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Plumbing Permit in Unincorporated Cache County, Utah

Required for plumbing installations, alterations, and repairs including water heater replacement in unincorporated Cache County. Governed by the 2024 International Plumbing Code (IPC) as adopted by Utah Code § 15A-2-103, effective July 1, 2026 (2021 edition governed through June 30, 2026). The fee schedule lists water heater replacement as its own line item at $75.

Verified 2026-07-17 · Source

When you need this permit

  • Water heater installation or replacement
  • New plumbing fixture installations
  • Water line or sewer line replacement or extension
  • Gas line installation or modification
  • Backflow prevention device installation

Required documents

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Fee schedule

Water Heater Replacement (Residential)Cache County Building Division Fee Schedule, Ord. 2024-18 (adopted 11/6/2024). Flat fee, its own line item in the RESIDENTIAL PERMITS table (fee schedule PDF re-fetched and re-confirmed live 2026-07-01; re-confirmed again live 2026-07-17, unchanged).
$75
State SurchargeCache County Building Division Fee Schedule, Ord. 2024-18
1% of permit fee
Re-Inspection FeeCache County Building Division Fee Schedule, Ord. 2024-18
$75

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Cache County building department
~3–10 business days

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

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

Inspection process

  1. 1

    Underground / Slab

    Before concrete pour — verify pipe slope, materials, and cleanouts

  2. 2

    Rough-In

    After pipes installed, before walls closed — pressure test required

  3. 3

    Final

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

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

Tips

  • Water heater replacements in unincorporated Cache County require a permit even for like-for-like swaps — fee is $75 per Ord. 2024-18.
  • Utah allows homeowners to perform plumbing work on their own primary residence but a permit and inspection are still required.
  • Seismic strapping is required for water heaters in Utah — two straps at upper third and lower third of the tank.
  • T&P relief valve discharge must terminate within 6 inches of the floor or to the exterior per the adopted IPC.

Frequently asked questions

Yes. Cache County requires a permit for all water heater replacements, including like-for-like swaps. The fee is $75 per the Building Division Fee Schedule (Ord. 2024-18, adopted 11/6/2024), plus 1% state surcharge.

In Unincorporated Cache County, the published Water Heater Replacement (Residential) is: $75. Additional published fees: State Surcharge — 1% of permit fee; Re-Inspection Fee — $75. 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 Cache County typically runs 3–10 business days. This is an estimate, not a published figure — confirm current review times with Cache County Building Division at (435) 755-1650.

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

Unincorporated Cache County requires 3 inspection(s) for a plumbing permit, in order: Underground / Slab, Rough-In, Final. Schedule each through Cache County Building Division ((435) 755-1650).

Apply through Cache County Building Division at 179 N Main St, Suite 305, Logan, UT 84321. Phone: (435) 755-1650, email: cachecountyplanreview@gmail.com. Office hours: Mon–Fri 8:00 AM – 5:00 PM (permit pickup/payment ends at 4:45 PM). Official information: https://www.cachecounty.gov/building/.

Unincorporated Cache County, Utah has adopted: 2024 International Building Code (IBC), including Appendices C and J — Utah Code § 15A-2-103(1)(a); current edition as of July 1, 2026 (2021 edition governed through June 30, 2026); 2021 International Residential Code (IRC), plus Appendix AQ of the 2021 IRC — Utah Code § 15A-2-103(1)(b)/(c); unchanged by the July 1, 2026 revision — still the current edition; 2024 International Plumbing Code (IPC) — Utah Code § 15A-2-103(1)(d); current edition as of July 1, 2026 (2021 edition governed through June 30, 2026); 2024 International Mechanical Code (IMC) — Utah Code § 15A-2-103(1)(e); current edition as of July 1, 2026 (2021 edition governed through June 30, 2026); 2024 International Fuel Gas Code (IFGC) — Utah Code § 15A-2-103(1)(f); current edition as of July 1, 2026 (2021 edition governed through June 30, 2026); 2024 International Energy Conservation Code (IECC) — Utah Code § 15A-2-103(1)(h); current edition as of July 1, 2026 (2021 edition governed through June 30, 2026); statute has no residential/commercial split — one edition applies to both. NOTE (county page live-checked 2026-07-16): the Cache County Building Code Information page lists 2024 IECC in its main statewide-codes list but separately carries a 'Residential Code: 2021 IRC and the 2021 IECC' line for dwellings up to a duplex — that residential IECC carve-out lags the statute, which adopts a single 2024 IECC edition with no residential/commercial split; the statewide 2024 IECC governs.; 2024 International Existing Building Code (IEBC) — Utah Code § 15A-2-103(1)(i); current edition as of July 1, 2026 (2021 edition governed through June 30, 2026); 2024 International Swimming Pool and Spa Code (ISPSC), residential provisions — Utah Code § 15A-2-103(1)(n); current edition as of July 1, 2026 (2021 edition governed through June 30, 2026); 2023 National Electrical Code (NEC) — Utah Code § 15A-2-103(1)(g); statewide in force, unchanged by the July 1, 2026 revision. NOTE: The Cache County Building Code Information page (last seen 2026-06-30) still lists '2020 NEC' — that page is not updated; the statewide 2023 NEC is the legally in-force edition.; NOTE (verified 2026-07-16 against the live Utah Code § 15A-2-103 text, version headed 'Effective 7/1/2026 / Superseded 1/1/2027'): the 2024 editions of IBC, IPC, IMC, IFGC, IECC, IEBC, and ISPSC listed above took effect July 1, 2026, replacing the 2021 editions; IRC (2021) and NEC (2023) did not change. The 1/1/2027 version of the statute carries identical editions, so no further flip is expected then. This file previously forecast this change but still led with the 2021 editions as current — corrected on this date..

Sources & verification

Verified against official sources. Last reviewed 2026-07-17.

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

Other permits in Unincorporated Cache County

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