2026-09-10 · Iowa · Legislation · Did not pass

A bill that would have kept fire sprinklers out of Iowa townhome construction cleared the Senate, cleared a House subcommittee, and then was never voted on. Senate File 2439 died at the second funnel on March 20, 2026. Its last recorded action is March 5, 2026: “Subcommittee recommends passage.”¹

What it would have done

Two things, aimed at the same result from both directions. The state building code commissioner would have been required to adopt, as part of the state building code, a prohibition on requiring a fire protection sprinkler system in a series of attached single-family residences totalling 18,000 square feet or less. And separately, no local building regulation could impose such a requirement on the same buildings.

In construction terms that is townhomes and rowhouses. In association terms it is the stock that most reliably ends up under a condominium or planned-community declaration — and where a sprinkler system, once installed, becomes a common-element component with inspection, testing and eventual replacement costs attached to it.

A three-year run at it

The bill has been introduced in three forms across two sessions. It began as SSB 1094 on February 4, 2025; a subcommittee recommended amendment and passage on February 12; it was renumbered SF 310 and placed on the Senate calendar on February 13, 2025 — and never debated. At 2025 sine die it was re-referred to Local Government.

It was revived on January 13, 2026. A subcommittee recommended passage January 20. The committee report of February 23 renumbered it SF 2439. Amendment S-5046 was adopted and the bill passed the Senate 30-14 on March 2, 2026.

It went to the House the same day, was referred to Local Government, and on March 5 the subcommittee — Determann, Wengryn and Zabner — recommended passage. The full committee never voted, and the second funnel took it on March 20.

The earlier 2025 drafting was built around residences of fewer than seven units; the 18,000-square-foot formulation is the amended 2026 text.

1. SF 2439 bill history, Iowa General Assembly (with SF 310 / SSB 1094 lineage) ↩
2. 2026 Iowa End of Legislative Session Report, Community Associations Institute ↩
3. Lobbyist declarations on SF 2439, Iowa General Assembly ↩