How do I apply for a building permit in Darby, Montana, MT?

1. Download building permit application form 2. Complete application with required information 3. Prepare plot plan and construction plans 4. Submit to Town Hall at 110 South Main Street 5. Building official reviews application 6. Once approved, notify applicant 7. Pay permit fees 8. Building permit issued 9. Work may commence

How long does it take to get a building permit in Darby, Montana, MT?

Typical processing time is 1-2 weeks.

What work is exempt from building permits in Darby, Montana, MT?

The following work is generally exempt: Residential buildings under 5 units (except transient guest lodging); Private garages and storage buildings for personal use only; Minor repairs and maintenance. Note: Verify specific thresholds with building department

How do I schedule a building inspection in Darby, Montana, MT?

Inspections can be scheduled via: .

City Building Permits

Darby, Montana, MT - 2026 Building Permit Guide

How to apply for a building permit in Darby, Montana, Montana. Permit authority, application steps, fees, and inspection requirements.

Montana Ravalli County Updated March 2026

Permit Authority

All building permits for town jurisdiction; electrical, plumbing, mechanical handled by state

Department: Town of Darby Building Department
Address: 110 South Main Street, Darby MT 59829
Phone: (406) 821-3753
Website: https://www.darbymt.net/a/building-related-code/

Online Permit Portal

Open Darby Forms and Documents

Platform: • Account required: No • Submission: In-person only

Application Process

Download building permit application form
Complete application with required information
Prepare plot plan and construction plans
Submit to Town Hall at 110 South Main Street
Building official reviews application
Once approved, notify applicant
Pay permit fees
Building permit issued
Work may commence

Typical processing time: 1-2 weeks

General Requirements

For new construction, additions, alterations, repairs, demolitions, occupancy changes

Required Documents

Plot plan showing building location with setback distances
Construction plans drawn to scale (foundation, floor, roof framing, floor plans, exterior elevations)
Project description
Estimated valuation

Building code: IBC, IECC, IEBC, IRC, and Montana Administrative Rules (ARM)
Contractor requirements: All work must conform to current adopted building codes

Fees

Payment note: Fee schedule available from Town of Darby. Contact (406) 821-3753 for current fee schedule and rates.

Work That Does NOT Require a Permit

Contact the Town of Darby Building Department to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

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Typical inspection sequence: Inspections required at: foundation, framing, mechanical/electrical/plumbing systems, final occupancy. Building official verifies code compliance at each stage. Note: Electrical, plumbing, mechanical, and boiler permits inspected by State of Montana. Final occupancy permit issued upon completion and code compliance verification.

Additional Resources

Building code: IBC, IECC, IEBC, IRC, and Montana Administrative Rules (ARM)
Town of Darby Building
Darby Forms and Documents
Montana Building Codes Program
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 Town of Darby Building Department before applying.

Frequently Asked Questions

Darby, Montana Building Permit FAQ

Do I need a building permit in Darby, Montana, MT?: For new construction, additions, alterations, repairs, demolitions, occupancy changes
How do I apply for a building permit in Darby, Montana, MT?: 1. Download building permit application form 2. Complete application with required information 3. Prepare plot plan and construction plans 4. Submit to Town Hall at 110 South Main Street 5. Building official reviews application 6. Once approved, notify applicant 7. Pay permit fees 8. Building permit issued 9. Work may commence
How long does it take to get a building permit in Darby, Montana, MT?: Typical processing time is 1-2 weeks.
What work is exempt from building permits in Darby, Montana, MT?: The following work is generally exempt: Residential buildings under 5 units (except transient guest lodging); Private garages and storage buildings for personal use only; Minor repairs and maintenance. Note: Verify specific thresholds with building department
How do I schedule a building inspection in Darby, Montana, MT?: Inspections can be scheduled via: .

Need help with your project?

Navigating permits in Darby, Montana can be complicated.

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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