Guidance, criteria and forms for Lawful Development Certificates can be found below.
If you want to be certain that the existing use of a building is lawful for planning purposes or that your proposal does not require planning permission you can apply for a 'Lawful Development Certificate' (LDC). It is not compulsory to have an LDC but there may be times when you need one to confirm that the use, operation or activity named in it is lawful for planning control purposes.