Planning Permission Orangery: What You Need to Know Before Building
When you think of an orangery, a glass-walled extension designed to bring light into a home while offering a comfortable indoor-outdoor space. Also known as a glasshouse extension, it's more than just a sunroom—it's a permanent structure that can add value, but also triggers strict rules under UK building regulations.
Not every orangery needs planning permission, but most do if they’re large, attached to the main house, or sit on the front of your property. The key difference between an orangery and a conservatory? Orangeries usually have a solid roof with a central glass panel and more brickwork. That makes them fall under different rules than glass-only extensions. If your orangery covers more than half your garden, or rises higher than the highest part of your existing roof, you’re likely in planning territory. Even if you’re within permitted development limits, you still need to follow building regulations for insulation, structural strength, and fire safety. Many homeowners assume they’re fine because they’re replacing a patio or extending a kitchen—but councils don’t care about your reasons. They care about size, location, and materials.
There’s no one-size-fits-all answer. A small orangery tucked behind your house, under 4 meters high, and not facing the road might fly under the radar. But if you live in a conservation area, listed building, or national park, you’ll need approval no matter how small. And don’t forget: even if you don’t need planning permission, you still need to notify your local authority for building control. Skipping this step can kill your property sale later. You’ll also want to check if your property has an Article 4 direction—some neighborhoods remove permitted development rights entirely. It’s not about being tricky. It’s about being smart. A few hours spent checking your local council’s website now can save you thousands in fines or forced removals later.
The posts below cover real cases, common misunderstandings, and practical tips from people who’ve been through it. You’ll find guides on designing an orangery that fits your space, what materials councils accept, how to submit a lawful development certificate, and even how to talk to neighbors before you start. Whether you’re planning a cozy morning nook or a full garden room, this collection gives you the facts—not the fluff.