How deck permits work in Herriman
The permit itself is typically called the Residential Building Permit — Deck.
Most deck projects in Herriman pull multiple trade permits — typically building and electrical. Each is reviewed and inspected separately, which means more checkpoints, more fees, and more coordination between the trades on the job.
Why deck permits look the way they do in Herriman
Herriman sits in an Earthquake-Prone zone on the Wasatch Front requiring SDC-D seismic design on most new residential structures. Expansive bentonite clay soils in many subdivisions require engineered foundations — grading and soils reports are routinely required. Rapid subdivision growth means many lots are still platted as new developments, requiring project-specific dry-utility coordination with Rocky Mountain Power and Dominion. Wildland-Urban Interface (WUI) fire codes apply across much of the city's southern and western foothills.
For deck work specifically, the structural specifications are shaped by local conditions: the city sits in IECC climate zone CZ5B, frost depth is 30 inches, design temperatures range from 8°F (heating) to 95°F (cooling). Post and footing depths typically need to extend at least 30 inches to clear the frost line.
Natural hazard overlays in this jurisdiction include earthquake seismic design category D, expansive soil, radon, wildfire, and FEMA flood zones. If your address falls within any of these overlay zones, the deck permit application picks up an extra review step that can add days to the timeline and specific design requirements to the plans.
HOA prevalence in Herriman is high. For deck projects this matters because HOA architectural review committee approval is a separate process from the city building permit, and the two have completely different rules. The HOA reviews materials, colors, and aesthetics; the city reviews structural, electrical, and code compliance. You generally need both, and the HOA approval typically takes 2-4 weeks regardless of how fast the city is.
What a deck permit costs in Herriman
Permit fees for deck work in Herriman typically run $150 to $600. Valuation-based; typically project value × 1.5–2% with a minimum flat fee; plan review fee assessed separately at roughly 65% of building permit fee
Utah imposes a state construction services fee surcharge; Herriman may also assess a technology/records fee; total out-of-pocket fees often run 20–30% higher than the base permit fee alone.
The fee schedule isn't usually what makes deck permits expensive in Herriman. The real cost variables are situational. Engineered footing design and geotechnical review driven by expansive bentonite clay soils — often $800–$2,500 in engineering fees alone before construction. SDC-D seismic lateral hardware (hold-downs, moment connections at ledger) adds material and labor cost not seen in lower seismic zones. WUI fire-rated composite decking products (required in southern/western Herriman hillside areas) cost 30–50% more than standard composite. HOA architectural review process adds 4–8 weeks and sometimes mandates premium material upgrades (powder-coated aluminum balusters, specific decking brands) above code minimums.
How long deck permit review takes in Herriman
10-15 business days for standard review; over-the-counter review possible for very simple detached ground-level decks under 200 sf. For very simple scopes, an over-the-counter same-day approval is sometimes possible at counter-staff discretion. Anything with structural elements, plan review, or trade subcodes goes into the standard review queue.
The Herriman review timer doesn't run until intake confirms the package is complete. Anything missing — a survey, a contractor license number, an HIC registration — sends the package back without a review queue position.
The best time of year to file a deck permit in Herriman
Herriman's CZ5B climate and 30-inch frost depth make May through October the practical window for footing excavation and concrete work; summer concrete pours above 95°F design temperature require hot-weather admixtures and curing blankets, and contractor availability tightens sharply in June–August when the entire Wasatch Front construction season peaks simultaneously.
Documents you submit with the application
For a deck permit application to be accepted by Herriman intake, the submission needs the documents below. An incomplete package is returned without going into the review queue at all.
- Site plan showing deck location, setbacks from property lines, and house footprint
- Structural/framing plan with footing sizes, joist spans, beam sizes, post spacing, ledger attachment detail, and guardrail design
- Soils/geotechnical report or engineered footing specification if expansive clay soils are present (common in Herriman subdivisions)
- Seismic lateral-load calculation or engineer-stamped plans for attached decks in SDC-D
- HOA approval letter (not required by city but often requested at submittal to avoid stop-work orders)
Who is allowed to pull the permit
Homeowner on owner-occupied single-family with signed owner-builder acknowledgment form, or licensed General Contractor (B100)
Utah DOPL General Contractor B100 required for contractor-pulled permits; electrical subcontractor must hold Utah S210 (master) or S220 (journeyman) license if any deck lighting or outlets are included
What inspectors actually check on a deck job
A deck project in Herriman typically goes through 4 inspections. Each inspector has a specific checklist, and the difference between a same-day pass and a re-inspection (which costs typically $75–$250 in re-inspection fees plus another scheduling delay) usually comes down to one or two items on these lists.
| Inspection stage | What the inspector checks |
|---|---|
| Footing inspection | Pier diameter and depth (minimum 30" below grade for frost, but often deeper per engineered soils spec), bearing capacity in clay soils, placement relative to property lines and house foundation |
| Framing / ledger rough-in | Ledger fastener pattern (bolts or LedgerLOK structural screws per IRC R507.9), ledger flashing installed and lapped correctly over house WRB, beam-to-post connections, joist hanger gauge and nailing, lateral load hardware (hold-downs or knee-brace connections for SDC-D) |
| Rough electrical (if applicable) | GFCI-protected outlets, exterior-rated boxes and covers, conduit routing and fill, proper weatherproof in-use covers |
| Final inspection | Guardrail height (36" min), baluster spacing (4" sphere), stair rise/run compliance, handrail graspability, decking attachment, all electrical cover plates and GFCI devices functional, drainage away from house, address visibility |
When something fails, the inspector documents specific code references on the correction sheet. You correct the items, request a re-inspection, and pay any associated fee. The deck job stays in suspended state until the re-inspection passes — which is why catching things on the first walkthrough saves both time and money.
The most common reasons applications get rejected here
The Herriman permit office sees the same patterns over and over. These specific issues account for most first-pass rejections, and most of them are entirely preventable with a few minutes of double-checking before submission.
- Ledger attached with nails or insufficient fastener pattern — IRC R507.9 requires staggered bolts or approved structural screws; SDC-D lateral shear demands make this the #1 fail
- Footings not deep enough or undersized for expansive clay bearing conditions — inspector will reject footings poured before soils inspection or without engineered spec
- Missing or improper ledger flashing allowing water intrusion into rim joist — extremely common on Herriman's OSB-sheathed newer homes where improper cuts expose engineered lumber to moisture
- Guardrail posts surface-mounted with decorative post-cap hardware instead of through-bolted structural base rated for lateral load
- Deck lighting or outlet circuits missing GFCI protection or using interior-rated boxes
Mistakes homeowners commonly make on deck permits in Herriman
The patterns below come up over and over with first-time deck applicants in Herriman. Most of them are rooted in assumptions that work fine in other jurisdictions but don't here.
- Assuming standard 30-inch frost-depth footings are sufficient — Herriman's expansive clay soils frequently require deeper, wider, or engineered piers that a big-box contractor estimating from IRC tables alone will underbid
- Getting HOA approval after pulling the city permit rather than simultaneously — Herriman HOAs routinely require different railing styles or decking colors than what was drawn on the city-approved plans, forcing a plan revision and re-review fee
- Using surface-mount post bases because 'they're allowed in other states' — while IRC R507 does permit them under certain conditions, Herriman's SDC-D seismic requirements mean surface-mount bases must be rated for the calculated lateral load, and many standard catalog bases are not
- Skipping the 811 Blue Stakes call before drilling pier holes — Herriman's newer subdivisions have dense underground irrigation, gas, and fiber networks that are not always accurately shown on as-built drawings
The specific codes that govern this work
If the inspector cites a code section, this is the list they'll most likely be referencing. These are the live code references that Herriman permits and inspections are evaluated against.
IRC R507 (deck construction — footings, ledger attachment, joist spans, guardrails, lateral loads)IRC R311.7 (stair geometry — rise/run, handrail requirements)IRC R312.1 (guardrail height 36" min, 4" baluster sphere rule)IRC R507.9 (ledger fastening — structural screws or bolts, flashing mandatory)ASCE 7-16 seismic design category D lateral load requirements (referenced by 2021 IBC/IRC for SDC-D jurisdictions)NEC 210.8(A) (GFCI required for all 125V 15/20A receptacles on decks)
Utah has adopted the 2021 IRC with amendments; Herriman enforces SDC-D seismic provisions which effectively require engineer review of ledger-to-rim-joist connections and lateral hold-down hardware beyond standard IRC R507 prescriptive minimums. Wildland-Urban Interface (WUI) areas in Herriman's southern/western foothills may require ignition-resistant decking materials per local fire code.
Three real deck scenarios in Herriman
What the rules look like in practice depends a lot on the specific situation. These three scenarios cover the common shapes of deck projects in Herriman and what the permit path looks like for each.
Utility coordination in Herriman
No utility coordination is required for a standard deck unless the project requires trenching near underground gas or irrigation lines — call 811 (Blue Stakes of Utah) at least 2 business days before any digging for pier holes; Rocky Mountain Power coordination only needed if adding a dedicated electrical circuit from the main panel.
Rebates and incentives for deck work in Herriman
Some deck projects qualify for utility rebates, state energy program incentives, or federal tax credits. The most relevant programs in this jurisdiction are listed below — eligibility depends on equipment efficiency ratings, contractor certification, and post-installation documentation, so verify specifics before purchasing.
No rebate programs apply directly to deck construction — N/A. Decks do not qualify for Rocky Mountain Power wattsmart or Dominion Energy rebate programs; if adding outdoor EV receptacle in conjunction, Rocky Mountain Power may have EV-related incentives at rockymountainpower.net. N/A
Common questions about deck permits in Herriman
Do I need a building permit for a deck in Herriman?
Yes. Any attached or detached deck over 30 inches above grade or over 200 square feet requires a building permit in Herriman. Attached decks of any size that connect structurally to the house also require a permit due to ledger-connection requirements.
How much does a deck permit cost in Herriman?
Permit fees in Herriman for deck work typically run $150 to $600. The exact fee depends on the project valuation and which trade subcodes apply. Plan review and re-inspection fees are sometimes assessed separately.
How long does Herriman take to review a deck permit?
10-15 business days for standard review; over-the-counter review possible for very simple detached ground-level decks under 200 sf.
Can a homeowner pull the permit themselves in Herriman?
Yes — homeowners can pull their own permits. Utah allows owner-builders to pull their own permits for owner-occupied single-family residences, with signed owner-builder acknowledgment forms typically required. Subcontractors (electrical, plumbing, HVAC) must still be licensed.
Herriman permit office
Herriman City Building Department
Phone: (801) 446-5323 · Online: https://herriman.utah.gov
Related guides for Herriman and nearby
For more research on permits in this region, the following guides cover related projects in Herriman or the same project in other Utah cities.