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Bill Summary · LC 1655

Legislative bill overview

LC 1655 would modify Montana's municipal zoning regulations to permit triplex and fourplex housing units in areas currently restricted to single-family homes. The bill aims to increase housing supply and density by allowing up to four-unit residential buildings where only detached single-family homes are now permitted. This represents a form of "missing middle" housing policy gaining traction across the United States.

Why is this important

Housing affordability and availability remain critical issues in Montana communities, and zoning restrictions significantly limit the housing supply. Allowing triplexes and fourplexes could increase affordable housing options, generate property tax revenue, and make more efficient use of land in growing municipalities. However, this also represents a substantial shift in local land-use control and neighborhood character.

Potential points of contention

  • Local control concerns: Municipalities may resist state-mandated zoning changes, arguing that local governments should determine their own land-use policies based on community preferences
  • Neighborhood character and impacts: Existing single-family homeowners may worry about increased density, parking challenges, traffic, and changes to established neighborhood aesthetics and community feel
  • Infrastructure readiness: Communities may lack adequate water, sewer, road capacity, and public services to support denser housing development without significant public investment

Compiled from official sources — confirm details with the bill’s official record.

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