724.28 Prohibition of Regulation by Political Subdivisions.
A Political Subdivision of the State shall not enact an Ordinance Regulating the Ownership, Possession, Legal Transfer, Lawful Transportation, Registration, or Licensing of Firearms when the Ownership, Possession, Transfer, or Transportation is otherwise Lawful under the Laws of this State. An Ordinance Regulating Firearms in Violation of this Section existing on or after April 5, 1990, is void.
90 Acts, ch 1147, §9
724.4 Carrying Weapons.
1. Except as otherwise provided in this Section, a Person who goes Armed with a Dangerous Weapon Concealed on or about the Person, or who, within the Limits of any City, goes Armed with a Pistol or Revolver, or any Loaded Firearm of any kind, whether Concealed or not, or who knowingly Carries or Transports in a Vehicle a Pistol or Revolver, commits an Aggravated Misdemeanor.
In reference to Municipal Buildings Gun Bans throughout West Burlington:
Although West Burlington is a City, and therefore 724.4 applies, Persons with Permits are exempt from 724.4, by its own terms.
West Burlingtons' Ordinance is, thus, Unlawful (for Persons with Permits) , as 724.28 Preempts West Burlingtons Regulation of Firearms by License holders.
Iowa is now, thanks to Iowa Carry Inc., a 'Shall Issue' State, for Nonprofessional Permits.