Where can I find the map of my property?

[Maria G.]

Hello,

I am looking at the purchase papers and all I see is in the title a section called "exhibit A" that tells me that it is "Lot XX, as shown on the plat of <name of association> recorded in Book 26-B, recorded in Book YYY of Maps, Map No. ZZZ, records of said County." 

I contacted the planning division of the city this rental belongs to and they told me what they see in their documents, but they warned me it is just approximate. Where can I find a copy of the actual map? 

Thanks.