change of use

In London, Airbnbs need planning permission after 90 nights. Outside London, the material change of use test applies. Article 4 directions, enforcement, and what to do if no application has been submitted — the complete UK guide for neighbours.

From shops to takeaways to sui generis uses — tie comments to use class, highways, amenity, and local policy.

How to object to an HMO planning application: C4 vs sui generis, Article 4 directions, highways and parking evidence, amenity grounds, and family housing supply arguments — England.

Use classes, permitted development limits, and Article 4 directions — where to read official rules.

Understand when changing how a building or land is used requires planning permission, how the Use Classes Order works after the 2020 reforms, and what grounds support an objection.