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Do I need planning permission for an orangery?

4 min read
Oct '25 • by Heather

Quick summary

You generally don’t need planning permission for an orangery if it’s single-storey, doesn’t extend beyond 4 metres for detached or 3 metres for semi-detached or terrace homes, takes up less than half the land, and stays within height and design limits. Exclusions include flats, maisonettes, listed buildings, and homes in conservation areas. Allow 8-10 weeks for admin and decision time.

If you’re looking to get a little more sun into your home, an orangery might be the perfect choice. However, like many construction projects, you might need to secure council approval before you bring this project to life.

To find out if your project will require planning permission, check out this advice from Resi’s own planning team…

Does your orangery fall under ‘permitted development’?

For many homeowners, planning permission might not be needed when it comes to creating an orangery.

This is all thanks to a government scheme known as ‘permitted development rights’. Essentially this entitles certain homeowners to extend their home, as long as their project falls under a strict set of criteria.

For an orangery, this criteria is…

  • Your structure doesn’t extend beyond the rear of the existing house by more than 4 metres, if your home is detached, and 3 metres, if you live in a terrace, or semi-detached property.
  • Takes up less than 50% of the size of the land around the original house ("original" being the latest of when the property was built or if it was built before 1948, then as it stood on 1st July 1948).
  • Is single-storey, with a maximum height of 4m.
  • Has a roof ridge or top point no higher than the eaves of your property’s roof.
  • And cannot include any verandas, balconies or elevated platforms.
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