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Do I Need Planning Permission for an Extension?

One of the most common questions I get is…
Do I need planning permission for an extension?”

The truth is: not all extensions require it, but rules depend on location, size, and other factors.
This guide will break it all down clearly.

✅ Your extension exceeds 3m (semi-detached) or 6m (detached)
✅ You’re in a conservation area or listed building
✅ It’s a two-storey rear extension
✅ You’re changing the front of the property

✅ Your extension is within permitted development rules
✅ You’re not exceeding 50% of the original garden area
✅ Materials match the existing house
✅ No balconies, raised platforms, or roof changes

💬 Tips to Be Sure

 

🔍 Check with your Local Authority
👷‍♂️ Speak to a professional (like me — I’ll keep it simple and honest)

Get Planning Support Now

🛠️ Next week: Garage Conversions — what you need to know before building inside your home.