Iowa 2025-2026 Regular Session

Iowa Senate Bill SSB1182

Introduced
2/25/25  

Caption

A bill for an act relating to county and city regulation of accessory dwelling units.(See SF 592.)

Impact

If passed, SSB1182 would significantly impact local zoning laws by limiting the ability of municipalities to impose restrictions on the construction and use of ADUs. Notably, counties and cities would be prohibited from implementing size limitations below 1,000 square feet for ADUs, imposing stricter aesthetic requirements, or enforcing additional parking mandates. This could enhance the feasibility of building ADUs and potentially invigorate urban neighborhoods by increasing the density of housing options without requiring extensive land development.

Summary

Senate Study Bill 1182 (SSB1182) aims to streamline the regulation of accessory dwelling units (ADUs) within Iowa by mandating that counties and cities permit at least one ADU on any lot containing a single-family residence. The bill establishes a framework under which these units must comply with existing building regulations, while preventing local ordinances from imposing more stringent restrictions than those applicable to single-family homes. This legislative initiative is designed to reduce bureaucratic red tape and boost housing availability through the encouragement of secondary units in residential areas, which is seen as a way to tackle housing shortages.

Contention

The bill could face opposition from those who advocate for local control and wish to maintain strict zoning laws to preserve neighborhood character. Some local governments may argue that SSB1182 undermines their authority to regulate land use in accordance with community standards. Additionally, concerns may arise regarding the impact of increased density on local infrastructure and services, such as waste management, road maintenance, and public safety. There is a potential tension between the benefits of increased housing supply and the desire of communities to manage growth according to their unique circumstances.

Companion Bills

IA SF592

Replaced by A bill for an act relating to county and city regulation of accessory dwelling units. (Formerly SSB 1182.) Effective date: 07/01/2025.

IA HF947

Replaced by A bill for an act relating to county and city regulation of accessory dwelling units.(Formerly HSB 162.)

IA HSB162

Related A bill for an act relating to county and city regulation of accessory dwelling units.(See HF 947.)

Previously Filed As

IA SSB3070

A bill for an act relating to county and city regulation of accessory dwelling units.(See SF 2369.)

IA HSB618

A bill for an act relating to county and city regulation of accessory dwelling units.(See HF 2252.)

IA HSB162

A bill for an act relating to county and city regulation of accessory dwelling units.(See HF 947.)

IA HF2252

A bill for an act relating to county and city regulation of accessory dwelling units.(Formerly HSB 618.)

IA HF947

A bill for an act relating to county and city regulation of accessory dwelling units.(Formerly HSB 162.)

IA SF2369

A bill for an act relating to county and city regulation of accessory dwelling units. (Formerly SSB 3070.) Effective date: 07/01/2026.

IA SF592

A bill for an act relating to county and city regulation of accessory dwelling units. (Formerly SSB 1182.) Effective date: 07/01/2025.

IA SB673

Relating to municipal and county regulation of accessory dwelling units; authorizing a fee.

IA HB2480

Relating to municipal and county regulation of accessory dwelling units; authorizing fees.

IA HB2783

Accessory dwelling units; population; regulations

Similar Bills

CA AB1154

Junior accessory dwelling units.

CA SB9

Accessory Dwelling Units: ordinances.

NJ A3488

Concerns development of accessory dwelling units and related municipal land use regulations.

CA AB2127

Accessory dwelling units: private sewage disposal systems.

CA AB956

An act to amend Section 50515.

CA AB1055

Accessory dwelling units: proof of residential occupancy requirements.

NH HB577

Relative to modifying the definition of ADUs.

AZ HB4028

accessory dwelling units; requirements