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Guides · 2026

Planning permission guides for London

These guides explain the key concepts behind planning permission and permitted development — and link you to borough and project pages when you are ready to check your specific property.

London Planning Permission: The 2026 Homeowner's Guide

A practical overview for London homeowners: when you need planning permission, how decisions are made, and how to de-risk your project early.

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Permitted Development in London: What You Need to Know

Understand Permitted Development rights, why they vary by property, and the most common reasons PD rights are restricted in London.

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Loft Conversion Rules in London: Planning vs. Permitted Development

What typically pushes a loft conversion from Permitted Development into planning permission, and what to check before you design dormers.

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© 2026 CanUBuild. All rights reserved.

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 Results are based on publicly available data which may be incomplete or out of date.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.