= Accessory dwelling units =

The City publishes a page on '''accessory dwelling units and duplexes''', the housing types most affected by Montana's recent housing legislation and by the code work that followed the [[MontanaLandUsePlanningAct]].

An ADU is a secondary dwelling on a lot with a principal dwelling. Where and on what terms one may be built is a zoning question under Title 17 of the [[OfficialCode]], and applications and forms go through [[PlanningAndCommunityDevelopment]].

Housing supply is a recurring theme in the Commission record: the growth management public engagement report taken at [[WorkSession2025-05-20]], the workforce housing and [[TaxIncrementFinancing]] update at [[SpecialWorkSession2025-07-15]], the housing elements of [[FutureGreatFalls2045]], and the annexations that add subdivision capacity — [[AnnexationProcess]].

If you are looking for the current standards, go to the City's ADU page and the Land Development Code rather than relying on this summary; this area of the code has been under revision.

----
Accessory dwelling units and duplexes: https://greatfallsmt.gov/1080/Accessory-Dwelling-Units-and-Duplexes
Planning forms: https://greatfallsmt.gov/1117/Planning-Forms

[[ZoningOrdinances]] · [[PlanningAndCommunityDevelopment]] · [[Categories]]