Certificate of lawful development application

[Wilchi]

I’ve joined this forum hoping someone may be able to help me with with some of the questions that are confusing me on my Certificate of lawful development application. I’ve  filled in most of the questions and uploaded the documents required but I’m struggling with what to put for these 2 questions. It’s for a single storey rear extension

1. Under the upload plans and documents section it says verification of application evidence. Can anyone tell me what I need to upload for this

2.  Under grounds for application it asks “Please explain why you consider the existing or last use of the land is lawful, or why you consider that any existing buildings, which it is proposed to alter or extend are lawful”

Im not sure what I need to put here

Any advice would be extremely helpful 

Many thanks

[Temp]

Replied here..

https://forum.buildhub.org.uk/topic/25682-certificate-of-lawful-development-application/