and help it match the home.
Single storey extensions feel more worthwhile when layout, light, structure and approvals are sorted early, before changes add stress and cost.
Single Storey Extension Design
Single storey extension design should improve the rooms used most, whether that means kitchen dining, or stronger garden connection.
Planning Permission for Single Storey Extensions
Planning permission or permitted development depends on depth, height, boundaries and how the extension sits against the property.
Steel Beams for Single Storey Extensions
Foundations, steel beams, roof options and structural openings need planning early so the extension stays sound and usable.
Building Regulations for Single Storey Extensions
Building regulations cover structure, insulation, drainage and fire safety, with building control checking key stages before completion.
Cost of a Single Storey Extension
Cost and timing depend on size, glazing, access, approvals and the finish level you choose.
Posted on Kathryn FairsTrustindex verifies that the original source of the review is Google. From the first consultation to the final result Sam and his team carried out exemplary work on our large house extension. We were especially impressed with the standard of brickwork in the build. Simon and Sam were happy to adapt and correct as different situations arose, without any hassle. The whole team were a pleasure to have in our home.Posted on Debbie GinnsTrustindex verifies that the original source of the review is Google. From start to finish, Sam and his team have been fantastic, building an annex for my Mum. As Mum said, it was like having family building it for us, and exactly what she wanted, 100% honest, reliable, friendly team. Couldn't have asked for more. Thank you allPosted on Joanne KirbyTrustindex verifies that the original source of the review is Google. Sam and his team at SB Construction were very professional, hard working and courteous. We are extremely pleased with our finished extension and would highly recommend them.Posted on Tom RiggallTrustindex verifies that the original source of the review is Google. Fantastic experience having SB construction complete our extension a few years back. Very professional and always reliable and came the days they said. The 2 storey extension to the left of our house was completed in no time at all .. and to a high standard, sourced bricks to match perfectly. Would highly recommend them .. brilliant from start to finish ! Thank youPosted on Suzi IrelandTrustindex verifies that the original source of the review is Google. Sam and his team recently completed a loft conversion for us, and we can’t recommend them enough. Where we had been let down by other professionals previously, SB construction went above and beyond to ensure that the build was able to go ahead. And wow what a transformation we couldn’t be happier. Not only the build itself is fantastic, but the family run feel and that personal touch made the whole build experience enjoyable. Suzi & Graham Ireland.Posted on paul keysTrustindex verifies that the original source of the review is Google. SB construction, I don’t believe they can be bettered, they really do bring your dream to life.. premium build quality by highly skilled craftsmen. Thank you for meeting my expectations and living up to your promises.Posted on Claire DoveyTrustindex verifies that the original source of the review is Google. Very happy with build of extension and annex. All staff friendly and courteous. Would highly recommendPosted on Kim ButlerTrustindex verifies that the original source of the review is Google. Very professional firm excellent workmanship Highly recommended.
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What people ask about single storey extensions
That depends on depth, height, boundaries and design. Some projects fit permitted development, while others need planning permission before work begins.
The cost depends on size, foundations, steel beams, glazing, roof type and finishes, so the layout, access and brief need checking first.
Yes. Open-plan single storey extensions can join kitchen, dining and living space, especially where structural openings help old and new areas work together.
Flat roof and pitched roof designs both work well, with the right choice depending on style, light, budget and how the house already looks.
Timing depends on approvals, structure, weather, inspections and finish level, with the timeline shaped by complexity and site conditions.

Recent Single Storey Work
Browse recent single storey projects to see how tight kitchens and living areas become brighter spaces that feel easier to use every day.
Single Storey Extension Contractors
Share what feels cramped, how you want the space to work and get advice before drawings and approvals begin.
Free Single Storey Guide
Use the guide to compare layouts, check approvals and spot cost pressure points before commit to drawings, quotes or build choices.

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