You can apply for a Lawful Development Certificate to confirm that:

  • your proposed work does not need planning permission, or
  • work you have already started or completed is lawful

You can look at the Planning Portal for more information about Certificates of Lawfulness.

Appy for a certificate for proposed or existing works

Apply now

To apply for a Lawful Development Certificate, you must provide: 

  • your name, address and contact details
  • your email address
  • the address of the property you are applying about, if different to your address
  • a written description of the work that has been carried out, including measurements and plans

To support your application, we recommend you also provide: 

  • a block plan, including the scale (for example, 1:200 or 1:500)
  • a site location plan, including the scale (for example, 1:1250)
  • sketch drawings
  • photographs of the site
  • the reasons why you consider the development is lawful
  • any evidence you have to support your claim that a development is lawful

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Last updated: 21 September 2022