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.
An application fee is payable to the local planning authority.
If the application is refused, the applicant can appeal to the planning inspectorate.
[edit] 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.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
The Building Safety Regulator announces a call for evidence.
Government approach could undermine delivery and regeneration.
World's first mass timber data centre.
The overlooked environmental aspect of data centre development.
Introduction to radon awareness
New technical information sheet published by CIOB.
Updated supplier guide can help electrical contractors engage with NHP.
CIAT confirm the winners of the 2026 architectural technology awards.
Government launches a one stop shop for flood preparedness.
Sir Edwin Lutyens: Britain's greatest architect? Book review.
CIOB publishes free template to help assess and manage risks.
ECA's reflections on Party Conference season
Burnham wants to be confident of winning before asking for a fresh mandate.
New Chief Construction and Scientific Adviser
Sergio Cavalaro, Professor of Infrastructure Systems at Loughborough University.
Building safety levy for England
CIAT publish estimator tool for members.
















