What is a Lawful Development Certificate - Planning Information

Section 191 vs Section 192 Lawful Development Certificates | UK Planning Explained

This video was produced in June 2025
Are you unsure about the difference between a Section 191 and a Section 192 Lawful Development Certificate in the UK?

In this video, we explain everything you need to know about Lawful Development Certificates (LDCs) under the Town and Country Planning Act 1990—specifically:

What a Lawful Development Certificate is
The key differences between Section 191 (existing use or development) and Section 192 (proposed use or development)
When and why you might apply for each certificate
The importance of accuracy, detailed documentation, and strong evidence
Legal time limits for immunity from enforcement
Common scenarios for homeowners, landlords, and developers

Whether you’re building a home extension, regularising an old conversion, or changing the use of your property—this guide will help you navigate the process with clarity and confidence.

Who is this video for?

Homeowners planning renovations
Developers and landlords
Property investors
Planning consultants
Architects and designers

Need help with your Lawful Development Appeal or Application?

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Tell us which local authority refused your Lawful Development Certificate Application. This will help our Planning Case Assessment Officers look at the case documents in advance of your Free No Obligation Consultation.

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What was the application reference number, if you do not know this put in the first line of your address and postcode. This will help our Planning Case Assessment Officers look at the case documents in advance of your Free No Obligation Consultation.

Further Information

If you have further information that you feel we need to know at this stage please detail here.