On this page 6
§ 02
When a permit is required
Permit triggers and exempt work for Inverness
Per Montana state law; residential structures with 4+ dwelling units; fewer than 5 unit residential buildings exempt from building permits (electrical/plumbing required); alterations, additions, major repairs
Residential buildings with fewer than 4 dwelling units (exempt from building permits; electrical/plumbing required)
Farm and ranch buildings
Mining buildings
Private residential garages (vehicles only)
Private storage (personal use only)
Minor repairs and maintenance
- Exempt Residential buildings with fewer than 4 dwelling units (exempt from building permits; electrical/plumbing required)
- Exempt Farm and ranch buildings
- Exempt Mining buildings
- Exempt Private residential garages (vehicles only)
- Exempt Private storage (personal use only)
- Exempt Minor repairs and maintenance
Note: Per state law exemptions.
Required documents
- Building Permit Application
- Construction plans and specifications
- Site plan showing building location
- Building valuation estimate
- Engineering documentation if required
- Energy code compliance documentation
- Building code
- Montana Building Code 2021, Montana Residential Code 2021; 2021 International Energy Conservation Code
Source: Montana Building Codes Program ↗
§ 03
Application process
Typical processing: Approximately 3 weeks
- 01 Contact Montana Building Codes Program to determine if permit is required
- 02 Request application from state online portal or by mail
- 03 Complete application with construction plans and valuation estimate
- 04 Provide site plan and engineering if required
- 05 Submit via state portal or mail to Building Codes Program
- 06 State reviews application (approximately 3 weeks)
- 07 Receive permit approval and pay fees
- 08 Post permit at job site before starting work
- 09 Request inspections as work phases are completed
Typical processing time: Approximately 3 weeks
Source: Montana Building Codes Program ↗
§ 04
Fee schedule
Inverness building permit fees
Fee type
Amount
01
Permit fee formula
1-2% of building valuation
No fixed minimum fee. Obtain fee quote from Montana Building Codes Program at (406) 841-2056.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- Permit holder notifies inspector at least 24 hours before inspection needed (phone)
- Scheduling deadline
- 24 hours before inspection
- Time windows
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Source: Montana Building Codes Program ↗
§ 06
Frequently asked
Common questions about Inverness permits
01 Do I need a building permit in Inverness, MT? ▸
Per Montana state law; residential structures with 4+ dwelling units; fewer than 5 unit residential buildings exempt from building permits (electrical/plumbing required); alterations, additions, major repairs
02 How much does a building permit cost in Inverness, MT? ▸
Building permit fees in Inverness, MT are set by the local building department and vary by project type and valuation. Fees are calculated as: 1-2% of building valuation.
03 How do I apply for a building permit in Inverness, MT? ▸
To apply for a building permit in Inverness, MT, follow these steps: 1. Contact Montana Building Codes Program to determine if permit is required 2. Request application from state online portal or by mail 3. Complete application with construction plans and valuation estimate 4. Provide site plan and engineering if required 5. Submit via state portal or mail to Building Codes Program 6. State reviews application (approximately 3 weeks) 7. Receive permit approval and pay fees 8. Post permit at job site before starting work 9. Request inspections as work phases are completed
04 How long does it take to get a building permit in Inverness, MT? ▸
Building permit processing times in Inverness, MT typically run Approximately 3 weeks. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Inverness, MT? ▸
Not all construction work requires a permit in Inverness, MT. The following work is generally exempt: Residential buildings with fewer than 4 dwelling units (exempt from building permits; electrical/plumbing required); Farm and ranch buildings; Mining buildings; Private residential garages (vehicles only); Private storage (personal use only); Minor repairs and maintenance. Note: Per state law exemptions. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Inverness, MT? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Inverness, MT via: Permit holder notifies inspector at least 24 hours before inspection needed. 24 hours before inspection.
last verified March 2026
source Montana Building Codes Program ↗
entry id permits/montana/liberty/inverness
Educational reference. Permit rules and fees change — confirm current requirements directly with Montana Building Codes Program before applying. Jaspector is not legal advice.