Write a letter to a state agency, like the DMV, or voter registration, that will require an answer from them. Deed or title to residential real property.A proof of address is a document that confirms where you live. It typically includes your full name and residential address and can come in various forms. You can use the bank statement, but you will need one more document—two are required, unless you have an existing California driver's license. Check mark the TWO different documents below that you'll use as your proof of California residency. Home utility bill or cellular phone bill (Preferred)