A bill for an act relating to fire protection sprinkler systems in certain residential properties.

SF 2439 prohibits local building codes from requiring fire sprinkler systems in new attached single-family homes of 18,000 square feet or less and new detached single-family homes of 6,500 square feet or less. The bill mandates that the state building code must include this prohibition, overriding any local regulations that might have required sprinklers in these specific property types. It directly affects homeowners and builders constructing qualifying small single-family residences in Iowa by eliminating a mandatory sprinkler system requirement. The policy change simplifies building code compliance for these properties without altering fire safety standards for larger residential developments.