Planning validation requirements

Planning validation requirements

On this page you can find information to help you submit a valid planning application.

You must include all the necessary information with your planning application. If you do not, your application cannot be validated. When an application is received, we give it a quick check and then prioritise the potentially valid applications.

Our local requirements list clarifies what information is required for applications of a particular type, scale or location. This list is in line with the Government’s national requirements. Our local list has recently been updated to include a new requirement under “general requirements for all plans”, which states that wherever possible, plans greater than A3 in size should not be submitted.

We also have specific guidance for applications for windows and checklists which will help you submit a valid application.

On 1 October 2016 the Mayor of London applied new carbon standards to new residential and non-residential developments that might be applicable to your application.

If you have not received an acknowledgement letter or an invalid letter within two weeks of submitting your application, please contact our Business Support Team on 020 8314 7400 or email Please note that if your application is found to be invalid you will be given 21 days in which to make it valid. After that, it will be withdrawn.

Validation requirements from March 2018

Validation requirements changed in March because of recent changes in policy, guidance and legislation. The new requirements apply to all applications submitted from 1 March 2018.

You can see the new validation requirements below.

Helpful information

The government's Planning Practice Guidance website provides a list of the most common national information requirements to help you submit a valid application.

The following planning applications are examples of good quality planning application drawings. You will find site plans, block plans, plans, elevations, and sections among others:

Planning validation requirements from March 2018


Planning validation forms and guidance