Montana 2025 Regular Session

Montana Senate Bill SB532

Introduced
3/18/25  
Refer
3/20/25  
Engrossed
4/5/25  

Caption

Revise county zoning to allow accessory dwelling units

Impact

The passage of SB532 would significantly alter the regulatory landscape governing residential construction. Counties would be limited in their ability to impose additional requirements that might obstruct the development of ADUs, such as extra parking spaces, strict design matching, or specific occupancy conditions. Furthermore, the bill allows counties to charge a review fee for ADU applications, not exceeding $250. The legislation is poised to streamline the approval process for homeowners looking to expand their living space or create rental opportunities, potentially enhancing affordability and addressing the housing crisis in certain areas.

Summary

Senate Bill 532 aims to reform county zoning laws in Montana by mandating that counties permit the construction of accessory dwelling units (ADUs) on lots containing single-family homes. The bill stipulates that at least one ADU must be allowed 'by right,' meaning that no special permits or public hearings are needed for approval. This initiative is intended to address housing shortages and promote more inclusive living arrangements, particularly in urban areas where housing costs are rising. The ADUs can either be attached to the existing home, detached, or even within the primary dwelling, depending on specified size constraints.

Sentiment

The sentiment surrounding SB532 appears generally supportive among housing advocates and property owners looking for more flexibility in their residential space. Proponents argue that enabling ADUs will help alleviate some housing shortages by increasing the available housing stock without necessitating extensive new construction. However, there may be concerns among some local government officials about the loss of control over zoning policies and the potential impacts on neighborhood character and infrastructure.

Contention

Despite the positive outlook from proponents, there may be contention over the implications of the bill. Critics could voice concerns that such a policy might lead to overcrowding in certain neighborhoods, strain existing infrastructure, and diminish local governments' ability to address specific community needs. Additionally, there may be debates about how local jurisdictions can effectively balance property rights with the necessity of maintaining the quality and character of residential areas, particularly as more ADUs are introduced.

Companion Bills

No companion bills found.

Similar Bills

CA AB1154

Accessory dwelling units: junior accessory dwelling units.

CA SB9

Accessory Dwelling Units: owner-occupant requirements.

NJ A4370

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

NJ S2347

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

CA AB956

Accessory dwelling units: ministerial approval: single-family dwellings.

CA AB1055

Accessory dwelling units: proof of residential occupancy requirements.

NH HB577

Relative to modifying the definition of ADUs.

CA SB543

Accessory dwelling units and junior accessory dwelling units.