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§ 02
When a permit is required
Permit triggers and exempt work for Helena
Any owner or authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure within Helena city limits must obtain the required permit before work begins. This includes new construction, additions, remodels, mechanical/electrical/plumbing work, demolition, and change of occupancy.
Farm and ranch buildings
Private residential buildings containing fewer than five dwelling units that do not serve transient guests (however, the City of Helena as a certified local government may still require local permits for residential work)
Private garages and private storage buildings for the owner's personal use (non-commercial)
Mining buildings on mine sites
Petroleum refineries and pulp and paper mills (except office and shop buildings)
Informational permits ($25 flat fee) may apply for minor work such as roof/siding replacement and window/door replacement without structural changes
- Exempt Farm and ranch buildings
- Exempt Private residential buildings containing fewer than five dwelling units that do not serve transient guests (however, the City of Helena as a certified local government may still require local permits for residential work)
- Exempt Private garages and private storage buildings for the owner's personal use (non-commercial)
- Exempt Mining buildings on mine sites
- Exempt Petroleum refineries and pulp and paper mills (except office and shop buildings)
- Exempt Informational permits ($25 flat fee) may apply for minor work such as roof/siding replacement and window/door replacement without structural changes
Note: The City of Helena enforces its own local code, so state exemptions may not fully apply within city limits. Always verify with the Helena Building Division before assuming work is exempt.
Required documents
- Building Permit Application
- Site plan showing legal description, property address, zoning district, property boundary dimensions, distances to street curb and public walks, easements and encumbrances
- Location of all existing and proposed structures with distances to property boundaries
- Site topography with grade elevations
- Location of all site utilities and water/sewer service information
- Structural plans and specifications stamped by a Montana-licensed engineer
- Mechanical plans stamped by a Montana-licensed engineer (HVAC systems)
- Soils investigation report (if applicable)
- Building code
- 2021 International Building Code (IBC), 2021 International Residential Code (IRC), 2021 International Mechanical Code (IMC), 2021 International Fuel Gas Code (IFGC), 2021 International Energy Conservation Code (IECC), 2021 International Fire Code (IFC), 2021 Uniform Plumbing Code (UPC), and 2020 National Electrical Code (NEC), all with Montana Administrative Rules amendments (ARM Title 24, Chapter 301) and Helena City Code Title 3 local amendments. Effective October 26, 2022.
- Permit validity
- Per adopted IBC 2021 provisions -- a permit becomes invalid if work is not commenced within 180 days of issuance, or if work is suspended or abandoned for 180 days after commencement. Written extensions of up to 180 days each may be granted upon written request showing justifiable cause.
- Owner-builder
- Not specifically detailed in public-facing materials; contact the Building Division at (406) 447-8490 to confirm owner-builder eligibility and requirements.
- Contractor requirements
- Montana requires Construction Contractor Registration (CR) for all construction businesses with employees, and for corporations and manager-managed LLCs even if the only employees are owners. Independent contractors without employees may obtain an Independent Contractor Exemption Certificate (ICEC) instead. Contact the Montana Department of Labor and Industry Employment Relations Division at (406) 444-7734.
Source: City of Helena Community Development Department, Building Division ↗
§ 03
Application process
Typical processing: Approximately three weeks for plan review; simple residential projects may be faster.
- 01 Determine whether your project requires a building permit and/or a zoning permit (contact Building Division at 406-447-8490 if uncertain).
- 02 Obtain and complete the Building Permit Application (available via Civic Access or at the Community Development office).
- 03 For commercial projects, prepare and submit required plans and supporting documents. Residential projects may have reduced submittal requirements.
- 04 Submit the application and plans online through Civic Access or deliver in person to Room 445.
- 05 Pay applicable plan review fee at submission (35% of permit fee).
- 06 Await plan review. Staff will contact you with comments or approval. Average review time is approximately three weeks.
- 07 Respond in writing to any plan review comments until all items are resolved.
- 08 Pay the remaining building permit fee upon approval.
- 09 Permit is issued. Post the permit card at the job site as required.
- 10 Schedule required inspections through Civic Access or by calling the Building Division.
- 11 Receive final inspection approval and certificate of occupancy (if applicable).
Typical processing time: Approximately three weeks for plan review; simple residential projects may be faster.
Source: City of Helena Community Development Department, Building Division ↗
§ 04
Fee schedule
Effective November 2022
Fee type
Amount
01
Minimum permit fee
$23.50
02
Plan check fee
35% of the building permit fee, paid at time of plan submittal.
03
Permit fee formula
Valuation-based per IBC Section 109.2 fee table (per City Code Ordinance 3134, fees are based on the greater of Square Foot Valuation or Contract Dollar Amount): $1-$500: $23.50; $501-$2,000: $23.50 for first $500 + $3.05 per $100 or fraction thereof; $2,001-$25,000: $69.25 for first $2,000 + $14.00 per $1,000 or fraction thereof; $25,001-$50,000: $391.75 for first $25,000 + $10.10 per $1,000 or fraction thereof; $50,001-$100,000: $643.75 for first $50,000 + $7.00 per $1,000 or fraction thereof; $100,001-$500,000: $993.75 for first $100,000 + $5.60 per $1,000 or fraction thereof; $500,001-$1,000,000: $3,233.75 for first $500,000 + $4.75 per $1,000 or fraction thereof; $1,000,001 and up: $5,608.75 for first $1,000,000 + $3.15 per $1,000 or fraction thereof
04
Reinspection fee
Inspections outside normal business hours: $45/hour (minimum 2 hours); General inspections: $45/hour (minimum 0.5 hour); Additional plan review for revisions: $45/hour (minimum 0.5 hour); Requested inspections: $75/hour
Fees may be paid through Civic Access online portal or in person at the Building Division office.
Fees change periodically. Confirm at the official fee schedule ↗ (effective November 2022) before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- Civic Access portal (online)
- (406) 447-8490 or (406) 447-8438 (phone)
- Inspection hours
- Monday through Friday, 8:00 a.m. to 5:00 p.m.
Typical sequence: Typical sequence: Footing/foundation; framing (rough-in); rough mechanical, plumbing, electrical; insulation; wallboard/drywall; final inspection. Specific required inspections are determined at permit issuance.
Source: City of Helena Community Development Department, Building Division ↗
§ 06
Frequently asked
Common questions about Helena permits
01 Do I need a building permit in Helena, MT? ▸
Any owner or authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure within Helena city limits must obtain the required permit before work begins. This includes new construction, additions, remodels, mechanical/electrical/plumbing work, demolition, and change of occupancy.
02 How much does a building permit cost in Helena, MT? ▸
Building permit fees in Helena, MT are set by the local building department and vary by project type and valuation. The minimum permit fee is $23.50. Fees are calculated as: Valuation-based per IBC Section 109.2 fee table (per City Code Ordinance 3134, fees are based on the greater of Square Foot Valuation or Contract Dollar Amount): $1-$500: $23.50; $501-$2,000: $23.50 for first $500 + $3.05 per $100 or fraction thereof; $2,001-$25,000: $69.25 for first $2,000 + $14.00 per $1,000 or fraction thereof; $25,001-$50,000: $391.75 for first $25,000 + $10.10 per $1,000 or fraction thereof; $50,001-$100,000: $643.75 for first $50,000 + $7.00 per $1,000 or fraction thereof; $100,001-$500,000: $993.75 for first $100,000 + $5.60 per $1,000 or fraction thereof; $500,001-$1,000,000: $3,233.75 for first $500,000 + $4.75 per $1,000 or fraction thereof; $1,000,001 and up: $5,608.75 for first $1,000,000 + $3.15 per $1,000 or fraction thereof. Plan check fee: 35% of the building permit fee, paid at time of plan submittal..
03 How do I apply for a building permit in Helena, MT? ▸
To apply for a building permit in Helena, MT, follow these steps: 1. Determine whether your project requires a building permit and/or a zoning permit (contact Building Division at 406-447-8490 if uncertain). 2. Obtain and complete the Building Permit Application (available via Civic Access or at the Community Development office). 3. For commercial projects, prepare and submit required plans and supporting documents. Residential projects may have reduced submittal requirements. 4. Submit the application and plans online through Civic Access or deliver in person to Room 445. 5. Pay applicable plan review fee at submission (35% of permit fee). 6. Await plan review. Staff will contact you with comments or approval. Average review time is approximately three weeks. 7. Respond in writing to any plan review comments until all items are resolved. 8. Pay the remaining building permit fee upon approval. 9. Permit is issued. Post the permit card at the job site as required. 10. Schedule required inspections through Civic Access or by calling the Building Division. 11. Receive final inspection approval and certificate of occupancy (if applicable).
04 How long does it take to get a building permit in Helena, MT? ▸
Building permit processing times in Helena, MT typically run Approximately three weeks for plan review; simple residential projects may be faster.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Helena, MT? ▸
Not all construction work requires a permit in Helena, MT. The following work is generally exempt: Farm and ranch buildings; Private residential buildings containing fewer than five dwelling units that do not serve transient guests (however, the City of Helena as a certified local government may still require local permits for residential work); Private garages and private storage buildings for the owner's personal use (non-commercial); Mining buildings on mine sites; Petroleum refineries and pulp and paper mills (except office and shop buildings); Informational permits ($25 flat fee) may apply for minor work such as roof/siding replacement and window/door replacement without structural changes. Note: The City of Helena enforces its own local code, so state exemptions may not fully apply within city limits. Always verify with the Helena Building Division before assuming work is exempt. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Helena, MT? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Helena, MT via: Civic Access portal, (406) 447-8490 or (406) 447-8438.
last verified March 2026
source City of Helena Community Development Department, Building Division ↗
entry id permits/montana/lewis-clark/helena
Educational reference. Permit rules and fees change — confirm current requirements directly with City of Helena Community Development Department, Building Division before applying. Jaspector is not legal advice.