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Small kitchen extension ideas for 2023

4 min read
Feb '26 • by Heather

Quick summary

Small kitchen extensions in 2023 can often be done under permitted development rights, which usually don’t need planning permission if the extension is within certain size limits—generally up to 4 metres for rear extensions or 6 metres for detached homes, with some restrictions based on location and previous extensions. Side or side return extensions are also often permitted, especially on Victorian terraces, but shared walls can complicate plans. Costs vary but typically start around a few thousand pounds per square metre, depending on the type and size of the extension, with larger projects costing more.

Are you looking for small kitchen extension ideas for 2023? Then you’ve come to the right place.

Make no mistake, you can get a lot of value out of even a small extension, especially when it comes to your kitchen. From opening up your floorplan to bringing in more natural light, there’s plenty of benefits to adding even just a handful of extra square metres. If you’re considering a kitchen extension for yourself, here are our top tips and ideas to inspire you for the year ahead.

And don’t forget, for tailored home advice, you can book a free consultation.

How do you extend a small kitchen?

When it comes to extending your ground floor, there are plenty of options for you to explore. Here are some pros and cons to the most popular varieties…

Ground floor rear extension

Ground floor rear extensions are one of the most common extension types. They extend out of the back of the property into garden space.

Pros:

  • High feasibility (may fall within permitted development rights)
  • Typically one of the cheapest extension types
  • Can open up accessibility to the garden

Cons:

  • Uses up garden space