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Fire Sprinkler System Permit in Unincorporated Natrona County, Wyoming

Construction permit required from the Natrona County Fire Protection District (NCFPD) Office of the Fire Marshal before installing or modifying a fire sprinkler system in unincorporated Natrona County, under the adopted 2024 International Fire Code § 105.6 and NFPA 13/13R/13D (2025 edition). Processed separately from the county Building Department's building/plumbing permits, through the district's own NCFPDpermits.com web portal.

Verified 2026-07-22 · Source

When you need this permit

  • Submit a Construction Permit application through the NCFPDpermits.com web portal to the NCFPD Office of the Fire Marshal before installing or modifying a fire sprinkler system, per adopted 2024 International Fire Code § 105.6
  • Permit fee is based on total sprinkler head count for the system being installed or modified
  • Reviewed under NFPA 13/13R/13D (2025 edition) as referenced by the adopted 2024 IFC
  • Fire standpipes ($25 per outlet) and fire pumps ($150 per pump) are billed as additional fees alongside the initial sprinkler permit if included in the project
  • If the installation spans multiple floors, an additional per-floor charge applies for each floor above or below the first floor
  • All required inspections, including acceptance testing, must be requested in advance (24–48 hours) through the NCFPDpermits.com portal — the initial permit fee covers plan review and all required inspections
  • Work started without a valid permit is subject to a doubled fee for each fire protection system installed
  • Construction permits become invalid if work is not commenced within 180 days of issuance, or if work is suspended/abandoned for 180 days after commencing

Required documents

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Fee schedule

NEW Fire Sprinkler System — 1-10 headsNCFPD Office of the Fire Marshal Construction Permit fee schedule, effective as of July 20, 2026; fee includes plan review and all required inspections including acceptance testing
$425.00
NEW Fire Sprinkler System — 11-20 heads
$450.00
NEW Fire Sprinkler System — 21-200 heads
$500.00
NEW Fire Sprinkler System — 201+ heads
$600.00
Modified Fire Sprinkler System — 20+ heads
$225.00
Additional floor charge (new or modified)
$25.00 per floor above or below the first floor
Fire StandpipeAdditional fee alongside the initial sprinkler permit
$25.00 per outlet
Fire PumpAdditional fee alongside the initial sprinkler permit
$150.00 per pump
Work started without a valid permit
Doubled fee for each fire protection system installed

Review timeline

Plan review
Not published — contact the department

How long did your Fire Sprinkler System Permit permit actually take in Unincorporated Natrona County?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Rough-In / Underground

    Piping and underground supply inspected before concealment or backfill, if applicable

  2. 2

    Acceptance Test

    Full hydrostatic and system acceptance testing per NFPA 13/13R/13D, required before the permit is closed out; must be scheduled 24-48 hours in advance through the NCFPDpermits.com portal

See the full Unincorporated Natrona County inspection guide — scheduling & re-inspection fees →

Tips

  • Fire sprinkler permits are handled entirely by NCFPD, not the county Building Department — apply and schedule inspections through NCFPDpermits.com.
  • Fee is driven by sprinkler head count, not job valuation: $425 for a small (1-10 head) system up to $600 for a large (201+ head) system, plus separate per-outlet standpipe and per-pump fire pump charges if those are part of the project.
  • As with fire alarms, starting sprinkler work without a valid NCFPD permit doubles the fee for each system installed, on top of any separate Building Department penalty.

Frequently asked questions

Unincorporated Natrona County requires a fire sprinkler system permit for: Submit a Construction Permit application through the NCFPDpermits.com web portal to the NCFPD Office of the Fire Marshal before installing or modifying a fire sprinkler system, per adopted 2024 International Fire Code § 105.6; Permit fee is based on total sprinkler head count for the system being installed or modified; Reviewed under NFPA 13/13R/13D (2025 edition) as referenced by the adopted 2024 IFC; Fire standpipes ($25 per outlet) and fire pumps ($150 per pump) are billed as additional fees alongside the initial sprinkler permit if included in the project; If the installation spans multiple floors, an additional per-floor charge applies for each floor above or below the first floor; All required inspections, including acceptance testing, must be requested in advance (24–48 hours) through the NCFPDpermits.com portal — the initial permit fee covers plan review and all required inspections; Work started without a valid permit is subject to a doubled fee for each fire protection system installed; Construction permits become invalid if work is not commenced within 180 days of issuance, or if work is suspended/abandoned for 180 days after commencing. If your project isn't listed, confirm with Natrona County Building Department at (307) 235-9435 before starting work.

Fees are based on sprinkler head count: $425 for 1-10 heads up to $600 for 201+ heads (new systems), or $225 for a modified system with 20+ heads, plus $25 per floor for multi-floor installations. Standpipes ($25/outlet) and fire pumps ($150/pump) are billed as additional fees.

Unincorporated Natrona County does not publish a plan-review timeline for this permit. Contact Natrona County Building Department at (307) 235-9435 for current turnaround.

You'll need: NCFPD Fire Sprinkler Submittal Requirements; Fire sprinkler system plans. See the required-documents checklist on this page for details on each.

Unincorporated Natrona County requires 2 inspection(s) for a fire sprinkler system permit, in order: Rough-In / Underground, Acceptance Test. Schedule each through Natrona County Building Department ((307) 235-9435).

Apply through Natrona County Building Department at 200 N. Center St, Room 205, Casper, WY 82601. Phone: (307) 235-9435, email: Contact via natronacounty-wy.gov (email obfuscated on site; call 307-235-9435). Office hours: Monday–Friday, 8:00 AM–5:00 PM. Official information: https://www.natronacounty-wy.gov/170/Building-Inspection.

Unincorporated Natrona County, Wyoming has adopted: 2024 International Building Code (IBC) — adopted by Resolution 84-24; 2024 International Residential Code (IRC) — adopted by Resolution 90-24; 2024 International Existing Building Code (IEBC) — adopted by Resolution 85-24; 2024 International Fire Code (IFC) — adopted by Resolution 86-24; 2024 International Fuel Gas Code (IFGC) — adopted by Resolution 87-24; 2024 International Mechanical Code (IMC) — adopted by Resolution 88-24; 2024 International Plumbing Code (IPC) — adopted by Resolution 89-24; 2023 National Electrical Code (NEC / NFPA 70) — adopted by county resolution. Local amendments apply — see the Unincorporated Natrona County overview page for the full list.

The Natrona County Fire Protection District (NCFPD) Office of the Fire Marshal, through the NCFPDpermits.com web portal, under the adopted 2024 International Fire Code and NFPA 13/13R/13D (2025 edition) — not the county Building Department.

Sources & verification

Verified against official sources. Last reviewed 2026-07-22.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Unincorporated Natrona County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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