- Project plans
- Project activities
- Legislation and standards
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Last edited 15 Oct 2020
Lawful development certificate
If there is doubt about whether an existing use of a site or building is permitted under planning law, or if a proposed development requires planning permission, an application can be made for a Lawful Development Certificate (LDC), or Certificate of Lawfulness.
This may be useful, for example, when negotiating the sale of a property, when it may be necessary to demonstrate that a development has all the necessary permissions, or when determining whether proposals are ‘permitted developments’ for which a planning application is not required.
An application for a Lawful Development Certificate can be made to the local planning authority. The application should include enough information to enable the local planning authority to determine whether the development is in fact lawful or not. It can be wise to consult with the local planning authority before making an application to discuss whether the application is likely to be successful and what information is required.
If the application is refused, the applicant can appeal to the planning inspectorate.
 Related articles on Designing Buildings Wiki
- Certificate of Lawfulness of Proposed Works.
- Certificates in the construction industry.
- Development Management Procedure Order.
- Established use certificate.
- Permitted development.
- Planning authority.
- Planning inspectorate.
- Planning permission.
- Site selection and acquisition.
- Sui generis and planning permission.
- Technical due diligence for development sites.
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