Missoula building & ADU permits
Recent permit activity, updated continuously.
Missoula publishes its permit register joined to the city's address points, so each record resolves to a mapped location. Montana's second-largest city has an active infill market, and accessory dwellings appear in the work descriptions of its residential construction permits.
Igni is tracking 316 residential and building permits in Missoula, MT — including 2 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 59808. The most recent filing Igni tracked was Oct 31, 2026. All records come from City of Missoula GIS (ArcGIS), an official government open-data feed, and are refreshed continuously.
316
Permits tracked
2
ADU permits
5
Distinct ZIP codes
Oct 31, 2026
Newest permit
Recent permits
A sample of the freshest permits in this jurisdiction — ZIP and city only (no street addresses).
| ZIP | Permit type | ADU type | Valuation | Applied |
|---|---|---|---|---|
| 59801 | Residential | — | — | Oct 30, 2026 |
| 59801 | Residential | — | — | Oct 29, 2026 |
| 59801 | Residential | — | — | Oct 29, 2026 |
| 59801 | Residential | — | — | Oct 28, 2026 |
| 59801 | Residential | — | — | Oct 28, 2026 |
| 59804 | Commercial | — | — | Oct 28, 2026 |
| 59801 | Commercial | — | — | Oct 28, 2026 |
| 59808 | Commercial | — | — | Oct 28, 2026 |
| 59808 | Residential | — | — | Oct 27, 2026 |
| 59808 | Residential | — | — | Oct 27, 2026 |
| 59808 | Residential | — | — | Oct 27, 2026 |
| 59808 | Residential | — | — | Oct 27, 2026 |
| 59808 | Residential | — | — | Oct 27, 2026 |
| 59808 | Residential | — | — | Oct 27, 2026 |
| 59801 | Residential | — | — | Oct 27, 2026 |
| 59801 | Residential | Unknown | — | Oct 27, 2026 |
| 59808 | Residential | — | — | Oct 27, 2026 |
| 59801 | Residential | — | — | Oct 26, 2026 |
| 59804 | Residential | — | — | Oct 26, 2026 |
| 59801 | Residential | Unknown | — | Oct 26, 2026 |
Top ZIP codes by recent activity
ADU types in the recent set
Housing law — Montana
Montana's SB 528 (2023, effective 2024) requires municipalities statewide to allow at least one accessory dwelling unit by right on lots with a single-family home; the 2023 housing-reform laws survived an early challenge when the Montana Supreme Court reversed a preliminary injunction against them in 2024, allowing them to take effect.
SB 323 (2023) requires cities of 5,000 or more to allow duplexes on lots where single-family homes are permitted, with no stricter standards than for single-family homes.
Data source
Sourced from City of Missoula GIS (ArcGIS). Public records (MT Public Records Act).
Nearby cities — Montana
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Missoula permit records into leads.
Missoula permit data — FAQ
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Fresh, filterable residential and ADU permit leads from Missoula — delivered before your competitors even know.
Informational only, not legal advice. Headline counts reflect all permits Igni has tracked for this jurisdiction; the table shows recent activity. Housing law changes — verify current statutes before relying on this.