Prior Approval Checker
Assess Prior Approval requirements for GPDO developments (Classes MA-AB, AC, ZA)
About this tool: Prior Approval
GPDO prior approval route checker — Classes MA, O, Q, R, S, T, AA, AB, AC, ZA. Includes 56-day deemed approval rules and condition requirements.
Use when permitted development requires prior approval from the LPA (e.g. office-to-resi conversion, agricultural-to-dwelling, larger home extensions).
GPDO 2015 Parts 3, 4, 6, 20
Use these tools to determine whether you need planning permission and which type of application to submit. Getting the consent route wrong wastes time and money. Check PD rights first, then consider whether prior approval or full planning is the better option.
Guidance to help you prepare — not formal planning advice. Check the current policy text and your council's local plan before relying on it.