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Enter your address
Give us an address or postcode and choose the home project you are considering.
Free planning check · England
Find out if you need planning permission — before you pay for drawings
Enter your address and the project you are planning. We check the permitted development rules, the restrictions on your property, and what your neighbours got approved. Free, in about a minute.
- Free check
- No sign-up
- No card
- Free PDF
Planning check
Check your address
Enter an address or postcode to begin.
Free online assessment · Free PDF download · No card required
Every council in EnglandChecked against your exact addressResult in about a minutePlain English, no jargon
How it works
From address to answer in about a minute
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We check the rules for your property
We check permitted development rules against your address, then look for conservation areas, Article 4 directions, listed buildings, flood zones and protected trees.
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See what to do next
Find out whether you are likely to need planning permission, and what to check before you start.
Your result
What your result actually tells you
The likely planning route, the details that need checking, and what each restriction means for your project — explained without the jargon.
Do I need planning permission?
See whether your project might be allowed automatically or is likely to need a planning application.
Are there restrictions on my property?
See which planning restrictions apply to your property and why they matter.
What should I do next?
Know what to check before you pay for drawings, get professional advice or apply to your council.
Nearby decisions
See what your neighbours got approved — and refused
Councils are broadly consistent street by street. We pull together recent decisions on similar projects near your address, so you can see what has been waved through locally and what got turned down — before you commit to a design.
Recent applications near you
Similar projects at nearby addresses, with the decision and the date it was made.
Both outcomes, not just the wins
Approvals and refusals side by side, so you can see where the line sits in your area.
A view on your odds
A qualitative outlook on how projects like yours tend to fare with your council.
Common questions
What to expect
What does CanUBuild tell me?
It shows whether your project is likely to need planning permission, whether there are restrictions on your property, and what to do next.
Is the result a guarantee?
No. The final decision depends on your design and your local council. CanUBuild gives you an early view of the planning rules, so you can plan before paying for drawings or submitting an application.
What projects can I check?
Common home projects including rear and side extensions, loft and garage conversions, garden rooms, porches, basements, driveways, paving and replacement windows.
Find out before you spend
See whether your project needs planning permission, and what to check first. Free, in about a minute.
Check my address