Plumbing Permit (incl. Water Heater) in Peoria, Arizona
Plumbing work in Peoria is governed by the 2018 International Plumbing Code (IPC) as adopted with City amendments per Ordinance 2019-12. Residential plumbing work for miscellaneous scopes (water heater replacement, fixture additions, etc.) is permitted via the 400M – Miscellaneous Building Permit Application submitted online at devservices.peoriaaz.gov. Permit fees are valuation-based under the Development Fee Schedule.
Verified 2026-06-29 · Source
When you need this permit
- Plumbing work must comply with the 2018 IPC as adopted with City amendments per Ordinance 2019-12
- Submit online at devservices.peoriaaz.gov with a 400M – Miscellaneous Building Permit Application for standalone plumbing scopes
- Underground plumbing must pass a pressure test (soils lines at 5-foot head pressure; water service at operating pressure or 50 psi minimum for 15 minutes) before backfill
- Proper material, fittings, slope, cleanouts, and trap arm lengths per 2018 IPC; copper and plastic piping must be sleeved at all IBF cross-overs
Required documents
- Req
400M – Miscellaneous Building Permit Application
Used for standalone plumbing scopes including water heater replacement, fixture additions, and other miscellaneous plumbing work
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Plumbing / water heater permit — valuation-based | Minimum fee $87. Valuation-based permit fee per Development Fee Schedule. There is no separate flat-fee plumbing schedule; valuation is based on the scope of work. | Peoria Development Fee Schedule, Rev. 9/2025. Plan check fee is an additional 65% of the permit fee. |
| Re-inspection fee | $230 per re-inspection | Peoria Development Fee Schedule, Rev. 9/2025. |
Review timeline
5–5 business days
Peoria’s published plan-review target
Inspection process
- 1
Underground Plumbing
Before backfill: sewer material, size, slope, cleanouts; soils/water service lines with pressure test (5-foot head for soils; 50 psi minimum for water for 15 minutes); gas lines sleeved and vented under slab. Proper bedding and shading required.
- 2
Rough Plumbing (water and air test)
Water or air test is required on plumbing lines before they are covered, per the Peoria inspection sequence for attached/detached structures (Handout 508).
- 3
Final Plumbing
All plumbing fixtures installed; T&P drain for water heater terminates 6 inches above finish grade to exterior; all hose bibbs installed with vacuum breakers; A/C condensate drains installed to exterior.
Tips
- Peoria adopted the 2018 IPC (not UPC) with City amendments per Ordinance 2019-12.
- Underground plumbing requires a pressure test before backfill: 5-foot head pressure test for soils lines; water service tested at operating pressure or 50 psi minimum for 15 minutes.
- Copper and plastic piping must be sleeved at all interior bearing footing (IBF) cross-overs and protected where perpendicular to an IBF.
Frequently asked questions
- Do I need a permit to replace a water heater in Peoria?
- Yes. A plumbing permit is required for water heater replacement. Submit a 400M – Miscellaneous Building Permit Application online at devservices.peoriaaz.gov. The permit fee is valuation-based with an $87 minimum. Source: City of Peoria Plan Review and Building Permits page and Peoria Development Fee Schedule, Rev. 9/2025.
Sources & verification
Verified against official sources. Last reviewed 2026-06-29.
- City of Peoria Development & Engineering Department — Building Development — official building department
- 2018 IPC (Amended) — PDF | City of Peoria (Wayback July 2025)
- 208 – Residential Inspection Checklist (Handout 208, Rev. 12/2020) — PDF | City of Peoria (Wayback June 2025)
- Development Fee Schedule (Rev. 9/2025) — PDF | City of Peoria (current official)
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 Peoria building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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