Check Your Permitted Development Rights
Free online tool to check if you can build extensions, loft conversions, and outbuildings without planning permission in England
We only use this information to provide your planning analysis and will not share it with third parties.
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Frequently Asked Questions
Important Legal Disclaimer
For Information Purposes Only
This tool provides general guidance based on publicly available data and should not be considered as professional planning advice, legal advice, or a substitute for official consultation with your local planning authority or qualified professionals.
No Liability
Multiply disclaims all liability for any loss, damage, costs, or expenses (whether direct, indirect, or consequential) arising from or in connection with your use of this tool or any decisions made based on the results. You use this service entirely at your own risk.
Data Limitations
Results are based on available public planning data which may be incomplete, outdated, or subject to change. Planning regulations, permitted development rights, and local restrictions can change without notice. Always verify current regulations with your local planning authority.
Professional Advice Required
Before proceeding with any building work, you must verify all information with qualified professionals including architects, planning consultants, structural engineers, and your local planning authority. Building regulations approval may be required regardless of permitted development status.
Coverage & Accuracy
This tool covers England only using English planning data sources. Accuracy cannot be guaranteed due to data source limitations, geocoding variations, and the complexity of planning legislation. Results should be independently verified before making any decisions.
Important Notice
Always consult with your local planning authority before beginning any building work. This tool cannot replace official planning advice or guarantee the accuracy of results. Building without proper permissions can result in enforcement action, fines, and requirements to demolish unauthorized work.