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Planning permission by project type

These pages cover the most common home projects in England and the typical triggers that move a scheme from permitted development into planning permission.

Rear Extension Planning Permission

When rear extensions are permitted development, when planning permission is more likely, and what to check first.

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Loft Conversion Planning Permission

How roof alterations, dormers, and constraints like conservation areas affect the planning route for loft conversions.

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For guidance purposes only. Results are based on publicly available data which may be incomplete or out of date. This tool does not constitute formal planning advice or a pre-application response. Always verify with your local planning authority and consult a chartered planning consultant before making decisions.