City Building Permits
Dillon, MT - 2026 Building Permit Guide
How to apply for a building permit in Dillon, Montana. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Dillon is the county seat and has local zoning authority through Title 17 (Unified Zoning and Development Regulations). However, Dillon does NOT have certified building code enforcement. Building permits are still issued by the state Montana Building Codes Bureau. Dillon's role is limited to zoning compliance (land use, setbacks, lot coverage, height restrictions, etc.). ALL projects in Dillon require both local zoning approval AND state building permit.
- Department
- City of Dillon Planning & Zoning Department; Dillon Public Works Department
- Address
- 125 N. Idaho Street, Dillon, MT
- Phone
- (406) 683-4245
Online Permit Portal
Platform: Paper/in-person submission • Account required: No • Submission: In-person only
Additional resources:
Application Process
- Contact City of Dillon Public Works at (406) 683-4245
- Identify property zoning district and applicable Title 17 requirements
- Prepare zoning application (Zoning Compliance Application form)
- For new construction or significant remodels, submit to Zoning Commission
- Zoning Commission reviews application (meets 2nd and 4th Tuesday of month at 7:00 PM at City Hall)
- Commission verifies compliance with Dillon Ordinances (setbacks, lot coverage, height, use restrictions, etc.)
- Obtain zoning approval or conditional use permit if applicable
- Obtain evidence of Dillon zoning approval
- Complete Montana Building Permit/Plan Review Application
- Submit plans and application to state BCB via Accela or mail
- State BCB conducts plan review (average 3 weeks)
- Respond to plan review comments
- Pay permit fees
- State BCB issues building permit
- Schedule required inspections
Typical processing time: Zoning Commission meets twice monthly (2nd and 4th Tuesday). State plan review average 3 weeks.
Source: City of Dillon Planning & Zoning Department; Dillon Public Works Department
General Requirements
Any new construction, remodeling that changes building footprint, additions, decks, sheds, greenhouses, fences, and signage all require zoning permits in Dillon. Building permits from state BCB required for construction, alterations, repairs.
Required Documents
- Zoning application form
- Site plan showing property lines and setbacks
- Building plans or sketches
- Proof of ownership
- Description of work
- Evidence of survey if applicable
- Construction plans with code compliance detail (for state permit)
- Building Permit/Plan Review Application (for state permit)
- Building valuation estimate (for state permit)
- Building code
- Montana Uniform Building Code (MUBC) for building permits. Dillon Title 17 zoning code for land use and development standards.
- Owner-builder
- Montana allows owner-builders; no specific Dillon restrictions documented. Verify with city and state BCB.
- Contractor requirements
- State-licensed contractors required for electrical, plumbing, mechanical work. Separate permits required for these trades. All inspectors must be state-licensed or nationally certified.
Fees
- Plan check fee
- Included in state permit fee; Dillon zoning plan review fee not specified
- Permit fee formula
- Zoning permit fee structure not documented in available sources. State building permit fees: 1%-2% of building valuation.
- Payment note
- Contact City of Dillon for payment methods and processing details
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
- Interior remodeling not affecting building footprint or exterior
- Repairs and maintenance not changing building size or use
- Roof replacement in kind
- Siding/exterior finish replacement in kind
Important: Contact City of Dillon to confirm exemptions, as local ordinances vary. State building permit exemptions also apply.
Inspections
How to Schedule
- ()
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- Inspection hours
- Standard business hours; contact city and state for specific availability
Typical inspection sequence: Zoning review (approval must occur before building commencement), foundation inspection, framing inspection, mechanical/electrical/plumbing rough-in, final inspection
Additional Resources
- Building code: Montana Uniform Building Code (MUBC) for building permits. Dillon Title 17 zoning code for land use and development standards.
- Zoning information: View zoning info
- City of Dillon Planning & Zoning
- City of Dillon Documents (forms, fee schedule)
- Montana Building Codes Program
- State Building Permit FAQ
- License lookup guide: Montana Contractor License Requirements
- Contract template: Montana Homeowner-Contractor Agreement
- Montana hub: Montana Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Dillon Planning & Zoning Department; Dillon Public Works Department before applying.
Frequently Asked Questions
Dillon Building Permit FAQ
- Do I need a building permit in Dillon, MT?
- Any new construction, remodeling that changes building footprint, additions, decks, sheds, greenhouses, fences, and signage all require zoning permits in Dillon. Building permits from state BCB required for construction, alterations, repairs.
- How much does a building permit cost in Dillon, MT?
- Fees are calculated as: Zoning permit fee structure not documented in available sources. State building permit fees: 1%-2% of building valuation.. Plan check fee: Included in state permit fee; Dillon zoning plan review fee not specified.
- How do I apply for a building permit in Dillon, MT?
- 1. Contact City of Dillon Public Works at (406) 683-4245 2. Identify property zoning district and applicable Title 17 requirements 3. Prepare zoning application (Zoning Compliance Application form) 4. For new construction or significant remodels, submit to Zoning Commission 5. Zoning Commission reviews application (meets 2nd and 4th Tuesday of month at 7:00 PM at City Hall) 6. Commission verifies compliance with Dillon Ordinances (setbacks, lot coverage, height, use restrictions, etc.) 7. Obtain zoning approval or conditional use permit if applicable 8. Obtain evidence of Dillon zoning approval 9. Complete Montana Building Permit/Plan Review Application 10. Submit plans and application to state BCB via Accela or mail 11. State BCB conducts plan review (average 3 weeks) 12. Respond to plan review comments 13. Pay permit fees 14. State BCB issues building permit 15. Schedule required inspections
- How long does it take to get a building permit in Dillon, MT?
- Typical processing time is Zoning Commission meets twice monthly (2nd and 4th Tuesday). State plan review average 3 weeks..
- What work is exempt from building permits in Dillon, MT?
- The following work is generally exempt: Interior remodeling not affecting building footprint or exterior; Repairs and maintenance not changing building size or use; Roof replacement in kind; Siding/exterior finish replacement in kind. Note: Contact City of Dillon to confirm exemptions, as local ordinances vary. State building permit exemptions also apply.
- How do I schedule a building inspection in Dillon, MT?
- Inspections can be scheduled via: , .
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