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Commercial Building Permit in Unincorporated Summit County, Utah

Required for new commercial building construction in unincorporated Summit County, including the Snyderville Basin (Silver Creek, Pinebrook, Jeremy Ranch, Summit Park) and the East Side/3-Mile/Henefer-area unincorporated communities. Construction and structural plans must be drafted by an architect licensed in the state of Utah. All applications are submitted and reviewed through the EPROCESS360 online portal, per the County's 'New Commercial Checklist' (current as of 6/2026).

Verified 2026-07-23 · Source

When you need this permit

  • New commercial building construction on a permitted, properly zoned lot in unincorporated Summit County
  • Construction may not commence until a valid building permit is obtained from the County Building Official (Summit County Development Code § 10-3-20)
  • Architectural and Structural Plans must be combined into one PDF and drafted by an Architect licensed in the state of Utah — per the County's New Commercial Checklist (6/2026), unlike the residential owner-builder allowance Owner-builder
  • Site Plan showing scale, north arrow, property lines, topography, defensible space for fire (if required), proposed and existing buildings, driveway location, building setbacks, street name/location, easements, utility locations, retaining walls, and hard surface areas
  • COMcheck (lighting and mechanical) energy code compliance documentation
  • Geotechnical Report required prior to any boring/trenching/digging; a separate County engineering permit must be obtained before this work begins
  • Commercial Project Engineering Review Checklist compliance for site civil elements — roadway/parking design, utility design, grading design, drainage design (per Summit County Code § 9-3-11), and erosion control/SWPPP — reviewed by the Summit County Engineering Division
  • A separate right-of-way permit (via the County's online portal) is required for any work — closures, excavations, structures — within County rights-of-way
  • A Long-Term Stormwater Management Plan may be required if the project disturbs more than 1 acre; a Noxious Weed Plan is required if the project disturbs more than a quarter acre (10,890 sq ft) and imports soil and/or exports more than 10 cubic yards of soil

Required documents

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Fee schedule

Building Permit Fee (both commercial and residential)Re-chased 2026-07-23: Summit County Building Department Fee Schedule, Ordinance 834-P (amended May 2026, effective 6/2026), item 2: 'Building Permit Fees (both commercial and residential) — a. Fees are calculated at a rate of 0.0075 (3/4 of 1%) of the construction valuation. i. Minimum fee: $100.' Downloaded the ordinance PDF directly and rendered page 33 to an image (the source PDF is scanned/non-machine-readable) and read it visually. This directly resolves the previously-undocumented 'Permit Fee Multiplier' mentioned in the County's BVD document — there is no separate confidential multiplier; the rate is a flat 0.0075 applied to the ICC BVD-table valuation.
0.0075 (3/4 of 1%) of construction valuation; $100 minimum fee (covers the cost of one inspection)
Plan Review FeeSummit County Building Department Fee Schedule, Ordinance 834-P, item 3. Read directly from the rendered ordinance page image, 2026-07-23.
65% of the applicable building permit fee (may be waived if plan review is not necessary, per the Building Official)
Plan Review Deposit (new structures)Summit County Building Department Fee Schedule, Ordinance 834-P, item 12.a. Read directly from the ordinance PDF (page 34, rendered to an image), 2026-07-23.
$200 deposit, credited toward the building plan review fee once approved (may be modified by the Building Official if no plan review is required, or reduced for structures that will be assessed a plan review fee under $200)
Utah State SurchargeSummit County Building Department Fee Schedule, Ordinance 834-P, item 9, collected and remitted to the State of Utah per UCA 15A-1-209.
1% of all permits

Review timeline

Plan reviewUnincorporated Summit County’s published plan-review target
21–26 business days

How long did your Commercial Building Permit permit actually take in Unincorporated Summit County?

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

Inspection process

  1. 1

    Rough Grade (Engineering)

    Must be completed by Summit County Engineering prior to footing inspection

  2. 2

    Footing / Foundation

    Geotechnical report must be provided at time of footing inspection

  3. 3

    Certificate of Elevation/Survey Inspection

    Required prior to shear/framing inspection when indicated on the approved plan by planning/zoning. Performed by a planner in-office, not on-site.

  4. 4

    4-Way Inspection

    Windows, fireplaces, and furnaces must be installed before this inspection. Gas line and Power-to-Panel inspections are performed only after 4-way (gas lines must be under test pressure; minimum two 20-amp GFCI-protected circuits required for power-to-panel).

  5. 5

    Weather Barrier

    Windows must be installed and all exterior wall penetrations completed prior to this inspection

  6. 6

    Insulation (incl. Spray-Applied)

    Spray-applied (closed/open cell foam) insulation must be inspected before additional insulation covers it; allow 24 hours ventilation prior to inspection

  7. 7

    Fire District Inspection

    The local fire district should complete its inspection prior to the building department's final; commonly performed at 4-way and final. Scheduled directly with the applicable fire district, not through EPROCESS360.

  8. 8

    Final Building and Final Engineering

    Both required prior to Certificate of Occupancy for new construction

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

Tips

  • Unlike residential permits, commercial construction plans (architectural and structural) must be drafted by an architect licensed in the state of Utah — there is no owner-builder equivalent for commercial projects. Owner-builder
  • Re-chased 2026-07-23: the Building Permit Fee rate IS published — Ordinance 834-P item 2 sets a flat 0.0075 (3/4 of 1%) of construction valuation, $100 minimum, for both commercial and residential permits, applied to a valuation figure taken from the County's published ICC Building Valuation Data (BVD) table. A $200 Plan Review Deposit is due for new structures. Contact the Building Department at (435) 336-3124 for a project-specific total, since the exact final figure is only assessed inside EPROCESS360 once plan review completes.
  • Commercial projects also go through a separate Summit County Engineering Division review (Commercial Project Engineering Review Checklist) covering roadway/parking, utility, grading, drainage, and erosion-control design — budget extra lead time for civil plan coordination alongside the building permit review.
  • Projects disturbing more than 1 acre may require a Long-Term Stormwater Management Plan (contact the Stormwater Department); projects disturbing more than a quarter acre while importing soil or exporting more than 10 cubic yards require a Noxious Weed Plan.
  • A separate right-of-way permit, applied for through the County's online permit portal, is required for any work (closures, excavations, structures) within County rights-of-way — this is in addition to the building permit.
  • All submissions, reviews, and issuance are processed exclusively through the EPROCESS360 online portal (summit.co.ut.eprocess360.com) — the County does not accept paper plans or perform over-the-counter reviews.

Frequently asked questions

Yes. The County's New Commercial Checklist requires that architectural and structural plans be drafted by an architect licensed in the state of Utah, combined into a single PDF submission.

Summit County does not publish a fixed commercial building permit fee table. The fee is calculated per project using the ICC Building Valuation Data table combined with a County permit-fee multiplier inside the EPROCESS360 portal after plan review; the amount only becomes visible once the fees tab populates. Contact the Building Department at (435) 336-3124 for a project-specific estimate.

The County's New Commercial Checklist (current as of June 2026) states estimated review times are 21-26 business days. This is a County-published estimate, not a guarantee.

You'll need: Construction Plans (single PDF, Architectural + Structural); Site Plan (separate from Construction Plans); Compliance Statement; Structural Calculations; COMcheck; Fire Approval Letter; Water Commitment of Service Letter / Well Log; Geotechnical Report; Bid Contract; General & Subcontractor Information; Commercial Project Engineering Review Checklist materials. Depending on your project, Unincorporated Summit County may also ask for: HOA Approval Letter and Plan Stamp; Snyderville Basin Water Reclamation District Fee Receipt / Septic Permit; Recreation District Approval; Service Area 3 Approval. See the required-documents checklist on this page for details on each.

Unincorporated Summit County requires 8 inspection(s) for a commercial building permit, in order: Rough Grade (Engineering), Footing / Foundation, Certificate of Elevation/Survey Inspection, 4-Way Inspection, Weather Barrier, Insulation (incl. Spray-Applied), Fire District Inspection, Final Building and Final Engineering. Schedule each through Summit County Community Development Department, Building Division ((435) 336-3124).

Apply through Summit County Community Development Department, Building Division at 60 North Main Street, P.O. Box 128, Coalville, UT 84017. Phone: (435) 336-3124, email: buildingquestions@summitcountyutah.gov. Office hours: Monday - Friday, 8:00 AM - 5:00 PM. Official information: https://www.summitcountyutah.gov/262/Building.

Unincorporated Summit County, Utah has adopted: 2024 International Building Code (IBC), including Appendices C and J — current statewide-adopted edition per Utah Code § 15A-2-103(1)(a), in force since July 1, 2026 (superseded the 2021 IBC).; 2021 International Residential Code (IRC) — current statewide-adopted edition per Utah Code § 15A-2-103(1)(b), unchanged by the July 1, 2026 code cycle flip; Summit County's official 'Effective 7/1/2026 IRC Project Design Criteria' table (R301.2(1)) confirms structures governed by the IRC are designed to the 2021 IRC baseline per current adoption.; 2024 International Plumbing Code (IPC) — current statewide-adopted edition per Utah Code § 15A-2-103(1)(d), in force since July 1, 2026 (superseded the 2021 IPC).; 2024 International Mechanical Code (IMC) — current statewide-adopted edition per Utah Code § 15A-2-103(1)(e), in force since July 1, 2026 (superseded the 2021 IMC).; 2024 International Fuel Gas Code (IFGC) — current statewide-adopted edition per Utah Code § 15A-2-103(1)(f), in force since July 1, 2026 (superseded the 2021 IFGC).; 2024 International Energy Conservation Code (IECC) — current statewide-adopted edition per Utah Code § 15A-2-103(1)(h), in force since July 1, 2026 (superseded the 2021 IECC; one edition applies statewide, no separate residential/commercial split).; Residential provisions of the 2024 International Swimming Pool and Spa Code (ISPSC) — current statewide-adopted edition per Utah Code § 15A-2-103(1)(n), in force since July 1, 2026 (superseded the 2021 ISPSC); applicable to Summit County pool/hot tub permits (APSP-15/APSP-7 compliance documentation required).; 2023 National Electrical Code (NEC) — current statewide-adopted edition per Utah Code § 15A-2-103(1)(g), unchanged by the July 1, 2026 code cycle flip.; 2024 International Existing Building Code (IEBC) — current statewide-adopted edition per Utah Code § 15A-2-103(1)(i), in force since July 1, 2026; not separately itemized on Summit County's own published materials, added here as it applies statewide.; NOTE: The July 1, 2026 statewide code cycle flip (Utah Code § 15A-2-103, amended by Ch. 47, 2026 General Session) is now in effect — the 2024 editions of IBC, IPC, IMC, IFGC, IECC, IEBC, and (residential provisions of) ISPSC are the current statewide-adopted codes, while the IRC (2021) and NEC (2023) did not change in this cycle.. Local amendments apply — see the Unincorporated Summit County overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-23.

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

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