(a) Property in a zone is not exempt under this section from the following:
(1) special assessments;
(2) ad valorem property taxes specifically levied for the payment of principal and interest on debt obligations; and
(3) all taxes levied by a school district, except school referendum levies as defined in section 126C.17.
(b) The city may limit the property tax exemption to a shorter period than the duration of the zone or to a percentage of the property taxes payable or both.
Property exempt under this section is included in the net tax capacity for purposes of computing aids under chapter 477A.
(a) For purposes of this section, the following terms have the meanings given.
(b) "Qualified property" means class 1, 3, 4, and 5 property as defined in section 273.13 that is located in a zone and is newly constructed after the zone was designated, including the land that contains the improvements.
(c) "Zone" means a border city development zone designated under the provisions of section 469.1731.
The exemption under this section is available to a parcel only if the municipality determines that the granting of the tax exemption is necessary to enable a business to expand within a zone or to attract a business to a zone.