Iowa Code Title XIII. Commerce [Chs. 505-554D] § 544A.18. Exceptions

1. Detached residential buildings containing twelve or fewer family dwelling units of not more than three stories and outbuildings in connection with the buildings.

2. Buildings used primarily for agricultural purposes including grain elevators and feed mills.

3. Nonstructural alterations to existing buildings which do not change the use of a building:

4. Warehouses and commercial buildings not more than one story in height, and not exceeding ten thousand square feet in gross floor area; commercial buildings not more than two stories in height and not exceeding six thousand square feet in gross floor area; and light industrial buildings.

5. Factory built buildings which are not more than two stories in height and not exceeding twenty thousand square feet in gross floor area or which are certified by a professional engineer licensed under chapter 542B.

6. Churches and accessory buildings, whether attached or separate, not more than two stories in height and not exceeding two thousand square feet in gross floor area.