(a)
(1) When the city council shall have laid off zones, it shall not be lawful for anyone to construct or carry on within a given zone any business not authorized by the ordinance of the city establishing it, unless with special permission granted by the council of the city, or by a commission which it may create for the purpose of determining whether an exception shall be made, in the particular instance.
(2) Exceptions shall be made only for good cause.
(b) In case of abuse, the adjacent property owners shall have the right to appeal to the courts of chancery to protect their property from depreciation by reason of the setting up of exceptional business within the zone.