FREE PLANNING TOOLS · ENGLAND

Which planning route should I explore?

A short guide to your next conversation, based on the information you have.

Is the property in England?Property typeHas the work started?What is the proposal?Any listed status, designated land, Article 4, removed PD rights or a home created through conversion rights?Previous extensions to the original house?

An introductory route guide. Depth alone does not decide eligibility: heights, boundaries, materials, site coverage and other legal conditions still need checking.

No email address needed. Your answers stay in this page.

YOUR RESULT

A clearer starting point.

Complete the questions to see your result and the next step.

BEFORE YOU RELY ON A ROUTE

Check the whole proposal.

Permitted development is subject to detailed limits and conditions. The guide highlights a route to investigate; it does not confirm permission, lawfulness or an entitlement to begin work.

For a single-storey rear extension, the general depth limits differ for detached and other houses. A larger-home-extension prior approval route may be relevant for some proposals. Previous extensions and restrictions can change the position.

References checked 23 October 2026: Planning Portal — extensions and GOV.UK — lawful development certificates. We review drawings, planning history and local constraints before recommending an application.

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