- Project plans
- Project activities
- Legislation and standards
- Industry context
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.
An application fee is payable to the local planning authority.
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.
Featured articles and news
Gaining green support from the carbon giants.
Medieval passageways with spiritual, transport and economic purposes.
Organisation receives accreditation from Investors in People.
Click the button to subscribe.
Communicating the right information at the right time.
Materials can take on different properties to control heat and glare.
Challenges in the construction sector and beyond.
Exploring brick and timber construction techniques.
On wheels or on platforms, micro dwellings are popping up everywhere.
Landlords must now comply with new repair regulations.
You can add articles and help improve knowledge in the construction industry.
Ayo Sokale explains the struggles of being neurodiverse.
Communities, heritage and architecture. Book review.
The voluntary sector continues to shape the debate.