SB 23 Michigan Senate · 2025-2026 Regular Session

Land use: land division; number of parcels resulting from division; authorize counties and municipalities to increase. Amends sec. 108 of 1967 PA 288 (MCL 560.108).

SB 23 amends Michigan's Land Division Act to increase the maximum number of parcels allowed when splitting land. It allows up to 4 parcels for the first 10 acres of an original parcel, plus 1 additional parcel for every full 10 acres after that (capping at 15 total parcels), with additional exceptions for large parcels (e.g., one parcel covering 60% of the land or parcels over 40 acres that don't count toward limits). This directly affects landowners seeking to divide property and local governments (counties/municipalities) that enforce land division rules. The bill streamlines subdivision rules by reducing restrictions on parcel counts while maintaining access requirements and clarifying re-splitting rules after 10 years.
Bill status signed all 5 stages cleared
Introduction
Jan 2025
Committee Review
Dec 2025
Senate Passage
Dec 2025
House Passage
Dec 2025
Signed into Law
Dec 2025
Introduced Jan 22, 2025 Signed Dec 23, 2025
Maddy AI version diff · 6 comparisons

What changed between versions

As Passed by the Senate Substitute (H-1) · 4 edits
MODERATE
The House substitute version of SB 23 restructures how land divisions are calculated and regulated, replacing the previous flat 10-parcel limit with a tiered system that allows more parcels based on land size. It also clarifies rules for further partitioning after divisions and adds a new provision allowing municipalities to authorize additional divisions through local ordinances.
Scope change
The bill's scope expanded from a fixed parcel limit to a graduated system based on acreage, and added new pathways for municipalities to approve additional divisions through local ordinances.
REQUIREMENT

Changed the maximum number of parcels allowed from a flat 10-parcel limit to a tiered system where the first 10 acres allow 4 parcels initially (increasing to 10 after one year), with additional parcels permitted for each whole 10 acres beyond the first 10 and each whole 40 acres beyond the first 120.

Added new subsection allowing municipalities or counties to authorize divisions into more parcels than otherwise permitted through local ordinances that comply with section 109(1) standards.

Reorganized and clarified the rules for further partitioning of parcels created by exempt splits or divisions, maintaining the 10-year recording requirement and parcel limits while adding the new ordinance-based exception.

TIMELINE

Added a one-year transition period where the first 10 acres allow only 4 parcels, after which the limit increases to 10 parcels for the first 10 acres.

Floor votes · Senate Dec 18, 2025 · House Dec 16, 2025

How they voted

314
Passed · 3 other
Total votes 38
Dec 18, 2025
D Democratic19
17 Yea 2
89% Yea
R Republican19
14 Yea 4 Nay 1
73% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
35
Key actions
11
Committee
7
Amendments
1
Dec 23, 2025
Introduced
FILED WITH SECRETARY OF STATE 12/23/2025 12:08 PM
upper
Dec 23, 2025
Signed into law
APPROVED BY GOVERNOR 12/23/2025 10:38 AM
upper
Dec 18, 2025
Upper · Passed
HOUSE SUBSTITUTE (H-1) CONCURRED IN
upper
Dec 18, 2025
Upper · Passed
PASSED BY HOUSE WITH SUBSTITUTE (H-1) WITH IMMEDIATE EFFECT
upper
Dec 16, 2025
Lower · Passed
passed; given immediate effect Roll Call #338 Yeas 97 Nays 8 Excused 0 Not Voting 5
lower
Dec 16, 2025
Lower · Passed
substitute (H-1) adopted
lower
Dec 11, 2025
Committee
referred to second reading
lower
Dec 11, 2025
Lower · Passed
reported with recommendation with substitute (H-1)
lower
Mar 12, 2025
Committee
referred to Committee on Regulatory Reform
lower
Mar 12, 2025
Introduced
received on 03/12/2025
lower
Mar 12, 2025
Upper · Passed
PASSED ROLL CALL # 17 YEAS 30 NAYS 6 EXCUSED 1 NOT VOTING 0
upper
Mar 12, 2025
Upper · Passed
AMENDMENT(S) ADOPTED
upper
Mar 5, 2025
Upper · Passed
SUBSTITUTE (S-2) CONCURRED IN
upper
Mar 5, 2025
Upper · Passed
REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-2)
upper
Feb 26, 2025
Committee
REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-2)
upper
Feb 26, 2025
Upper · Passed
REPORTED FAVORABLY WITH SUBSTITUTE (S-2) 2/25/2025
upper
Jan 22, 2025
Committee
REFERRED TO COMMITTEE ON LOCAL GOVERNMENT
upper
Jan 22, 2025
Introduced
INTRODUCED BY SENATOR KEVIN HERTEL
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Kevin Hertel
Kevin Hertel
DDemocratic
MI
12