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Fire Sprinkler / Fire Alarm System Permit in Longmont, Colorado

The City of Longmont operates its own Fire Department, Fire Prevention Division (285/385 Kimbark Street, Safety & Justice Building, 303-774-4471), which publishes detailed fire sprinkler submittal requirements: a completed Longmont Fire Department permit application (submittals are not queued for review until complete), two complete sets of fire sprinkler plans and hydraulic calculations, a 45-second alarm delay from flow switch actuation coordinated with the fire alarm technician on-site for testing, and the permit on site at all times. Construction permit fees are $200.00 per riser, control panel, power supply, pump, or tank, plus $1.00 per system device.

Verified 2026-08-14 · Source

When you need this permit

  • Completed Longmont Fire Department permit application — submittals are NOT placed into the review queue until a complete application is received
  • Two complete sets of fire sprinkler plans and hydraulic calculations submitted; one set retained by the fire department, the second (stamped/approved) returned to the applicant
  • 45-second alarm delay required from the time of flow switch actuation; testing must be coordinated by the installer to ensure the fire alarm technician is on site
  • The permit holder is the only party who may request inspections and is responsible for any additional fees incurred
  • The permit must be on site at all times
  • Submit to the Fire Prevention Division, 385 Kimbark Street, Safety & Justice Building

Required documents

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Fee schedule

Construction Permit Fee — per riser, control panel, power supply, pump, or tankLongmont Fire Department — Construction Permit Fees
$200.00 each
Construction Permit Fee — per system deviceLongmont Fire Department — Construction Permit Fees
$1.00 each

Review timeline

Plan review
Not published — contact the department

How long did your Fire Sprinkler / Fire Alarm System Permit permit actually take in Longmont?

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

Inspection process

    See the full Longmont inspection guide — scheduling & re-inspection fees →

    Tips

    • Longmont Fire Department will not even start reviewing an incomplete sprinkler submittal — it stays out of the queue entirely until complete, so a partial or missing-document submission costs you queue position, not just a rejection.
    • The 45-second alarm delay from flow switch actuation is a specific, citable Longmont Fire Department requirement — coordinate your fire alarm technician's on-site presence for testing around this rule.

    Frequently asked questions

    Longmont requires a fire sprinkler / fire alarm system permit for: Completed Longmont Fire Department permit application — submittals are NOT placed into the review queue until a complete application is received; Two complete sets of fire sprinkler plans and hydraulic calculations submitted; one set retained by the fire department, the second (stamped/approved) returned to the applicant; 45-second alarm delay required from the time of flow switch actuation; testing must be coordinated by the installer to ensure the fire alarm technician is on site; The permit holder is the only party who may request inspections and is responsible for any additional fees incurred; The permit must be on site at all times; Submit to the Fire Prevention Division, 385 Kimbark Street, Safety & Justice Building. If your project isn't listed, confirm with City of Longmont — Building Services (Building Inspection Division), Development Services Center at (303) 651-8332 before starting work.

    $200.00 per riser, control panel, power supply, pump, or tank, plus $1.00 per system device, per the Longmont Fire Department's Construction Permit Fees. Two complete sets of plans and hydraulic calculations must be submitted to the Fire Prevention Division (385 Kimbark Street); call 303-774-4471 with questions.

    Longmont does not publish a plan-review timeline for this permit. Contact City of Longmont — Building Services (Building Inspection Division), Development Services Center at (303) 651-8332 for current turnaround.

    You'll need: Longmont Fire Department Permit Application. See the required-documents checklist on this page for details on each.

    Apply through City of Longmont — Building Services (Building Inspection Division), Development Services Center at 385 Kimbark St., Longmont, CO 80501. Phone: (303) 651-8332, email: building.inspection@longmontcolorado.gov. Office hours: Mon–Fri, 8 a.m.–5 p.m. (closed Federal holidays, Veterans Day, and the day after Thanksgiving; Building Inspection closed 10–11 a.m. on the 2nd and 4th Thursday for staff training). Official information: https://longmontcolorado.gov/building-inspection/permits/.

    Longmont, Colorado has adopted: 2021 International Building Code (IBC) — adopted effective January 1, 2022; currently in force citywide; 2021 International Residential Code (IRC) — adopted effective January 1, 2022; currently in force citywide; 2021 International Energy Conservation Code (IECC) — adopted as part of the 2021 International Codes package effective January 1, 2022; 2021 International Fire Code (IFC) — adopted effective January 1, 2022; International Plumbing Code (IPC) and International Mechanical Code (IMC) / International Fuel Gas Code (IFGC) — adopted as part of the 2021 International Codes package effective January 1, 2022 (edition confirmed via Longmont's 2021 IBC/IRC Geographic Climatic Data Table; individual plumbing/mechanical/fuel-gas amendment ordinance text not independently re-verified beyond the city's codes-adoption page); 2023 National Electrical Code (NEC) — adopted with Longmont amendments, effective July 24, 2024; PENDING — NOT YET EFFECTIVE: 2024 International Codes plus the Colorado Energy Code Cohort's model amendments were scheduled for Longmont City Council consideration May 12, 2026, with an anticipated effective date of July 1, 2026. As of this extraction (lastVerified 2026-06-30), the City's own Building Code Update page still describes this as a pending/anticipated action, not a confirmed adopted-and-effective ordinance — DO NOT treat the 2024 codes as adopted until the city's codes page or Municode ordinance list confirms passage.. Local amendments apply — see the Longmont overview page for the full list.

    Sources & verification

    Verified against official sources. Last reviewed 2026-08-14.

    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 Longmont building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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