Tenn. Code § 29-17-910
In all instances the amount to which an owner is entitled shall be determined by ascertaining the fair cash market value of the property or property rights taken and adding to the same the amount of incidental damage done to the residue of the owner's property, if any, after deducting from the incidental damages to the residue the value of all special benefits, if any, occasioned such residue by the construction of such street, road, highway, levee, ditch, drain, watercourse improvement (when such levee, ditch, drain, or watercourse improvement is condemned pursuant to § 29-17-901(a)(2)), freeway or parkway including, but not limited to, increased accessibility to the owner's property, greater convenience in the approach with vehicles, the advantages generally of a front on a more desirable roadway, better drainage, or increased attractiveness.
T.C.A. § 29-17-910