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§ 02
When a permit is required
Permit triggers and exempt work for Cascade County
Per CCZR Section 9.2.1, a Location/Conformance Permit is required for all proposed buildings, structures, signs, land uses, and changes in land use within the Zoning Jurisdictional Area. This includes sheds, garages, new businesses, and changes of use. For commercial or non-exempt construction, a separate state DLI building permit is required.
Non-commercial structures 200 square feet or less (county exemption under CCZR Section 9.2.3)
Farm and ranch buildings (state exemption)
Mining buildings on mining property (state exemption)
Residential buildings with fewer than 5 dwelling units, including single-family homes, duplexes, triplexes, and fourplexes (state exemption)
Private garages and private storage buildings used for the owner's personal use, not part of a commercial operation (state exemption)
Petroleum refineries and pulp/paper mills, excluding office/shop buildings (state exemption)
- Exempt Non-commercial structures 200 square feet or less (county exemption under CCZR Section 9.2.3)
- Exempt Farm and ranch buildings (state exemption)
- Exempt Mining buildings on mining property (state exemption)
- Exempt Residential buildings with fewer than 5 dwelling units, including single-family homes, duplexes, triplexes, and fourplexes (state exemption)
- Exempt Private garages and private storage buildings used for the owner's personal use, not part of a commercial operation (state exemption)
- Exempt Petroleum refineries and pulp/paper mills, excluding office/shop buildings (state exemption)
Note: Even exempt structures must comply with county zoning regulations and must obtain a Location/Conformance Permit if located within the zoning jurisdictional area. Confirm exemption status with the Planning Department at 406-454-6905.
Required documents
- Location/Conformance Permit application form (for zoning)
- Site plan
- Property description
- Proposed use or structure description
- Floodplain application (if in a FEMA flood hazard zone)
- For state DLI permits: construction plans and Building Permit/Plan Review Application
- Building code
- The county Planning Department does not enforce building codes. Building code enforcement is handled by Montana DLI (state jurisdiction). Montana Building Codes Program adopts International Building Codes. See https://bsd.dli.mt.gov/building-codes-permits/current-codes
- Permit validity
- Not publicly documented for county zoning; contact 406-454-6905. For state DLI permits, contact (406) 841-2056.
- Owner-builder
- Not applicable to county zoning L/C Permit. State residential exemptions apply; contact DLI for specifics.
- Contractor requirements
- Not administered by the county Planning Department. Montana state contractor registration requirements apply. Contractors with employees must register with Montana DLI ($70 fee). Independent contractors with no employees must obtain an Independent Contractor Exemption Certificate (ICEC). Projects over $2,500 in contract value trigger registration requirements.
§ 03
Application process
Typical processing: County L/C Permit: varies (contact 406-454-6905). State DLI plan review: 2-3 weeks for complete submittals.
- 01 Contact the Cascade County Planning and GIS Department at 406-454-6905 to confirm whether your property is within the zoning jurisdictional area and what permit type applies.
- 02 Download the Location/Conformance Permit (zoning) application from https://www.cascadecountymt.gov/262/Forms-Permit-Applications or pick up in person at 121 4th Street N, Suite 2H/I, Great Falls.
- 03 Prepare required documents: application form, site plan, property description, description of proposed use or structure.
- 04 Submit the completed zoning application in person during office hours (Monday-Friday, 8 a.m.-Noon and 1-5 p.m.) or via the online form portal.
- 05 The Zoning Administrator reviews and issues the Location/Conformance (L/C) Permit.
- 06 For commercial or non-exempt building code work, apply separately through the Montana DLI portal at https://ebiz.mt.gov/ or by mailing to the Helena office.
- 07 Submit state DLI application with construction plans and Building Permit/Plan Review Application.
- 08 DLI will send a screening letter and fee notification. Fees must be paid before plan review begins.
- 09 Plan review typically takes 2-3 weeks for complete submissions. Respond to any comments and resubmit corrections as required.
- 10 Notify the Cascade County state inspector (406-439-2982) when work is ready for required inspections.
Typical processing time: County L/C Permit: varies (contact 406-454-6905). State DLI plan review: 2-3 weeks for complete submittals.
§ 04
Fee schedule
Effective July 12, 2022
Fee type
Amount
01
Plan check fee
County does not review building plans. State DLI plan check is included in overall permit fee structure.
02
Permit fee formula
Zoning (county): not confirmed in available sources. State DLI building permits: approximately 1-2% of building valuation.
County zoning fees: contact Planning Department at 406-454-6905. State DLI fees: communicated via screening letter after application submission; payment required before plan review proceeds.
Fees change periodically. Confirm at the official fee schedule ↗ (effective July 12, 2022) before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- Cascade County state inspector: 406-439-2982 (phone)
- DLI main line: (406) 841-2056 (phone)
- Scheduling deadline
- Call at least 24 hours before desired inspection. Inspector has 72 hours from notification to perform inspection.
- Inspection hours
- Contact inspector to confirm availability
Typical sequence: Follows adopted building code inspection requirements for the specific permit type. Typical sequence: footing, framing, rough-in, final, etc.
§ 06
Frequently asked
Common questions about unincorporated Cascade County permits
01 Do I need a building permit in unincorporated Cascade County, MT? ▸
Per CCZR Section 9.2.1, a Location/Conformance Permit is required for all proposed buildings, structures, signs, land uses, and changes in land use within the Zoning Jurisdictional Area. This includes sheds, garages, new businesses, and changes of use. For commercial or non-exempt construction, a separate state DLI building permit is required.
02 How much does a building permit cost in unincorporated Cascade County, MT? ▸
Building permit fees in unincorporated Cascade County, MT are set by the local building department and vary by project type and valuation. Fees are calculated as: Zoning (county): not confirmed in available sources. State DLI building permits: approximately 1-2% of building valuation.. Plan check fee: County does not review building plans. State DLI plan check is included in overall permit fee structure..
03 How do I apply for a building permit in unincorporated Cascade County, MT? ▸
To apply for a building permit in unincorporated Cascade County, MT, follow these steps: 1. Contact the Cascade County Planning and GIS Department at 406-454-6905 to confirm whether your property is within the zoning jurisdictional area and what permit type applies. 2. Download the Location/Conformance Permit (zoning) application from https://www.cascadecountymt.gov/262/Forms-Permit-Applications or pick up in person at 121 4th Street N, Suite 2H/I, Great Falls. 3. Prepare required documents: application form, site plan, property description, description of proposed use or structure. 4. Submit the completed zoning application in person during office hours (Monday-Friday, 8 a.m.-Noon and 1-5 p.m.) or via the online form portal. 5. The Zoning Administrator reviews and issues the Location/Conformance (L/C) Permit. 6. For commercial or non-exempt building code work, apply separately through the Montana DLI portal at https://ebiz.mt.gov/ or by mailing to the Helena office. 7. Submit state DLI application with construction plans and Building Permit/Plan Review Application. 8. DLI will send a screening letter and fee notification. Fees must be paid before plan review begins. 9. Plan review typically takes 2-3 weeks for complete submissions. Respond to any comments and resubmit corrections as required. 10. Notify the Cascade County state inspector (406-439-2982) when work is ready for required inspections.
04 How long does it take to get a building permit in unincorporated Cascade County, MT? ▸
Building permit processing times in unincorporated Cascade County, MT typically run County L/C Permit: varies (contact 406-454-6905). State DLI plan review: 2-3 weeks for complete submittals.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in unincorporated Cascade County, MT? ▸
Not all construction work requires a permit in unincorporated Cascade County, MT. The following work is generally exempt: Non-commercial structures 200 square feet or less (county exemption under CCZR Section 9.2.3); Farm and ranch buildings (state exemption); Mining buildings on mining property (state exemption); Residential buildings with fewer than 5 dwelling units, including single-family homes, duplexes, triplexes, and fourplexes (state exemption); Private garages and private storage buildings used for the owner's personal use, not part of a commercial operation (state exemption); Petroleum refineries and pulp/paper mills, excluding office/shop buildings (state exemption). Note: Even exempt structures must comply with county zoning regulations and must obtain a Location/Conformance Permit if located within the zoning jurisdictional area. Confirm exemption status with the Planning Department at 406-454-6905. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in unincorporated Cascade County, MT? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Cascade County, MT via: Cascade County state inspector: 406-439-2982, DLI main line: (406) 841-2056. Call at least 24 hours before desired inspection. Inspector has 72 hours from notification to perform inspection..
last verified March 2026
source Cascade County Planning and GIS Department (for zoning); Montana Department of Labor and Industry, Building Codes Program (for building codes) ↗
entry id permits/montana/cascade/unincorporated
Educational reference. Permit rules and fees change — confirm current requirements directly with Cascade County Planning and GIS Department (for zoning); Montana Department of Labor and Industry, Building Codes Program (for building codes) before applying. Jaspector is not legal advice.