On this page 6
§ 02
When a permit is required
Permit triggers and exempt work for Libby
Any new construction, remodeling, alterations, additions, decks, sheds, greenhouses within city limits require building permits. Setback requirements depend on location within city limits; typical residential zone setbacks are 7 feet from side line (16 feet total) and 25 feet from street front line. Verify exact setbacks for your property.
Sheds or playhouses under 200 square feet in area
Fences under 6 feet tall
Retaining walls not over 4 feet high
Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work
Roof replacement (when replacing in kind, not changes to structure)
Modular homes (though foundation construction requires permit)
Sidewalks and driveways (exempt from permit at this time, but construction requirements and inspection required per City ordinances; verify with city)
- Exempt Sheds or playhouses under 200 square feet in area
- Exempt Fences under 6 feet tall
- Exempt Retaining walls not over 4 feet high
- Exempt Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work
- Exempt Roof replacement (when replacing in kind, not changes to structure)
- Exempt Modular homes (though foundation construction requires permit)
- Exempt Sidewalks and driveways (exempt from permit at this time, but construction requirements and inspection required per City ordinances; verify with city)
Note: Even exempt work must comply with local zoning setback requirements and may require inspection. Contact Building Inspector for confirmation before beginning exempt work.
Required documents
- Completed Building Permit application form
- Construction plans or specifications (must define scope, intent, method of construction)
- Proof of property ownership or authorization
- Building description with estimated construction value
- Site plan showing property location and setbacks (if applicable)
- Building code
- Follows Montana Uniform Building Code (MUBC) and state building standards; local amendments and zoning requirements via Libby city ordinances
- Owner-builder
- Montana allows owner-builders; no specific Libby restrictions documented. Contact Building Inspector to confirm.
- Contractor requirements
- State-licensed contractors required for electrical, plumbing, mechanical work (separate permits required for these trades). Contractors must also obtain City of Libby business license before commencing work.
§ 03
Application process
Typical processing: 3 weeks average plan review from submission
- 01 Obtain Building Permit application from the Building Inspector office (952 E Spruce St) or at City Hall front desk
- 02 Prepare construction plans or specifications that define scope, intent, and method of construction (most projects require one set of plans)
- 03 Complete Building Permit application form
- 04 Submit completed application and construction documents to Building Inspector office
- 05 Building Inspector reviews application and plans (average 3 weeks plan review time; may vary by project complexity)
- 06 Applicant receives plan review comment letter via mail or email with required revisions
- 07 Applicant responds in writing to plan review comments and resubmits revised plans if required
- 08 Payment of permit fees (approximately 1% of total construction value, specific amount depends on valuation; contact for exact fee schedule)
- 09 City of Libby Building Inspector issues building permit
- 10 Permit holder posts permit in visible location on property
- 11 Schedule required inspections (contact Building Inspector at least 1 business day before inspection needed)
- 12 Final inspection and permit closure
Typical processing time: 3 weeks average plan review from submission
§ 04
Fee schedule
Effective 2026-03
Fee type
Amount
01
Plan check fee
Included in permit fee percentage
02
Permit fee formula
Approximately 1% of total construction value (exact formula available from Building Inspector office)
03
Reinspection fee
If construction begins without a permit, penalty fee is 50% of combined plan review and building permit fee, with minimum fee of $250 and maximum fee not to exceed $1,000
04
Penalty (no permit)
50% of combined plan review and building permit fee, with minimum fee of $250 and maximum fee not to exceed $1,000
Payment required before permit issuance. Fees mailed or emailed to applicants with plan review comments; specific payment methods to be confirmed with Building Inspector.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- Contact City of Libby Building Inspector at (406) 293-2775 (phone)
- Request inspection in writing or by phone at least 24 hours (one business day) before inspection needed (phone)
- Scheduling deadline
- At least 24 hours (one business day) before inspection needed
- Inspection hours
- Standard business hours (exact hours available via phone or city website); after-hours inspections not documented; contact city
Typical sequence: Foundation inspection, framing inspection, electrical/plumbing/mechanical rough-in inspections (may be combined), final inspection before Certificate of Occupancy issued
§ 06
Frequently asked
Common questions about Libby permits
01 Do I need a building permit in Libby, MT? ▸
Any new construction, remodeling, alterations, additions, decks, sheds, greenhouses within city limits require building permits. Setback requirements depend on location within city limits; typical residential zone setbacks are 7 feet from side line (16 feet total) and 25 feet from street front line. Verify exact setbacks for your property.
02 How much does a building permit cost in Libby, MT? ▸
Building permit fees in Libby, MT are set by the local building department and vary by project type and valuation. Fees are calculated as: Approximately 1% of total construction value (exact formula available from Building Inspector office). Plan check fee: Included in permit fee percentage.
03 How do I apply for a building permit in Libby, MT? ▸
To apply for a building permit in Libby, MT, follow these steps: 1. Obtain Building Permit application from the Building Inspector office (952 E Spruce St) or at City Hall front desk 2. Prepare construction plans or specifications that define scope, intent, and method of construction (most projects require one set of plans) 3. Complete Building Permit application form 4. Submit completed application and construction documents to Building Inspector office 5. Building Inspector reviews application and plans (average 3 weeks plan review time; may vary by project complexity) 6. Applicant receives plan review comment letter via mail or email with required revisions 7. Applicant responds in writing to plan review comments and resubmits revised plans if required 8. Payment of permit fees (approximately 1% of total construction value, specific amount depends on valuation; contact for exact fee schedule) 9. City of Libby Building Inspector issues building permit 10. Permit holder posts permit in visible location on property 11. Schedule required inspections (contact Building Inspector at least 1 business day before inspection needed) 12. Final inspection and permit closure
04 How long does it take to get a building permit in Libby, MT? ▸
Building permit processing times in Libby, MT typically run 3 weeks average plan review from submission. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Libby, MT? ▸
Not all construction work requires a permit in Libby, MT. The following work is generally exempt: Sheds or playhouses under 200 square feet in area; Fences under 6 feet tall; Retaining walls not over 4 feet high; Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work; Roof replacement (when replacing in kind, not changes to structure); Modular homes (though foundation construction requires permit); Sidewalks and driveways (exempt from permit at this time, but construction requirements and inspection required per City ordinances; verify with city). Note: Even exempt work must comply with local zoning setback requirements and may require inspection. Contact Building Inspector for confirmation before beginning exempt work. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Libby, MT? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Libby, MT via: Contact City of Libby Building Inspector at (406) 293-2775, Request inspection in writing or by phone at least 24 hours (one business day) before inspection needed. At least 24 hours (one business day) before inspection needed.
last verified March 2026
source City of Libby Building Inspector Department ↗
entry id permits/montana/lincoln/libby
Educational reference. Permit rules and fees change — confirm current requirements directly with City of Libby Building Inspector Department before applying. Jaspector is not legal advice.