Lawful development certificate for a proposed use or development

Important notes

An application to certify that a proposed use or development is lawful. For peace of mind that a proposed use of a building is lawful or that the proposal doesn't require planning permission, you can apply for a lawful development certificate. Find out more about LDCs

Applications for a lawful development certificate should be submitted in accordance with the requirements in this checklist. If not, the application may be declared invalid and not determined or processing may be delayed.

If the application is submitted electronically one copy of the form and each of the drawings, plans and documentation will be required but 2 copies (1 original and 1 copy) will be required if the application is submitted in paper form.

Drawings should include information clearly stating the original size of the paper and include a scale bar indicating a minimum 0-10 metres. This is to enable them to be accurately read online. Plans marked with "do not scale" or any similar phrase will be returned as unacceptable as for planning purposes we must be able to scale from all drawings.

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National requirements

  • Completed application form.

  • Plan identifying the land to which the application relates at a scale of 1:1250 or 1:2500 and showing the direction of north.

  • Evidence to verify the information included in the application and other information relevant to the application. Detailed documentation required to help substantiate that the proposed use or operational development is lawful. If application seeks to confirm that a proposed use will not be materially different to an existing use or will be within the same use class, then first need to establish that the existing use is lawful.

  • The appropriate fee.

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Local requirements (reviewed 12 September 2014)

  • Planning statement. To support the case for the proposed use or development, at the applicant's discretion.

  • Site plan at at a scale of 1:200 or less (i.e. 1:100) with a north point showing the proposed development in relation to the site boundaries, and other existing buildings on site with written dimensions including those to boundaries and the following unless these would not influence or be affected by the proposed development:
  • all the buildings, road and a footpath on land adjoining the site including access arrangements

  • all public rights of way crossing or adjoining the site

  • the position of all trees on the site and those on adjacent land

  • the extent and type of any hard surfacing and

  • boundary treatment including walls or fencing where this is proposed.

  • Existing and proposed elevations at a scale of 1:50 or 1:100.

  • Existing and proposed floor plans at a scale of 1:50 or 1:100.

  • Existing and proposed site sections and finished floor and site levels e.g. at a scale of 1:50 or 1:100.

  • Roof plans e.g. at a scale of 1:50 or 1:100.

  • CIL additional information form (where applicable)

  • CIL assumption of liability form (where applicable)

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Apply online

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Printable application form

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Guidance on completing application form

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