Residential Addition / Remodel / Alteration Permit in Kalispell, Montana
VerifiedRequired for additions, remodels, decks, and structural alterations to existing residential structures in Kalispell. Uses the same valuation-based Building Permit Fee Schedule as new construction. Applications submitted through the online e-Permit portal.
Verified 2026-07-02 · Source
When you need this permit
- Room additions, decks, garages, and structural modifications to existing residences require a building permit
- Application submitted through the online e-Permit portal
- Job site legal description and Assessment Code Number required
- Plans must comply with the 2021 IRC and 2021 Energy Code with Kalispell amendments
- Separate trade permits (electrical, plumbing, mechanical) required if the scope includes those systems
Required documents
- Required
Residential Building Permit Application
Same form used for new construction; select the appropriate work description for addition/remodel/alteration scope
- Required
Construction Drawings
Plans showing scope of work, dimensions, and connection to the existing structure, submitted through the e-Permit portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same schedule as new construction) | $23.50 minimum (valuation $1-$500) scaling to $6,444.85 for the first $1,000,000 plus $5.25 per additional $1,000 over $1,000,000 | City of Kalispell Building Permit Fee Schedule, effective 09/04/2024 — the same valuation table applies to additions/remodels as to new construction |
| Residential Plan Review Fee | $75.00 per hour, 1-hour minimum | City of Kalispell Building Permit Fee Schedule, effective 09/04/2024 |
| Work Commenced Without a Permit | 200% of the original permit amount | Per City of Kalispell Ordinance 1889 and Resolution 5703 |
Review timeline
14–21 business days
Kalispell’s published plan-review target
Inspection process
- 1
Framing / Structural
After framing complete, before wall cover
- 2
MEP Rough-In
Electrical, plumbing, and mechanical rough-in before walls closed — separate trade permits required
- 3
Final
All work complete per approved plans
Tips
- Residential plan review has a published lead time of 2-3 weeks from complete submittal — verified directly on the Kalispell Building Department page.
- Decks, garages, and additions are billed on the same valuation-based Building Permit Fee Schedule as new residential construction — there is no separate flat-rate table for these scopes.
- Separate trade permits (electrical, plumbing, mechanical) are required if the addition/remodel scope includes those systems.
Frequently asked questions
- Do I need a permit for a deck or addition in Kalispell?
- Yes. Decks, additions, and structural alterations to existing residences require a building permit through the City of Kalispell Building Department, using the same valuation-based fee schedule as new construction.
Sources & verification
Verified against official sources. Last reviewed 2026-07-02.
- City of Kalispell Building Department — official building department
- Building | City of Kalispell
- Current Res. Permit Fee Schedule (PDF, effective 09/04/2024)
- Residential Building Permit Application (PDF)
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 Kalispell building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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