Community, Local Politics Opposition Grows to the Gardendale 5-mill Property Tax March 12, 2022 4:32 pm by Anthony Treye Hanner Views: 8 In 2013, two new taxes were approved in Gardendale. The first was a 5-mill ad valorem tax voted on and approved by the Gardendale City Council, Ordinance No. 2013-11, that taxed all property in the City of Gardendale “for public school purposes.”You've reached subscriber-only content Simply Register For Free Access Already a subscriber? Log in here.