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Single Storey Extensions

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Single Storey Extensions

As well as our extensive range of conservatories, windows and doors, SEH BAC are proud to add single storey extensions to our list of services. Whether you want to extend your living space for a family room, a kitchen, or just to give you that extra space for more comfortable living, then a single storey extension could be exactly the solution for you. Bespoke design coupled with over 45 years of experience to deliver an extension that specifically compliments your home and fulfils your needs.

Why build a Single Storey Extension?

A single storey extension can offer that extra space to really elevate your home, both in enjoyment and value, without the need to work on the existing house roof. Single storey extensions typically offer a return on investment of around 12% of the property value when sold.

All of our builds are individually project managed, offering you a smooth-running build from start to finish. We offer a unique 3D design process that allows the customer to design a bespoke extension specific to their requirements and needs.

Planning for a Single Story Extension

Many single-storey extensions can be built without any need for extra planning permission for your local authority, meaning that improving your home may be easier than you think.

  • Mid or end terrace properties can project into the garden by 3m, being no wider than the original property, without the need for planning permission.
  • Detached properties can project into the garden by 4m, being no wider than the original property, without the need for planning permission.
  • All solid roof extension and conservatories over 30 internal square metres will need building regulations. We at SHEBAC deal with this from start to finish, including supply a building regulation sign off certificate supplied by the local authority.

Single Story Extension Design Options

Our unique 3D design service allows customers to create their dream house extension, specifically crafted to meet their individual needs. You can choose as little or as much glazing and brickwork as you like, SEHBAC will provide you with full options and details on energy efficiency in your extension. We have multiple roof types available, from modern aluminium roofing to typically tiled roofing in either concrete or slate.

SEH BAC offer you a precise build schedule, bespoke design, fast completion, unrivalled finance packages and a ten year guarantee. To discuss your project needs, please call one of our team on 0147 346 7188.

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A Rated Windows

  • SEH BAC windows are typically A- or A+ rated, for maximum energy efficiency.


  • Check out our amazing finance options here at SEHBAC, get up to 3 years interest free credit.

45 Years of Trading

  • SEHBAC are celebrating 45 years of hard work trading across the south east of England.


  • Slash energy bills and add value to your home. Earn guaranteed tax-free income for 20 years.
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