Tenn. Code Ann. § 7-31-108

When the owner of the land through which any street, alley, or park is to be extended or established requires compensation or damages for the extension or establishment, the legislative body of such municipality shall, by ordinance or resolution, appoint freeholders, not exceeding seven (7) in number, who after first being duly sworn, shall examine the premises and assess the damages or compensation, and report the damages or compensation to the mayor and aldermen or the legislative body of the municipality, which body shall cause the report to be spread upon its minutes with its action on the assessment.