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Change of Use / Change of Occupancy in Frederick, Colorado

Frederick-Firestone Fire Protection District (FFFPD) explicitly lists 'change of use' among the proposed modifications to an existing building that trigger its own building construction permit requirement, per the District's 2024 Fee Schedule (which states FFFPD issues building construction permits for new construction or any proposed modifications to an existing building, such as a remodel, tenant finish, or change of use). The Town of Frederick itself does not publish a standalone municipal 'Change of Use' permit application separate from its general building permit process; a use/occupancy change is governed by the Town's adopted 2024 International Existing Building Code (IEBC) and processed through the standard municipal Building Permit Application, in addition to the separate FFFPD fire-protection-system building construction permit described above where applicable.

Verified 2026-08-13 · Source

When you need this permit

  • FFFPD's own 2024 Fee Schedule explicitly names 'change of use' as a type of proposed modification to an existing building that triggers the District's Building Construction Plan Review and Permit Fee — a separate FFFPD permit, in addition to any Town of Frederick municipal permit, for projects within the FFFPD response area (Town of Frederick, Town of Firestone, and portions of Weld County)
  • FFFPD Building Construction Plan Review, Permit, and Inspection Fees are assessed at 0.0017 (0.17%) times the reported project value, with a minimum fee of $200.00; FFFPD building construction permits are NOT required to construct, remodel, or renovate one- or two-family homes, townhomes
  • No standalone Town of Frederick municipal 'Change of Use' or 'Change of Occupancy' application separate from the general Building Permit Application was found published on the Town's Building Codes or Permits pages
  • The Town's own adopted 2024 International Existing Building Code (IEBC) governs change-of-occupancy classification requirements for the municipal building-permit component of a use change
  • Processed through the standard Town of Frederick Building Permit Application for the municipal component; contact the Building Department (720-382-5516) to confirm requirements for a specific project

Required documents

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Fee schedule

FFFPD Building Construction Plan Review, Permit, and Inspection FeePer the FFFPD 2024 Fee Schedule; not required for one- or two-family homes or townhomes
0.0017 (0.17%) of reported project value, minimum $200.00
Town of Frederick Building Permit Fee (municipal component)Contact the Building Department (720-382-5516) for a project-specific quote
Not published as a standalone change-of-use fee line

Review timeline

Plan review
Not published — contact the department

How long did your Change of Use / Change of Occupancy permit actually take in Frederick?

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

Inspection process

  1. 1

    Final Inspection / Certificate of Occupancy

    A Certificate of Occupancy reflecting the new use must be issued before occupancy under the new classification; both the Town's municipal building-permit final inspection and any applicable FFFPD building-construction inspection apply

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

Tips

  • In Frederick the local fire protection district (FFFPD), not just the municipal building department, explicitly names 'change of use' as a category triggering its own separate building construction permit. Budget for both the Town's municipal permit and FFFPD's building construction permit on a change-of-use project.
  • FFFPD's building construction permit is not required for one- or two-family homes or townhomes — this exemption is specific to FFFPD's own permit, not necessarily the Town's municipal requirements.
  • Call the Building Department (720-382-5516) and FFFPD (email fireprevention@fffd.us) before assuming which of the two separate permit processes applies to a specific change-of-use project.

Frequently asked questions

Frederick requires a change of use / change of occupancy permit for: FFFPD's own 2024 Fee Schedule explicitly names 'change of use' as a type of proposed modification to an existing building that triggers the District's Building Construction Plan Review and Permit Fee — a separate FFFPD permit, in addition to any Town of Frederick municipal permit, for projects within the FFFPD response area (Town of Frederick, Town of Firestone, and portions of Weld County); FFFPD Building Construction Plan Review, Permit, and Inspection Fees are assessed at 0.0017 (0.17%) times the reported project value, with a minimum fee of $200.00; FFFPD building construction permits are NOT required to construct, remodel, or renovate one- or two-family homes, townhomes; No standalone Town of Frederick municipal 'Change of Use' or 'Change of Occupancy' application separate from the general Building Permit Application was found published on the Town's Building Codes or Permits pages; The Town's own adopted 2024 International Existing Building Code (IEBC) governs change-of-occupancy classification requirements for the municipal building-permit component of a use change; Processed through the standard Town of Frederick Building Permit Application for the municipal component; contact the Building Department (720-382-5516) to confirm requirements for a specific project. If your project isn't listed, confirm with Town of Frederick Building Department at 720-382-5516 (general questions); 720-382-5620 (inspection request line) before starting work.

In Frederick, the published FFFPD Building Construction Plan Review, Permit, and Inspection Fee is: 0.0017 (0.17%) of reported project value, minimum $200.00. Additional published fees: Town of Frederick Building Permit Fee (municipal component) — Not published as a standalone change-of-use fee line. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Frederick does not publish a plan-review timeline for this permit. Contact Town of Frederick Building Department at 720-382-5516 (general questions); 720-382-5620 (inspection request line) for current turnaround.

You'll need: Town of Frederick Building Permit Application; FFFPD Application for Plan Review (Building Construction). See the required-documents checklist on this page for details on each.

Frederick requires 1 inspection(s) for a change of use / change of occupancy permit, in order: Final Inspection / Certificate of Occupancy. Schedule each through Town of Frederick Building Department (720-382-5516 (general questions); 720-382-5620 (inspection request line)).

Apply through Town of Frederick Building Department at 401 Locust Street, Frederick, CO 80530 (mailing: PO Box 435, Frederick, CO 80530). Phone: 720-382-5516 (general questions); 720-382-5620 (inspection request line), email: building@frederickco.gov. Office hours: Monday-Friday, 7:30 a.m. - 4:30 p.m. Chief Building Official: mtheile@FrederickCO.gov.. Official information: https://www.frederickco.gov/416/Building-Department.

Frederick, Colorado has adopted: 2024 International Building Code (IBC) — Town of Frederick Building Codes page; 2024 International Residential Code (IRC); 2024 International Fire Code (IFC); 2024 International Mechanical Code (IMC); 2024 International Fuel Gas Code (IFGC); 2024 International Plumbing Code (IPC); 2024 International Existing Building Code (IEBC); 2024 International Energy Conservation Code (IECC); 2024 International Swimming Pool and Spa Code (ISPSC); 2024 International Property Maintenance Code (IPMC); 2023 National Electrical Code (NEC); 2025 Colorado Wildfire Resiliency Code (as published by the State of Colorado Division of Fire Prevention and Control); Colorado Model Electric Ready and Solar Ready Code; All codes adopted with local amendments per Frederick Municipal Code, Chapter 18 (Buildings and Building Regulations) — Town of Frederick Building Codes page (frederickco.gov/141/Building-Codes); The Town's Residential/New Construction Building Permit Checklist still directs energy-code compliance to the 2021 IECC (REScheck, an energy rating report, or prescriptive HERS documentation), while the Town's Building Codes page lists the 2024 IECC as adopted. Treat the Building Codes page list — 2024 IBC, IRC, IECC, IMC, IPC, IFGC, IEBC, ISPSC, IPMC plus the 2023 NEC — as the governing adopted-code list, and confirm the current edition with the Building Department at 720-382-5516 before finalizing a code analysis, since the checklist has not been updated to match.. Local amendments apply — see the Frederick overview page for the full list.

No standalone Town-issued permit exists separate from the general Building Permit Application, governed by the Town's adopted 2024 IEBC. However, the Frederick-Firestone Fire Protection District (FFFPD) separately and explicitly lists 'change of use' as a project type requiring its own building construction permit, in addition to any Town permit.

Sources & verification

Verified against official sources. Last reviewed 2026-08-13.

Fee schedules

Department & other records

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

Property Access

Frederick's permit history is searchable by address

23,540 permits on record for Frederick — searchable by street address, with permit type, status, issued date and valuation where the city publishes them.

None of Frederick's records carry an issued date, so this history cannot be filtered or sorted by date. The permits are here and searchable by address — but “when” is not a question they can answer.

94% of Frederick's records carry a street address to match against, so a search that finds nothing here means we could not look — not that the property is clear.

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