Do I Need Planning Permission?
Instant planning advice powered by PLAIN — the UK’s leading AI planning advisor.
- Built on UK planning law
- Local Authority Policy reviewed
- National & Local Policy included
Sample Report
Review our sample report for a taste of what to expect
Enter your Site Details
Provide the exact location details and describe in as much detail as possible what you would like to propose.
Full PLAIN Report
Policy pack, success probability, fees & validation checklist.
About us
About PLAIN
PLAIN (Planning + AI) was created out of frustration with the complexity and interpretation of the UK planning system. Homeowners and small developers often struggle to understand whether they need planning permission, what policies apply, and what their chances of success really are.
Our Services
Our Tailored Planning Services
Permission Need Assessment
We assess your project to determine if planning permission is required, saving you time and avoiding potential penalties.
Personalized Regulatory Advice
We guide you step-by-step to comply with local and national regulations, tailoring the information to your specific case.
Third Party Reporting Advice
We Identify and List the necessary documents that may be required for your application to support your submission to the authorities.
PLAIN Accuracy
PLAIN will make comprehensive efforts to provide complete and accurate advice in your report. Please provide any and all information available to ensure the most accurate outcomes in your taylored report.
Why upgrade to the Full Report?
Complete Policy Pack
NPPF, Local Plan, SPDs, and NDPs — all mapped to your proposal.
Success Probability
Objective score with reasons and pitfalls to avoid.
Validation Checklist
Exact drawings/reports your LPA will expect — no surprises.
PD vs Full Route
Clear route recommendation, incl. Article 4 restrictions.
Our Blog
Planning news
How to Save Money on a Planning Application
Practical tips to avoid wasted drawings, invalid applications, and costly delays.
Permitted Development Rights Explained (Householders)
What PD really allows, the limits you need to know, and when a full planning application is still required.
Take the First Step Toward Your Project
Our planning experts are ready to help you turn your idea into reality. Fill out our short form and get personalized advice to move forward with confidence and without setbacks.