What is permitted development?

A set of rules that allow some types of work without a full planning application, provided you stay within the limits and conditions. The rules vary by location and property type.

Do I need building regulations approval if I do not need planning permission?

Possibly. They are separate systems, so check both with your council or a qualified professional.

What if I live in a conservation area?

Extra restrictions often apply, so check with your local council before you plan any exterior changes.

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How to find out if you need planning permission

By the GlowUpp team · 27 October 2026

A tired grey house front next to an AI redesign with white render and a navy front door

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An AI-generated example. Real results depend on your own space.

Whether you need permission depends on what you are doing and where you live. It is worth checking early, because starting work without a required permission can cause serious problems later, including when you come to sell.

Planning permission and building regulations are different

Planning permission is about what you build and how it affects the area. Building regulations are about whether the work is safe and meets technical standards. A project can need one, both or neither.

Permitted development

Many smaller projects fall under permitted development, which means you do not need to apply for full planning permission, as long as you stay within certain limits. The rules have conditions and are different in different parts of the UK, so check yours instead of assuming.

Where you live matters

Conservation areas, listed buildings and some protected areas have extra restrictions.
Flats and maisonettes often do not have the same permitted development rights as houses.
Some properties have rights removed, so check your title documents or ask the council.
If you rent or own a leasehold, you may need permission from the landlord or freeholder too.

How to check

Use the official Planning Portal for guidance on your type of project.
Contact your local council's planning department. Some offer a pre-application service.
Ask your architect, designer or builder, but still confirm anything important with the council.
For some projects you can apply for a lawful development certificate, which is formal confirmation that your plans are allowed.

Get it in writing

Keep copies of any permission, certificate or written advice. Ask your builder to confirm who is responsible for applications and for the completion certificates.

Mistakes to avoid

Assuming a neighbour's project means yours is fine too.
Starting work before you have the permission you need.
Forgetting about building regulations because planning is not needed.

Ideas first, rules second

See ideas for your home with a GlowUpp redesign, then check what is allowed before you commit. A redesign image does not mean a change is permitted. Always ask a qualified professional before moving gas, electrics or plumbing, or changing anything structural, and check your lease or local rules if you rent or live in a conservation area.

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Common questions

What is permitted development?: A set of rules that allow some types of work without a full planning application, provided you stay within the limits and conditions. The rules vary by location and property type.
Do I need building regulations approval if I do not need planning permission?: Possibly. They are separate systems, so check both with your council or a qualified professional.
What if I live in a conservation area?: Extra restrictions often apply, so check with your local council before you plan any exterior changes.