Permitted conservatory size

How large can a conservatory be before planning permission is necessary? Does it vary for height, length, width or is it based on area alone?

Asked by Patrick on 16th Feb 2021
Expert Trade Answers
"Single storey extensions the rules are a lot more relaxed now pretty sure it’s up to 30m2 now without planning will still need building regs though but any decent builder comply with them anyways"
Answered on 16th Feb 2021 - Member since Jan 2021 - report
"The possible size of your conservatory depends on the size of the property that you're extending. To build without the need for planning permission, a conservatory can't be any bigger than 50% of the area around the original house (including sheds and outbuildings)."
Answered on 3rd Oct 2021 - Member since Sep 2018 - report
"If there is something in place and you are taking down and replacing like for like then you don’t need planning"
Answered on 16th Feb 2021 - Member since Feb 2021 - report
"You are allowed a 30 volume size conservatory which is a 4+3 size thanks."
Answered on 27th Feb 2021 - Member since May 2020 - report
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