Find out about replacing your windows

Use this guide to find information on replacing windows.

Depending on the planning constraints on the property and the appearance of the proposed windows, you may or may not need planning permission from the council to replace the windows in your property.

Private beta for Lawful Development Certificates now live

As part of our commitment to design services that meet user needs, improve transparency and deliver value for money, our private beta tool is now live for Lawful Development Certificates (LDC) applications.

We would really like your help in trialling this new tool.  If you would like to try out the tool, please email providing an outline of the kind of LDC application you propose to submit.  For example, are you proposing a rear extension, or are you seeking to change your windows?

Whilst most types of LDC application routes have been built, there are some types of requests that the tool is not yet ready to process – the team will be able to advise this.

The tool is still in development - this means you may experience some glitches/issues.  Therefore, whilst things may not go perfectly, part of the aim of our private beta is to get real user feedback which we can feed into the design for further. 

You’ll receive an enhanced service by way of thanks and we will be on hand to help you with any issues/glitches – and collecting all of your feedback to improve future development. 

Find out more from our Show & Tell that we held shortly before our launch!

Better, Fairer Lambeth

Reducing Invalid Planning Applications project (RIPA) project website