With your storage unit there are 2 kinds of agreements to choose from:

Self Storage Agreement:

Hire a Storage Unit which you may access at your leisure.
You are required to provide your own padlock and key or purchase one from CBD Storage Sydney, Self Storage units are charged at regular fee based on the size of the Storage unit.
Just like renting your own space in the city.

Managed Storage Agreement:

You are provided with a storage unit which may be accessed by both you and CBD Storage Sydney staff.
CBD Storage Sydney is able collect items from you and place them directly into your storage as well as retrieve labelled items from storage and deliver them to you.
CBD Storage Sydney is also able to accept posted deliveries and place them directly into storage.

These documents are available in pdf form here.