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Deck Permit in Unincorporated Cache County, Utah

Required for new deck, patio, or covered porch construction in unincorporated Cache County. The fee schedule lists a flat 'Deck/Patio/Covered Porch' fee.

Verified 2026-07-17 · Source

When you need this permit

  • New deck construction attached to or detached from the house
  • Decks higher than 30 inches above grade
  • Structural modifications to existing decks
  • Covered porches and patios

Required documents

Check off what you have — your progress is saved on this device.

Not ready yet0 of 3 required documents checked.

This checker covers one permit. A full project usually triggers several — our paid checklist will assemble all of them, from $29

Fee schedule

Deck/Patio/Covered Porch PermitCache County Building Division Fee Schedule, Ord. 2024-18 (adopted 11/6/2024); fee schedule PDF re-fetched and re-confirmed live 2026-07-17 (unchanged)
$300
Plan Review FeeCache County Building Division Fee Schedule, Ord. 2024-18
$50
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 Deck 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

    Footings

    Verify footing depth (30 inches below grade for frost protection in Cache Valley), diameter, and rebar before concrete pour

  2. 2

    Framing

    Posts, beams, joists, ledger connection, and hardware verified

  3. 3

    Final

    Decking, stairs, guards, and railings complete

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

Tips

  • Cache Valley frost depth is 30 inches — deck footings must extend below this depth.
  • Deck guards are required when the deck surface is 30 inches or more above grade per the adopted IRC.
  • Ledger boards must be positively attached with lag screws or through-bolts — nails are not allowed.
  • A zoning clearance from Planning & Zoning ((435) 755-1640) is required before applying for the building permit.

Frequently asked questions

Unincorporated Cache County requires a deck permit for: New deck construction attached to or detached from the house; Decks higher than 30 inches above grade; Structural modifications to existing decks; Covered porches and patios. If your project isn't listed, confirm with Cache County Building Division at (435) 755-1650 before starting work.

The deck/patio/covered porch permit fee is $300 plus $50 plan review and 1% state surcharge per the Cache County Building Division Fee Schedule (Ord. 2024-18, adopted 11/6/2024).

Plan review for a deck 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; Approved Zoning Clearance and Site Plan; Construction Drawings. See the required-documents checklist on this page for details on each.

Unincorporated Cache County requires 3 inspection(s) for a deck permit, in order: Footings, Framing, 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.