Residential Addition / Alteration Permit in Bozeman, Montana
VerifiedRequired for adding new square footage to, or remodeling without adding square footage to, an existing residential structure in Bozeman. Reviewed under the 2021 IRC.
Verified 2026-07-02 · Source
When you need this permit
- Residential Addition: adding new square footage to an existing residential structure
- Residential Alteration (Remodel): remodeling an existing residential structure without adding new square footage
- Water Service Fixture Count form required if adding or removing water fixtures
- Sump Drain Policy and Site Drainage Self Certification required for additions
- Truss/structural calculations and spec sheets required as applicable to scope
- Some remodel work is exempt from permitting — see the city's 'IRC Work Exempt from Permits' guide before applying
Required documents
- Optional
Water Service Fixture Count (PDF)
Required if the project adds or removes water fixtures
- Required
Sump Drain Policy acknowledgment (PDF)
Required for additions
- Required
Site Drainage Self Certification Form (PDF)
Required for additions
- Optional
Truss/Structural Calculations
Required construction-related documentation where structural work is involved
- Optional
IRC Work Exempt from Permits (PDF)
Reference guide listing scopes of residential work that do NOT require a permit
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee (formula-based, additions) | Same Table A / hourly-rate formula as new residential construction, applied to the added square footage | Bozeman Municipal Code Sec. 10.02.020, as amended by Ordinance 2143 (2023) |
| Plan Revision Fee — Residential (IRC) | $125.00 | City of Bozeman Building Permit Checklists, Forms, and Guides page (Revisions to Approved Plans section); additional plan check/permit fees may apply if project valuation increases due to the revision |
Review timeline
~5–10 business days
Typical estimate — confirm current times with the Bozeman building department
Inspection process
- 1
Framing
Required if structural work is part of the addition/remodel scope
- 2
Final
All work complete per approved plans
Tips
- Check the 'IRC Work Exempt from Permits' guide first — some remodel work does not require a permit at all.
- If you are only remodeling (no new square footage), you do not need the Landscape & Irrigation Self-Certification Form required for new construction/additions.
- Revising an already-approved and stamped plan set costs $125 for residential (IRC) projects and requires emailing building@bozemanmt.gov with the permit number, project address, and description of changes.
Frequently asked questions
- How much does it cost to revise approved residential plans in Bozeman?
- $125.00 for residential (IRC) plan revisions, per the City of Bozeman Building Permit Checklists, Forms, and Guides page. If the revision increases the project's valuation, additional plan check and permit fees may apply.
Sources & verification
Verified against official sources. Last reviewed 2026-07-02.
- City of Bozeman — Community Development, Building Division — official building department
- Building Permit Checklists, Forms, and Guides | City of Bozeman
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Bozeman building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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