When lien attaches.

Iowa Code § 420.234, under SPECIAL CHARTER CITIES.

Iowa Code § 420.234

All of such taxes shall remain a lien on the property aforesaid from and after the date of the levy in each year, except as provided in section 420.231 , with respect to the lien of personal property taxes on real estate. [C97, §1015; C24, 27, 31, 35, 39, § 6883; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §420.234 ]