---
type: "Bill"
title: "A bill for an act relating to county and city regulation of accessory dwelling units."
description: "A bill for an act relating to county and city regulation of accessory dwelling units."
jurisdiction: "us/states/ia"
legislature: "Iowa General Assembly"
session: "2025-2026"
identifier: "SF 592"
citation: "Iowa SF 592 (2025-2026)"
classification: ["bill"]
subjects: ["buildings", "city government", "county government", "housing", "manufactured homes", "mobile homes", "residence", "residential property", "utilities", "zoning"]
status: "enacted"
primary_sponsors: []
version_count: 4
action_count: 14
vote_count: 2
first_action: "2025-03-10"
last_action: "2025-05-01"
source: "openstates"
source_identifier: "ocd-bill/f11b5718-d2ee-452c-99e9-17e9dea36ee7"
source_url: "https://www.legis.iowa.gov/legislation/billTracking/billHistory?billName=SF 592&ga=91"
source_hash: "a3963c2f444b8afd96467aac59366d271eefaf09032f013d2e18c6c3608c7f75"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ia"]
---

# Iowa SF 592 (2025-2026) — A bill for an act relating to county and city regulation of accessory dwelling units.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](https://www.legis.iowa.gov/docs/publications/LGI/91/attachments/SF592.html)
2. **Enrolled with Governor's Action** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGEG/91/attachments/SF592.html)
3. **Signed Enrolled Bill (PDF)** (committee substitute) — [source](https://www.legis.iowa.gov/docs/publications/LGE/91/Attachments/SF592_GovLetter.pdf)
4. **Enrolled** (enrolled) — [source](https://www.legis.iowa.gov/docs/publications/LGE/91/attachments/SF592.html)

## Votes

- Shall the bill pass? — **89–7** (pass) · lower
- Shall the bill pass? — **49–0** (pass) · upper

## Sponsors

- COMMITTEE ON LOCAL GOVERNMENT — primary (organization)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2025-03-10** Introduced, placed on calendar. `introduction`
- **2025-03-10** Committee report, approving bill. `committee-passage`
- **2025-03-25** Passed Senate, yeas 49, nays 0. `passage`
- **2025-03-25** Immediate message.
- **2025-03-25** Message from Senate.
- **2025-03-26** Read first time, passed on file. `reading-1`
- **2025-04-03** Placed on calendar under unfinished business.
- **2025-04-08** Substituted for HF 947.
- **2025-04-08** Passed House, yeas 89, nays 7. `passage`
- **2025-04-24** Explanation of vote.
- **2025-04-08** Immediate message.
- **2025-04-08** Message from House.
- **2025-05-01** Reported correctly enrolled, signed by President and Speaker, and sent to Governor.
- **2025-05-01** Signed by Governor. `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/f11b5718-d2ee-452c-99e9-17e9dea36ee7`. Confidence: reported (aggregated from official Iowa legislature records).