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§ MT Sanders County
City building permits

Plains

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

Last verified
March 2026
On this page 5
§ 01

Permit authority

Town of Plains Building/Permitting Department

Street address
101 W Lynch Street, Plains, MT
Phone
(406) 826-3411
Email
info@townofplains.com
Coverage
Incorporated town of Plains; building permit issuance and code enforcement
Website
Department website
Additional resources
§ 02

When a permit is required

Permit triggers and exempt work for Plains

New construction, additions, alterations, renovations, repairs, demolition, and structural modifications

Farm and ranch buildings
Mining buildings on mining property
Petroleum refineries and pulp and paper mills (except office/shop buildings)
Residential buildings under five dwelling units (except transient use)
Private garages and storage buildings for owner's personal use
Agricultural structures per state exemptions
  • Exempt Farm and ranch buildings
  • Exempt Mining buildings on mining property
  • Exempt Petroleum refineries and pulp and paper mills (except office/shop buildings)
  • Exempt Residential buildings under five dwelling units (except transient use)
  • Exempt Private garages and storage buildings for owner's personal use
  • Exempt Agricultural structures per state exemptions

Note: Trade permits required where applicable (electrical, plumbing, mechanical). Per Montana state law applicable in town

Required documents
  • Completed application
  • Construction plans and specifications
  • Architectural drawings
  • Site plans
  • Proof of ownership
  • Town-specific forms
Building code
2021 International Building Code (IBC 2021) as adopted by the State of Montana and incorporated into Plains municipal code
§ 03

Application process

Typical processing: Approximately 3 weeks (standard Montana state review timeframe; local may vary)

  1. 01
    Contact Town of Plains Town Hall to determine local vs. state jurisdiction
  2. 02
    Prepare required construction documents: plans, drawings, site plans, specifications
  3. 03
    Submit Building Permit Application and construction documents to Town Hall
  4. 04
    Town reviews for compliance with Plains ordinances and adopted building standards
  5. 05
    Upon approval, obtain permit and pay associated fees
  6. 06
    Proceed with construction per approved plans
  7. 07
    Schedule required inspections with town
  8. 08
    After passing all required inspections, obtain certificate of occupancy

Typical processing time: Approximately 3 weeks (standard Montana state review timeframe; local may vary)

Source: Town of Plains Building/Permitting Department ↗

§ 04

Required inspections

Scheduling and sequence

How to schedule
  • Contact (406) 826-3411 to schedule inspections (phone)
Inspection hours
Monday-Friday 9:00 a.m. to 5:00 p.m.

Typical sequence: Typical inspection sequence: foundation, framing, electrical, plumbing, mechanical, and final. Town Hall coordinates scheduling. Final inspection approval required before certificate of occupancy

Source: Town of Plains Building/Permitting Department ↗

§ 05

Frequently asked

Common questions about Plains permits

01 Do I need a building permit in Plains, MT? ▸
New construction, additions, alterations, renovations, repairs, demolition, and structural modifications
02 How do I apply for a building permit in Plains, MT? ▸
To apply for a building permit in Plains, MT, follow these steps: 1. Contact Town of Plains Town Hall to determine local vs. state jurisdiction 2. Prepare required construction documents: plans, drawings, site plans, specifications 3. Submit Building Permit Application and construction documents to Town Hall 4. Town reviews for compliance with Plains ordinances and adopted building standards 5. Upon approval, obtain permit and pay associated fees 6. Proceed with construction per approved plans 7. Schedule required inspections with town 8. After passing all required inspections, obtain certificate of occupancy
03 How long does it take to get a building permit in Plains, MT? ▸
Building permit processing times in Plains, MT typically run Approximately 3 weeks (standard Montana state review timeframe; local may vary). Timelines can vary based on project complexity and current department workload.
04 What work is exempt from building permits in Plains, MT? ▸
Not all construction work requires a permit in Plains, MT. The following work is generally exempt: Farm and ranch buildings; Mining buildings on mining property; Petroleum refineries and pulp and paper mills (except office/shop buildings); Residential buildings under five dwelling units (except transient use); Private garages and storage buildings for owner's personal use; Agricultural structures per state exemptions. Note: Trade permits required where applicable (electrical, plumbing, mechanical). Per Montana state law applicable in town When in doubt, confirm with the local building department before starting work.
05 How do I schedule a building inspection in Plains, MT? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Plains, MT via: Contact (406) 826-3411 to schedule inspections.
last verified March 2026 source Town of Plains Building/Permitting Department ↗ entry id permits/montana/sanders/plains
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Educational reference. Permit rules and fees change — confirm current requirements directly with Town of Plains Building/Permitting Department before applying. Jaspector is not legal advice.

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