Montana Zoning & Land Use Laws
Zoning regulations, ADU laws, short-term rental rules, and land use policies for Montana. Source-cited from state legislation and municipal codes.
Total Cities
129
Total Counties
56
ADU State Law
Yes
Lot Split Law
No state law
Cottage Food Law
Yes
Cities With Data
0
Montana ADU Law
Montana has a statewide ADU law (Montana HB 245 (2023) — Montana Zoning Act Reforms). See the official source for key provisions and current requirements.
View full MontanaADU law details →Cottage Food Law
Montana has a cottage food law. See your state's official agriculture or health department website for current regulations and permit requirements.
State Preemption Active
Montana state law preempts local zoning ordinances in several areas. Local governments cannot enact rules stricter than the state baseline.
Learn about Montanazoning preemption →Recent Legislative Changes
Source: Montana HB 245 (2023) — Montana Zoning Act Reforms. Last verified April 5, 2026. View source