You must supply the registration number(s) of your vehicle(s). Permits must only be used in the vehicles they were issued for.
There is no need to provide any official documentation to prove vehicle ownership.
You can apply for one visitor parking permit per property that allows your visitors short term parking on your street. Visitors permits must not be used in vehicles that are permanently registered to the application address.
Visitor permits can be used in any vehicle you do not need to provide a registration number when you apply.
If you do not need a first or second resident permit but need a permit for your visitors, you can apply for a Visitor Only permit.
If you have a Visitor Only permit, you cannot apply for other permits to be issued to you while this permit remains valid.