As long as you meet certain requirements, and stay within specific restrictions, you can carry out external alterations and some extensions to private houses (not flats) without needing formal planning permission.
Unless the property is a listed building, you don't need planning permission if you are:
You may need planning permission if you are:
Some developments need special consents as well as, or instead of, planning permission:
To find out whether applications are required under the Town and Country Planning Acts, you can submit a Householder Enquiry Form, the charge for HEF's is £60 including VAT.
You will probably need Building Regulations approval for most works or changes of use that you carry out to a building.
It is useful to have written confirmation that your proposal doesn't need any of these consents, especially when it comes to selling your property. This confirmation shows any prospective purchaser that you haven't carried out any unauthorised work. Find out more about building control.