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IdahoH 07072026 regular legislative sessionHouse

MUNICIPAL CORPORATIONS – Adds to existing law to provide for an administrative process for certain land divisions.

Sponsored By: BUSINESS COMMITTEE

Signed by Governor

MUNICIPAL CORPORATIONS

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Bill Overview

Analyzed Economic Effects

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

Easier ADU lot splits for financing

Beginning July 1, 2026, the law lets cities or counties offer an administrative way to split a lot with an existing or approved accessory dwelling unit. You must have a letter from a lender or underwriter that the split is required for a mortgage or financing. This avoids a full subdivision plat. Each resulting parcel must have legal access and utilities that meet local rules. The split must be recorded with the county, with a notice that limits future division or development.

ADU financing splits face strict limits

Beginning July 1, 2026, an administrative split is for financing only. It cannot create extra homes or raise density beyond zoning. The split attaches to the original parcel and the limits run with the land. Neither new parcel can be split again under this process, and serial reconfigure-and-resplit tactics are banned. The process cannot bypass farm protections or create building lots that break local zoning.

Sponsors & Cosponsors

Sponsor

  • BUSINESS COMMITTEE

    Affiliation unavailable

Cosponsors

  • Ben Toews

    Republican • Senate

  • Josh Wheeler

    Republican • House

Roll Call Votes

All Roll Calls

Yes: 96 • No: 2

Senate vote • 3/24/2026

Senate Floor Vote

Yes: 32 • No: 2

House vote • 3/9/2026

House Floor Vote

Yes: 64 • No: 0

Actions Timeline

  1. Reported Signed by Governor on March 26, 2026 Session Law Chapter 170 Effective: 07/01/2026

    3/30/2026

  2. Delivered to Governor at 12:58 p.m. on March 26, 2026

    3/26/2026

  3. Returned Signed by the President; Ordered Transmitted to Governor

    3/26/2026Senate

  4. Signed by President; returned to House

    3/25/2026Senate

  5. Received from the House enrolled/signed by Speaker

    3/25/2026Senate

  6. Reported Enrolled; Signed by Speaker; Transmitted to Senate

    3/25/2026House

  7. Returned from Senate Passed; to JRA for Enrolling

    3/24/2026House

  8. Read third time in full – PASSED - 32-2-1

    3/24/2026Senate

  9. Read second time; filed for Third Reading

    3/18/2026Senate

  10. Reported out of Committee with Do Pass Recommendation; Filed for second reading

    3/17/2026Senate

  11. Introduced, read first time; referred to: Local Government & Taxation

    3/10/2026Senate

  12. Received from the House passed; filed for first reading

    3/10/2026Senate

  13. Rules Suspended: Ayes 65 Nays 0 Abs/Excd 5, read in full as required – PASSED - 64-0-6

    3/9/2026House

  14. Read second time; Filed for Third Reading

    3/9/2026House

  15. Reported out of Committee with Do Pass Recommendation, Filed for Second Reading

    3/6/2026House

  16. Reported Printed and Referred to Business

    2/17/2026House

  17. Introduced, read first time, referred to JRA for Printing

    2/16/2026House

Bill Text

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