Fees
Estimated city fees
Baseline for a simple permitted deck: $175–$450 estimated city fees for a permitted residential deck in Salt Lake City, UT
| Fee | Amount | Notes |
|---|---|---|
| Residential building permit fee | $175–$450 (estimated, based on declared valuation) | Salt Lake City Building Services uses a valuation-based fee schedule for residential permits. A typical residential deck valued at $5,000–$25,000 commonly falls in this range. Verify current fees through the SLC permit portal before submitting. |
| Plan review fee | Typically included or ~65% of permit fee | Residential plan review for standard single-family work is usually bundled with the permit fee. Projects requiring structural engineering wet-stamp or special review may incur a separate charge. |
| Inspections | Included; reinspection fee if not ready | Standard residential deck inspections (footing, framing, final) are covered under the permit. A reinspection fee applies if the site is not ready when the inspector arrives. |
Documents
Required documents
- Completed residential building permit application submitted through the Salt Lake City online permit portal.
- Scaled site plan showing property lines, setbacks, easements, existing structures, and the proposed deck footprint with dimensions.
- Construction drawings including plan view, elevations, framing layout, footing locations and depths, post and beam sizing, joist spacing, and stair or guardrail details where required.
- Structural details demonstrating compliance with the Utah Residential Code (2021 IRC, Utah amendments), including snow load calculations per ASCE 7-22 ground snow load for the SLC valley (approx. 43 psf) — required for any deck designed to accumulate snow.
- Ledger attachment and flashing specifications for any deck attached to the dwelling, per 2021 IRC Section R507.
- Frost-depth footing design showing minimum 30-inch depth below finished grade to meet the SLC frost line requirement.
- Contractor license documentation or owner-builder authorization depending on who is applying for the permit.
- Any supplemental approvals required by SLC historic preservation, floodplain management, or hillside overlay regulations for the parcel.
Timeline
Typical timing
- Plan review
- 7–15 business days for a standard residential deck
- Total cycle
- 3–6 weeks from submission to final inspection
Spring and summer volumes can extend review times. Snow-load calculations or special overlay requirements may add additional review cycles.
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Process
How the permit process works
- Determine permit requirement and snow load design category Confirm whether the deck is attached, exceeds 200 sq ft, or is higher than 30 inches above grade. If any condition applies, a permit is required. Simultaneously note the ground snow load for your parcel (typically 43 psf in the SLC valley) — this will drive structural decisions on framing and footing sizing.
- Check SLC zoning setbacks and overlay requirements Verify your parcel's zoning district setbacks for accessory structures, and confirm whether the property falls within a floodplain, hillside, or historic overlay zone. Setbacks apply even to code-exempt freestanding decks.
- Prepare Utah-code-compliant construction documents Prepare a site plan and structural drawings consistent with the 2021 Utah Residential Code. Include footing depths (30-inch minimum frost depth), post, beam, and joist sizing, ledger attachment for attached decks, and snow load-compliant framing members. SLC reviewers will check that structural design accounts for local snow loading.
- Submit through the SLC permit portal Create an account or log in at Salt Lake City's online permitting system, select the appropriate residential building permit type, upload the application and drawings, and pay the application fee. In-person service is available at SLC Building Services at 451 South State Street.
- Respond to plan review comments Building Services reviewers check submittal against the 2021 Utah Residential Code and SLC zoning ordinances. Respond to any correction requests by revising and resubmitting affected drawings.
- Receive permit approval and pay remaining fees After approval, pay outstanding fees, print the permit, and keep the permit and approved drawings accessible at the job site throughout construction.
- Schedule footing, framing, and final inspections Request inspections through the permit portal as construction progresses. A standard residential deck requires a footing inspection before pouring concrete, a framing inspection before covering structural members, and a final inspection on completion. The footing inspection is especially important in SLC to verify frost-depth compliance.
Code basis
What Salt Lake City reviews against
2021 Utah Residential Code (Utah adoption of the 2021 International Residential Code with Utah state amendments), administered locally through Salt Lake City Building Services with applicable SLC zoning and development standards.
If you skip the permit
What can go wrong
- Salt Lake City Building Services can issue a stop-work order and halt unpermitted construction immediately.
- You may be required to expose completed structural work — footings, framing, ledger connections — so an inspector can verify code compliance at your expense.
- After-the-fact permit fees are typically higher and the process more disruptive than applying upfront.
- Unpermitted decks can create insurance and resale problems when a buyer, lender, or inspector asks for permit records.
- If the deck violates setbacks, easements, or snow-load design requirements, you may be required to modify or remove the structure.
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FAQ
Common Salt Lake City deck permit questions
Do I need a permit to build a deck in Salt Lake City, UT?
Usually yes. Any deck attached to the house requires a permit, and any freestanding deck over 30 inches above grade or larger than 200 square feet also requires one. A small freestanding deck at or below 30 inches and 200 square feet or less may be exempt from the permit requirement, but SLC zoning setbacks still apply.
Why does snow load matter for a Salt Lake City deck permit?
SLC's valley ground snow load is approximately 43 psf (ASCE 7-22), which is significant. Deck framing members, posts, footings, and ledger attachments must be sized to handle this load. Building Services reviewers will check that structural drawings address snow loading, so including snow-load calculations in your submittal avoids correction cycles.
How deep do footings need to be in Salt Lake City?
SLC's frost depth is approximately 30 inches. Deck footing bottoms must bear at or below this depth to prevent frost-heave damage. Your structural drawings should show footing depth explicitly, and the footing inspection occurs before concrete is poured.
What building code does Salt Lake City use for decks?
Salt Lake City administers residential work under the 2021 Utah Residential Code, which adopts the 2021 IRC with Utah state amendments. Deck design follows IRC Section R507 (Exterior Decks) and the applicable structural provisions, with SLC-specific snow-load and frost-depth requirements.
How much does a Salt Lake City deck permit cost?
For a typical residential deck, expect roughly $175–$450 in permit and review fees depending on the declared project valuation. Verify current fees with SLC Building Services before applying.
Where do I apply for a deck permit in Salt Lake City?
Submit your application through the Salt Lake City online permit portal at slc.gov/building-services. In-person service is available at SLC Building Services, 451 South State Street, Salt Lake City, UT.
Does Rocky Mountain Power net metering affect deck project economics?
Indirectly — if you are planning both a deck and solar panels, note that Salt Lake City homeowners on Rocky Mountain Power who enrolled after 2017 receive export credits at the avoided-cost rate rather than full retail under Utah's modified net metering framework. On-site solar still offsets real utility purchases and SLC's excellent sun resource makes solar viable, but system sizing should focus on matching household usage. See the SLC solar page for details.
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Disclaimer: This page is informational, not legal advice. Permit rules, fees, and processes change. Verify your project with Salt Lake City permitting staff before building.