Planning permission, made clear
Not sure if you need planning permission?
Find out free.
Answer a few questions about your property and proposed works in England. Get a result you can act on: No, Yes, Prior Approval, or Maybe, with a plain English explanation based on the GPDO 2015. About five minutes. No registration.
Free. Works for any residential project in England.
Example result
No planning required
Likely permitted development.
Conditions apply. Verify with your local authority before proceeding.
How it works
Tell us about your project
Enter your postcode, pick your project type, and answer a short set of questions. Around five minutes.
Get a clear Yes, No, or Maybe
Your answers are checked against current permitted development rules. You get a straight result with a plain English explanation.
Get guidance if you need to go further
If your project needs planning permission, paid guidance is available. Borough-specific, generated instantly.
Scope
What we cover
Residential projects in England only.
Single storey rear extension
Double storey rear extension
Loft conversions
Rooflight, dormer, hip-to-gable, mansard
Side extensions
Outbuildings and garden offices
Front extensions and porches
Internal works
Renewable energy
Solar panels, heat pumps
Basements
Coming soonWhy this result holds
What underpins the result
Current legislation
Based on the General Permitted Development Order 2015 and all subsequent amendments.
Location-aware
Your postcode identifies your local planning authority, and results are tailored to it. Non-London results clearly flagged.
Honest about limits
Clearly states what falls outside scope. Listed buildings and complex cases referred on directly.
Built by professionals
Over ten years of experience in technical assessments across UK residential projects.
Paid guidance
The free check gives you a result.
Paid guidance tells you what to do with it.
Coming soon
Full Planning Permission
Your project requires a planning application.
£35
Coming soon
Prior Approval
Larger Home Extension scheme applies.
£17
Coming soon
Building Regulations
No planning needed, but building regs required.
£17
Coming soon
Edge Case Assessment
Your result is a Maybe. A local factor needs confirming.
£17