Plumbing Permit (Stand-Alone) in Mesa, Arizona
Stand-alone plumbing permits are required in Mesa for separate plumbing work not included in a building permit. Work must comply with the 2024 International Plumbing Code (IPC) with Mesa local amendments (Mesa City Code Title 4). Mesa publishes a 2024 IPC (Plumbing) Checklist for plan review guidance. Water heater replacements: replacing a gas or electric water heater with a like-for-like model of equal or lesser rating does NOT require a permit; replacing a traditional storage gas water heater with a tankless or on-demand gas water heater DOES require a permit. Gas utility notification is required before placing gas appliances into service.
Verified 2026-06-29 · Source
When you need this permit
- Plumbing work must comply with the 2024 IPC with Mesa local amendments (Mesa City Code Title 4)
- Stand-alone plumbing permits (not part of a building permit) use the Residential Rate Table or Commercial Rate Table based on valuation
- No permit required: 'like for like' gas or electric water heater replacement of equal or lesser rating
- Permit required: replacing a traditional (storage) gas water heater with a tankless or on-demand gas water heater
- Notification required to the serving Gas Utility before placing gas appliances into service
- Apply through the DIMES online permit system
Required documents
- Opt
2024 IPC (Plumbing) Checklist
Mesa Development Services review checklist for plumbing plan submissions; available on the Construction Forms, Guides & Checklists page
- Opt
Residential Gas Piping Checklist
Mesa-specific gas piping checklist for residential work; available on the Construction Forms, Guides & Checklists page
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Stand-alone plumbing permit — Residential Rate Table | $0–$8,333: $220; $8,334–$16,667: $330; $16,668–$24,999: $440; $25,000–$200,000: $500 plus $6/each $1,000 over $25,000 | Mesa Development Services Schedule of Fees and Charges (Dec 2025). Stand-alone permits use the Residential Rate Table for residential work. Valuation determined by applicant and verified by Plans Examiner. |
Review timeline
10–10 business days
Mesa’s published plan-review target
Inspection process
- 1
Plumbing inspection per stage
Inspections at each stage of plumbing work prior to cover. Schedule via DIMES, text to 480-644-2428, or phone.
Tips
- A 'like for like' gas or electric water heater replacement (equal or lesser rating) does NOT require a permit in Mesa.
- Replacing a storage gas water heater with a tankless/on-demand gas water heater DOES require a permit.
- Notify your Gas Utility (Mesa Gas: 480-644-2221; Southwest Gas: 877-860-6020) before placing gas appliances into service.
- Mesa publishes a 2024 IPC (Plumbing) Checklist and a Residential Gas Piping Checklist — available on the Construction Forms, Guides & Checklists page.
Frequently asked questions
- Do I need a permit to replace a water heater in Mesa?
- No permit is required for a 'like for like' replacement of a gas or electric water heater with a model of equal or lesser rating. A permit IS required if you are replacing a traditional storage gas water heater with a tankless or on-demand gas model. Notify the gas utility before placing any gas appliance into service. Source: City of Mesa Residential Construction FAQ.
Sources & verification
Verified against official sources. Last reviewed 2026-06-29.
- City of Mesa Development Services Department — Permit Services — official building department
- Residential Construction FAQ (water heater) | City of Mesa
- 2024 IPC (Plumbing) Checklist — PDF | City of Mesa
- Residential Gas Piping Checklist — PDF | City of Mesa
- Development Services Schedule of Fees and Charges (Dec 2025) — PDF
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 Mesa building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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