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Change of Use / Certificate of Occupancy Permit in Peoria, Arizona

Required in Peoria whenever the existing use or occupancy classification of a building or portion of a building changes. Peoria's adopted 2018 International Building Code (Amended), Section 111.1, provides that a building or structure shall not be used or occupied, and a change in the existing use or occupancy classification of a building or structure or portion thereof shall not be made, until the building official has issued a certificate of occupancy. Peoria's simple 'C of O Only' building permit (application 400CofO) may be used ONLY where the proposed occupancy type is the same as the previous tenant's — a genuine change of occupancy type must go through a Tenant Improvement permit (application 400TI) instead.

Verified 2026-08-15 · Source

When you need this permit

  • 2018 International Building Code (Amended), Section 111.1 Use and occupancy, as adopted by City of Peoria Ordinance 2019-12: 'A building or structure shall not be used or occupied, and a change in the existing use or occupancy classification of a building or structure or portion thereof shall not be made, until the building official has issued a certificate of occupancy therefore as provided herein.'
  • Peoria's amended Section 111.1 carries two exceptions: certificates of occupancy are not required for work exempt from permits under Section 105.2, and are not required for one- and two-family residences (only final inspection approval and a utility clearance are required prior to occupancy)
  • The 'C of O Only' process (application 400CofO) may only be used if the proposed occupancy type is the same as the previous tenant's, and the tenant will occupy the suite 'as is' with no work — a change of occupancy type requires a Tenant Improvement permit (400TI) instead
  • C of O Only plan submittal must be made online at devservices.peoriaaz.gov and must include one copy of the existing floor plan showing: the spec suite or existing built-out floor plan with all rooms labeled; the occupancy type/use, occupant load, and square footage of the tenant space; the location of an existing high/low drinking fountain or bottled water cooler if the occupant load is 15 or fewer; the location of an existing service sink inside the suite or a community service sink provided by the landlord (for all occupancies except B and M with an occupant load of 15 or fewer); the location of existing ADA-compliant restroom(s); the location of fire extinguisher(s); and the location of existing exit sign(s) and exit door(s)
  • A separate letter signed by the tenant, stating what activities and uses will occur in the tenant space, must be included with the C of O submittal
  • If the suite has never been occupied with the same use, mechanical outside-air calculations from an architect or mechanical engineer in compliance with IMC Table 403.3 must be submitted for approval
  • Tenant suites with warehouse space must comply with the Peoria Fire-Medical Department Guideline and provide the information that guideline requests
  • Tenant Improvement submittals must include a project information block with the address, legal description or assessor's parcel number, and the EXISTING use, occupancy classification, type of construction, and building area; plus a description of the tenant's use with a parking analysis/statement verifying sufficient parking for the use on the property or within the center (City of Peoria Handout 509, Tenant Improvement Standards)
  • Because a change of occupancy classification can pull in fire protection requirements, note that a separate Fire Protection Permit is required for any modification to an existing fire protection system unless a Fire Department waiver has been provided

Required documents

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Fee schedule

Final Certificate of Occupancy (C of O)City of Peoria Code of Ordinances, FEE TABLE 27-6 (Development and Engineering Department, Building Safety), current through 2026 S-9, most recently amended by Ord. No. 2025-28, § 1(Exh. A), 11-4-25. Identical figure appears in the Development Fee Schedule (Rev. 9/2025), page 10, 'Building Permit Fees - Continued' — read from a rendered image of page 10, not from extracted text. The codified table and the PDF agree.
$173
Tenant Improvement — C of O only building permitCodified FEE TABLE 27-6, 'Tenant Improvement - (C of O only; Building Permit Fee) $259.00'; identical in the Development Fee Schedule (Rev. 9/2025) p.10.
$259
60-day Temporary, Conditional or Partial Certificate of OccupancyDevelopment Fee Schedule (Rev. 9/2025) p.10, '60-day Temporary, Conditional & Partial C of O'; codified FEE TABLE 27-6 records the same $1,150.00 as 'Temporary/Conditional/Partial Certificate of Occupancy (C of O)'. The codified table does not repeat the '60-day' qualifier that appears on the PDF.
$1,150
Tenant improvement building permit fee basis (valuation)Development Fee Schedule (Rev. 9/2025), page 12, Building Valuation Table — Continued, 'Tenant Improvements' — read from a rendered image of page 12. The resulting valuation is then run through the Permit Fee Calculation Table in codified FEE TABLE 27-6.
Major tenant improvement: 40% of the original tenant building area valuation. Minor tenant improvement: 20% of the original tenant building area valuation
Plan Check FeeCodified FEE TABLE 27-6, 'Plan Check (% of building permit fee) 65%'; identical in the Development Fee Schedule (Rev. 9/2025) p.9.
65% of the building permit fee
Minimum permit fee (all zero-valuation items)Codified FEE TABLE 27-6, current through 2026 S-9.
$87
Additional plan review required by changes, additions or revisions to plansCodified FEE TABLE 27-6, current through 2026 S-9.
$220 for the 2-hour minimum, then $110 per additional hour
Reinspection feeCodified FEE TABLE 27-6, current through 2026 S-9.
$230
Investigation of work without a valid permitCodified FEE TABLE 27-6; Development Fee Schedule (Rev. 9/2025) p.9 states the same.
$460 or the permit fee, whichever is greater

Review timeline

Plan reviewPeoria’s published plan-review target
2–12 business days

How long did your Change of Use / Certificate of Occupancy Permit permit actually take in Peoria?

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

    The building official issues the certificate of occupancy after inspection; Peoria's amended IBC Section 111.1 bars a change in the existing use or occupancy classification until that certificate is issued. Reinspections are $230 each (codified FEE TABLE 27-6).

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

Tips

  • Peoria's cheap, fast 'C of O Only' permit is a trap if you assume it covers a change of use — the 400CofO application states in its own header that the process 'may only be used if proposed occupancy type is the same as the previous tenant.' An actual change of occupancy type is a Tenant Improvement (400TI) permit.
  • That distinction is also the difference between a 2-business-day review (C of O Only) and a 12-business-day review (Commercial Tenant Improvement) on first submittal.
  • Peoria works a 4-day week — Monday through Thursday, 7am to 6pm, closed Fridays. Every published review timeline is in business days on that schedule, so 12 'days' is three calendar weeks.
  • A tenant use letter signed by the tenant, describing what activities and uses will occur in the space, is a required part of the submittal — not an optional narrative.
  • If the suite has never been occupied with the same use, you must supply mechanical outside-air calculations from an architect or mechanical engineer per IMC Table 403.3.
  • Warehouse space inside a tenant suite pulls in the Peoria Fire-Medical Department Guideline; the C of O application calls this out explicitly, and Peoria also offers a dedicated 'C of O Only Warehouse Submittal Application'.
  • Peoria's certificate-of-occupancy fees were cross-checked against both the Development Fee Schedule PDF (Rev. 9/2025) and the codified City Code FEE TABLE 27-6 (current through 2026 S-9, last amended Ord. No. 2025-28, 11-4-25); unlike the sign fees in Table 27-8, the two sources agree exactly on $173, $259, and $1,150.

Frequently asked questions

Peoria requires a change of use / certificate of occupancy permit for: 2018 International Building Code (Amended), Section 111.1 Use and occupancy, as adopted by City of Peoria Ordinance 2019-12: 'A building or structure shall not be used or occupied, and a change in the existing use or occupancy classification of a building or structure or portion thereof shall not be made, until the building official has issued a certificate of occupancy therefore as provided herein.'; Peoria's amended Section 111.1 carries two exceptions: certificates of occupancy are not required for work exempt from permits under Section 105.2, and are not required for one- and two-family residences (only final inspection approval and a utility clearance are required prior to occupancy); The 'C of O Only' process (application 400CofO) may only be used if the proposed occupancy type is the same as the previous tenant's, and the tenant will occupy the suite 'as is' with no work — a change of occupancy type requires a Tenant Improvement permit (400TI) instead; C of O Only plan submittal must be made online at devservices.peoriaaz.gov and must include one copy of the existing floor plan showing: the spec suite or existing built-out floor plan with all rooms labeled; the occupancy type/use, occupant load, and square footage of the tenant space; the location of an existing high/low drinking fountain or bottled water cooler if the occupant load is 15 or fewer; the location of an existing service sink inside the suite or a community service sink provided by the landlord (for all occupancies except B and M with an occupant load of 15 or fewer); the location of existing ADA-compliant restroom(s); the location of fire extinguisher(s); and the location of existing exit sign(s) and exit door(s); A separate letter signed by the tenant, stating what activities and uses will occur in the tenant space, must be included with the C of O submittal; If the suite has never been occupied with the same use, mechanical outside-air calculations from an architect or mechanical engineer in compliance with IMC Table 403.3 must be submitted for approval; Tenant suites with warehouse space must comply with the Peoria Fire-Medical Department Guideline and provide the information that guideline requests; Tenant Improvement submittals must include a project information block with the address, legal description or assessor's parcel number, and the EXISTING use, occupancy classification, type of construction, and building area; plus a description of the tenant's use with a parking analysis/statement verifying sufficient parking for the use on the property or within the center (City of Peoria Handout 509, Tenant Improvement Standards); Because a change of occupancy classification can pull in fire protection requirements, note that a separate Fire Protection Permit is required for any modification to an existing fire protection system unless a Fire Department waiver has been provided. If your project isn't listed, confirm with City of Peoria Development & Engineering Department — Building Development at 623-773-7225 before starting work.

In Peoria, the published Final Certificate of Occupancy (C of O) is: $173. Additional published fees: Tenant Improvement — C of O only building permit — $259; 60-day Temporary, Conditional or Partial Certificate of Occupancy — $1,150; Tenant improvement building permit fee basis (valuation) — Major tenant improvement: 40% of the original tenant building area valuation. Minor tenant improvement: 20% of the original tenant building area valuation; Plan Check Fee — 65% of the building permit fee; Minimum permit fee (all zero-valuation items) — $87; Additional plan review required by changes, additions or revisions to plans — $220 for the 2-hour minimum, then $110 per additional hour; Reinspection fee — $230; Investigation of work without a valid permit — $460 or the permit fee, whichever is greater. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Peoria's published plan-review target for a change of use / certificate of occupancy permit is 2–12 business days.

You'll need: 400TI — Tenant Improvement Application; Handout 509 — Tenant Improvement Standards; Handout 201 — Commercial Plan Submittal Guidelines and Checklist; Tenant use letter. Depending on your project, Peoria may also ask for: 400CofO — Certificate of Occupancy Only Application. See the required-documents checklist on this page for details on each.

Peoria requires 1 inspection(s) for a change of use / certificate of occupancy permit, in order: Final Inspection / Certificate of Occupancy. Schedule each through City of Peoria Development & Engineering Department — Building Development (623-773-7225).

Apply through City of Peoria Development & Engineering Department — Building Development at 9875 N. 85th Avenue, Peoria, AZ 85345. Phone: 623-773-7225, email: building.applications@peoriaaz.gov. Office hours: Monday – Thursday 7:00 AM – 6:00 PM (closed Fridays and holidays); Building inspectors available Monday – Thursday 6:00 AM – 2:30 PM. Official information: https://www.peoriaaz.gov/business/development-services/plan-review-and-permits.

Peoria, Arizona has adopted: 2018 International Building Code (IBC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2018 International Residential Code (IRC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2018 International Plumbing Code (IPC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2018 International Fuel Gas Code (IFGC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2018 International Mechanical Code (IMC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2018 International Energy Conservation Code (IECC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2018 International Property Maintenance Code (IPMC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2018 International Fire Code (IFC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2017 National Electrical Code (NEC), with City of Peoria amendments — adopted per Ordinance 2019-12; 2010 Americans with Disabilities Act Accessible Guidelines (ADAAG) — referenced for applicable projects; 2010 NFPA 13D — residential fire sprinkler systems (referenced in custom home requirements). Local amendments apply — see the Peoria overview page for the full list.