Planning Permission for an Orangery – What You Need to Know

If you are thinking about adding an orangery, one of the first things to check is whether you need planning permission. The answer depends on your home, the size of the build, and your location. This guide explains when permission is required, what the rules are, and how to avoid delays.

Do you need planning permission for an orangery?

In many cases, orangeries can be built under permitted development rights. This means you do not need to apply for full planning permission if the design meets certain size and placement limits.

However, if your property is listed, in a conservation area, or has planning restrictions in place, you may still need approval. It is always best to check with your local planning authority before starting work.

Permitted development rules

To qualify as permitted development, an orangery must:

• Not extend beyond the rear wall of the original house by more than four metres for a detached house or three metres for any other house.

• Cover no more than 50% of the land around the original house.

• Be no higher than four metres, or three metres if it is within two metres of a boundary.

• Have eaves that do not exceed the height of the existing house.

If your design goes beyond these limits, planning permission will be required.

When permission is likely to be needed

Listed buildings

All changes to listed properties require both planning permission and listed building consent.

Conservation areas

In conservation areas, permitted development rights can be reduced or removed entirely. Even small orangeries may need approval.

Converting a conservatory to an orangery

If you are replacing a conservatory with an orangery, you may need permission if the size, height, or footprint changes significantly.

Applying for planning permission

If you do need permission, you will need to submit detailed plans to your local council. The application process usually takes around eight weeks for a decision.

Working with an experienced installer can make the process smoother. They can prepare accurate drawings and specifications that meet local regulations.

Building regulations approval

Even if planning permission is not required, building regulations will almost always apply. These ensure your orangery is structurally sound, energy efficient, and safe to use year-round.

How to avoid delays

• Confirm planning requirements early.

• Keep your design within permitted development limits where possible.

• Allow extra time if your home is listed or in a conservation area.

• Use an installer familiar with local planning rules.

Why permissions matter

Building without the right approvals can lead to enforcement action. In some cases, you could be told to remove the structure. Securing permission ensures your orangery can be enjoyed without future legal issues.

Glass House Architecture designs everything from elegant english conservatories to modern glass house extensions. Our expertise means we can guide you through the entire process, including planning.

The benefits of a traditional hardwood orangery go beyond beauty. With the right permissions in place, it becomes a lasting and valuable part of your home.