How do you find a CO in FL?

[Ralph Chiaia]

Does anybody know how I can find a certificate of occupancy for a Florida address? I'm looking for a property in Duval County. I am currently trying the Duval County Clerk's office but banking my head against the wall. 

I found a property that's listed different on zillow v. property shark. I'm trying to value it and if it's a 4 family it's worth a different amount than if it's a 2 family. Any help would be greatly appreciated. I feel like I should already know how to check this, but I don't.