ePrivacy and GPDR Cookie Consent by Cookie Consent Why your local authority matters when extending

Why your local authority matters when extending

3 min read
Oct '25 • by Ellie Manifold

Quick summary

Your local authority matters because they control planning permission and applications for home extensions, especially if you’re adding to the external appearance or living in a conservation area. They usually decide within eight to thirteen weeks and base their decision on factors like building size, impact, and infrastructure. Contacting them early helps ensure your project runs smoothly.

If you’ve decided to take the plunge into extending your home, there’s someone (or some people) you’re going to have to become very acquainted with - your local authority.

Your local planning authority is the body that oversees what builds, extensions, and home renovations occur in your area. Think of them as the gatekeepers of home improvement.

So how will your local authority affect your project? Find out here...

When do you need to contact your local authority?

You’ll need to get in touch with your local authority for both planning permission and when using your permitted development rights. Though your permitted development rights allow you build up to a certain point, you’ll still need a lawful development certificate if you want to sell your home down the line.

With this in mind, you’ll have to contact your local authority if you plan on doing work to the external appearance of your home. This includes: extensions, new windows, new doors, and sometimes even adding a satellite dish.

How vigilant and strict your local authority is will depend on whether or not you live in a conservation area. If you do live in a conservation area, you’ll find you’re much more restricted in what you can do with your property. Yet don’t despair, a good architect will be able to work with your local authority to still get you a great design, even with limitations.

How much does an architect charge?