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MontanaSB 24369th Legislature, Regular Session (2025)Senate

Amend zoning regulations to allow taller buildings

Sponsored By: Ellie Boldman (Democrat)

Signed by Governor

PlanningCities and TownsBuildings and Building Regulations

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Bill Overview

Analyzed Economic Effects

2 provisions identified: 2 benefits, 0 costs, 0 mixed.

Cities allow apartments, cap parking, taller buildings

Beginning Oct 1, 2026, these rules apply in cities the U.S. Census lists as an urban area with over 5,000 people. Cities must allow apartments and mixed-use buildings on commercial lots with will-serve letters from both municipal water and sewer. Cities cannot require more than one off-street parking space per apartment. ADA-required accessible spaces still apply, and shared parking agreements can count. In downtown commercial, heavy commercial, and industrial zones, cities cannot cap building height below 60 feet.

Cities must allow duplexes in neighborhoods

Beginning Oct 1, 2026, any city with at least 5,000 people must allow duplexes wherever it allows single-family homes. Duplex rules cannot be stricter than the rules for single-family homes.

Sponsors & Cosponsors

Sponsor

  • Ellie Boldman

    Democrat • Senate

Cosponsors

  • Kenneth Bogner

    Republican • Senate

Roll Call Votes

All Roll Calls

Yes: 360 • No: 139

Senate vote • 4/17/2025

Do Pass

Yes: 41 • No: 9

Senate vote • 4/16/2025

Do Pass

Yes: 38 • No: 12

House vote • 4/11/2025

AMD-SB0243.003.001 Powers DO PASS

Yes: 33 • No: 67

House vote • 4/11/2025

Do Concur

Yes: 76 • No: 23

House vote • 4/11/2025

Do Concur

Yes: 79 • No: 21

Senate vote • 3/1/2025

Do Pass

Yes: 47 • No: 3

Senate vote • 2/28/2025

Do Pass

Yes: 46 • No: 4

Actions Timeline

  1. Chapter Number Assigned

    5/16/2025Senate

  2. Signed by Governor

    5/13/2025Senate

  3. Transmitted to Governor

    5/5/2025Senate

  4. Signed by Speaker

    5/5/2025House

  5. Signed by President

    4/29/2025Senate

  6. Returned from Enrolling

    4/20/2025Senate

  7. Sent to Enrolling

    4/17/2025Senate

  8. 3rd Reading House Amendments

    4/17/2025Senate

  9. 2nd Reading House Amendments

    4/16/2025Senate

  10. 2nd Reading Pass Consideration

    4/15/2025Senate

  11. Returned to Senate with Amendments

    4/11/2025House

  12. 3rd Reading

    4/11/2025House

  13. 2nd Reading

    4/11/2025House

  14. 2nd Reading Motion to Amend

    4/11/2025House

  15. Committee Report

    4/9/2025House

  16. Committee Executive Action

    4/8/2025House

  17. Hearing

    3/7/2025House

  18. 1st Reading

    3/3/2025House

  19. Referred to Committee

    3/3/2025House

  20. Transmitted to House

    3/1/2025Senate

  21. 3rd Reading

    3/1/2025Senate

  22. 2nd Reading

    2/28/2025Senate

  23. 2nd Reading Pass Consideration

    2/26/2025Senate

  24. Committee Report

    2/25/2025Senate

  25. Committee Executive Action

    2/24/2025Senate

Bill Text

  • Enrolled

    4/17/2025

    PDF

  • As Amended (Version 3)

    4/9/2025

    PDF

  • As Amended (Version 2)

    2/25/2025

    PDF

  • Introduced

    1/30/2025

    PDF

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