Before starting any building works you might need to get either planning permission or building regulations approval, or both.
Going ahead without could mean you have to pay to put things back to how they were, or you might have to fix issues to make them right.
You need building regulations approval to check the work you are doing is structurally safe, provides proper access and facilities, and meets certain energy efficiency standards.
You probably need building regulations approval for:
You should get approval before you start work otherwise you may have to fix any issues we find at your own expense.
View more information on building regulation approval on the GOV.UK website.
You will probably need planning permission if you want to:
You should check if you need planning permission.