For many suburban homes with generous gardens, a single-storey extension offers the ideal way to create more space without altering the roofline or disrupting the original character of the property. Whether you're living in a 1930s semi, a Victorian terrace or a post-war detached house, the right ground-floor addition can transform the way you use your home.

Single-storey extensions are often used to create large open-plan kitchens, family rooms, or better links to the garden. They’re also a practical solution for homeowners who want to future-proof their homes by avoiding stairs, or who simply want a more social, flexible layout.

With the right design, even a modest extension can dramatically improve light, flow and usability – particularly when combined with internal reconfiguration. Key considerations often include ceiling height, window placement, garden access and integrating new materials with the original building.

Planning policies vary by borough, but many single-storey extensions fall under permitted development – especially when built to the rear. Understanding how to stay within local guidelines, or how to make a strong case for something more ambitious, can make the process much smoother.

If you're looking for help designing a single-storey extension, it's worth working with someone who understands both the potential and the pitfalls. From compact infill projects to wide full-width extensions with large sliding doors, good design can unlock more than just square footage.