Karen is right, the records are not on-line yet, we're hoping! That said, they have just done a property revaluation and the new values are on-line at http://www.claycountypropertycards.com/. These are the values that were mailed to all of us recently and what they will use for 2010 through 2017. It doesn't give you the old values and it doesn't give you the new value if it was appealed, but it may give you what you're looking for. Hope this has helped.
You have to call the tax office at 828-389-1266 or email them at email@example.com . They are real profecient at getting to you the information you request. They will fax it to you or mail it to you. There is not yet a website where you can go online and obtain what you need.