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Plumbing Permit in Unincorporated Davis County, Utah

Required for plumbing installations, alterations, and repairs in Unincorporated Davis County including water heaters, fixture additions, gas lines, and re-pipes. Davis County uses a unified building permit for all trades — include plumbing scope in the building permit application.

Verified 2026-07-01 · Source

When you need this permit

  • New plumbing fixture installations
  • Water heater installation or replacement
  • Water line or sewer line replacement or extension
  • Gas line installation or modification
  • Backflow prevention device installation
  • Any work on plumbing systems per Davis County Code § 15.01.330

Required documents

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Fee schedule

Water heater replacement / simple plumbing (one inspection, no plan check, no bond)Grounded verbatim on the live Davis County Building Permits page (fetched 2026-07-01): 'Permits that require no plan check review, construction bond, and just one inspection; are the minimum $202.' This category (simple, single-inspection, no-bond plumbing work such as a water heater swap) falls under that published minimum. The codified fee schedule PDF (§ 2.48.050, Ord. 4-2017) lists a $200.00 base minimum; the county's current webpage publishes $202 as the applicable figure. Source: daviscountyutah.gov/ced/planning/building-permits.
$202.00 minimum
Plumbing scope included in building permit (new construction / major remodel)Include plumbing valuation in total project valuation and apply the standard permit fee table.
Valuation-based per the Davis County Building Permit Fee Schedule (§ 2.48.050, Ord. No. 4-2017)
Plan ReviewDavis County Code § 2.48.050(A). May not apply to simple one-inspection permits.
65% of the building permit fee, or actual cost, whichever is less

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Davis County building department
~1–10 business days

How long did your Plumbing Permit permit actually take in Unincorporated Davis County?

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

Inspection process

  1. 1

    Underground Plumbing & Test

    Before slab/backfill — verify pipe slope, materials, and cleanouts

  2. 2

    Rough Plumbing & Test

    After pipes installed, before walls closed — pressure test required

  3. 3

    Final Plumbing

    All fixtures connected, water flowing, no leaks, proper venting verified

See the full Unincorporated Davis County inspection guide — scheduling & re-inspection fees →

Tips

  • Water heater replacements require a permit in Unincorporated Davis County — this is a common source of questions. Apply at daviscounty.portal.iworq.net.
  • Gas line work is part of the plumbing scope — include it in your building permit application and budget for a Gas Line Air Test inspection.
  • Utah allows homeowners to perform plumbing work on their own primary residence, but a permit and inspection are still required.
  • Davis County follows the statewide adopted plumbing codes: 2021 IPC through June 30, 2026; 2024 IPC effective July 1, 2026.

Frequently asked questions

Yes. All water heater installations and replacements, including like-for-like swaps, require a permit from Davis County. Apply at daviscounty.portal.iworq.net. The minimum fee is approximately $202 for a simple swap (one inspection, no plan review, no bond). Call (801) 451-3278 to confirm.

In Unincorporated Davis County, the published Water heater replacement / simple plumbing (one inspection, no plan check, no bond) is: $202.00 minimum. Additional published fees: Plumbing scope included in building permit (new construction / major remodel) — Valuation-based per the Davis County Building Permit Fee Schedule (§ 2.48.050, Ord. No. 4-2017); Plan Review — 65% of the building permit fee, or actual cost, whichever is less. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a plumbing permit in Unincorporated Davis County typically runs 1–10 business days. This is an estimate, not a published figure — confirm current review times with Davis County Community & Economic Development — Planning & Zoning at (801) 451-3278.

You'll need: Building Permit Application (iworq). Depending on your project, Unincorporated Davis County may also ask for: Plumbing Plan; Contractor DOPL License. See the required-documents checklist on this page for details on each.

Unincorporated Davis County requires 3 inspection(s) for a plumbing permit, in order: Underground Plumbing & Test, Rough Plumbing & Test, Final Plumbing. Schedule each through Davis County Community & Economic Development — Planning & Zoning ((801) 451-3278).

Apply through Davis County Community & Economic Development — Planning & Zoning at 61 South Main Street, Suite 304, Farmington, UT 84025. Phone: (801) 451-3278, email: planning@daviscountyutah.gov. Office hours: Mon–Fri 8:00 AM – 5:00 PM. Official information: https://www.daviscountyutah.gov/ced/planning/building-permits.

Unincorporated Davis County, Utah has adopted: 2024 International Building Code (IBC) — Utah Code § 15A-2-103(1)(a); effective July 1, 2026 (replaces 2021 IBC); 2021 International Residential Code (IRC) — Utah Code § 15A-2-103(1)(b); remains in force after July 1, 2026; 2024 International Plumbing Code (IPC) — Utah Code § 15A-2-103(1)(d); effective July 1, 2026 (replaces 2021 IPC); 2024 International Mechanical Code (IMC) — Utah Code § 15A-2-103(1)(e); effective July 1, 2026 (replaces 2021 IMC); 2024 International Fuel Gas Code (IFGC) — Utah Code § 15A-2-103(1)(f); effective July 1, 2026 (replaces 2021 IFGC); 2023 National Electrical Code (NEC) — Utah Code § 15A-2-103(1)(g); statewide in force. NOTE: Davis County's own website does not list a specific NEC edition — the statewide 2023 NEC is the legally in-force edition.; 2024 International Energy Conservation Code (IECC) — Utah Code § 15A-2-103(1)(h); effective July 1, 2026 (replaces 2021 IECC); Utah residential energy provisions effectively follow 2015 IECC residential; 2024 International Existing Building Code (IEBC) — Utah Code § 15A-2-103(1)(i); effective July 1, 2026 (replaces 2021 IEBC); 2024 International Swimming Pool and Spa Code (ISPSC), residential provisions — Utah Code § 15A-2-103(1)(n); effective July 1, 2026; NOTE: Through June 30, 2026, the 2021 editions of IBC, IPC, IMC, IFGC, IECC, IEBC, and ISPSC are in force per Utah Code § 15A-2-103 (version effective through 6/30/2026). Local amendments apply — see the Unincorporated Davis County overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-01.

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

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