Subdividing and Developing Land in Missoula County, Montana

A live example: converting a 107-acre former mill site into 29 mixed-use lots

One of the county's active projects, referred to locally as Blackfoot Crossing, proposes converting the roughly 107-acre former Bonner West log yard site into 29 lots across two development phases, mixing commercial, residential, industrial, and recreational uses on land that spent decades as industrial timber infrastructure. For a buyer evaluating raw or formerly-industrial acreage anywhere in the county, this project is a useful real-world reference point for how long a multi-phase, mixed-use subdivision takes to move through county review, and for how much site work (environmental remediation, utility extension, road construction) a former industrial parcel can require before it's buildable lots -- ask the county Planning, Development and Sustainability office for the project's current phase and any lessons-learned it will share before assuming a similar timeline for your own project.

Economic-development districts can be created years before infrastructure exists

Separately, the county created a Targeted Economic Development District (TEDD) over roughly 84 acres at Grant Creek Crossing in 2024 -- a designation meant to help finance future infrastructure and attract development, but one that, as of the most recent reporting, still lacks any form of infrastructure on the ground. That gap matters directly to a buyer: a parcel's inclusion in a TEDD or similar economic-development designation signals county intent and potential future financing tools, but it is not the same thing as the parcel being development-ready today. Confirm the actual status of roads, water, sewer, and power before treating a TEDD designation as evidence that a parcel is close to buildable.

Missoula County's development-review structure has also been in flux: the Missoula Consolidated Planning Board, which reviews city and county development applications, was expected to disband in early 2026 once it worked through its existing project pipeline, as part of a broader reorganization of how the city and county handle land-use review following the city's separate Title 22 Unified Development Code adoption. A buyer or developer with a subdivision or site-plan application in process should confirm with the county which board or review body currently has jurisdiction over their specific application -- the answer may have changed since a given project was first filed.

What this means for a straightforward land split, not just a big project

Most buyers splitting off a smaller number of parcels won't be filing a 29-lot mixed-use project or forming a TEDD, but the same underlying county apparatus reviews their application: unincorporated Missoula County subdivision review runs through Planning, Development and Sustainability, generally in coordination with the Missoula City-County Health Department for any Sanitation in Subdivisions Act review a division triggers under state law (see the state hub for that framework), and against whichever zoning -- county-wide code or a specific citizen-initiated district -- actually governs the parcel. Given the county's active pipeline of large projects noted above, expect staff review timelines to reflect current departmental workload rather than a fixed number of weeks, and confirm current turnaround times directly with the department before committing to a closing date or construction schedule contingent on subdivision approval.