🏜️ West Desert growth corridor

Metal building permits in Tooele County

Tooele, Grantsville, Stansbury Park and Erda, one of Utah's fastest-growing areas west of the Oquirrh Mountains. Standard IRC permit rules apply, with Tooele City adding its own lot-coverage cap for accessory structures.

Code criteria (Tooele County)	Value	What it means for your build
Building-permit threshold	200 sq ft (IRC default)	Tooele City also caps total accessory-structure coverage at 8% of the lot.
Ground snow load	35 psf (Tooele, ~5,029 ft)	Heavier than Salt Lake or Davis County; lighter than Cache Valley.
Design wind speed	90 mph	Per IBC/ASCE 7 for the Tooele Valley.
Seismic design category	Confirm per site	Within Utah's Intermountain Seismic Belt, near the Oquirrh fault system. Engineered anchorage required.
Frost / footing depth	30″ (more at elevation)	Foundation must bear below frost line.
Adopted codes	2021 I-codes · 2020 NEC	Statewide since July 1, 2023.

Figures shown are representative Tooele values. Verify permit and lot-coverage specifics with your city building department.

Do you need a permit?

Tooele County cities generally follow the Utah default: a detached accessory building over 200 sq ft needs a building permit, and adding electrical or plumbing removes the exemption at any size. Tooele City layers on an additional rule. Total accessory-structure coverage across your lot is capped at 8%, separate from the permit-size question. A metal garage or shop with a foundation and electrical always needs a permit.

A growth corridor with real building demand

Tooele County is expanding fast west of the Salt Lake valley, with larger residential lots common in Grantsville, Stansbury Park and Erda. Good territory for detached garages, shops and hobby buildings. We engineer every building to your site's exact snow, wind and seismic values, not a county-average guess.

How an outbuilding gets approved, step by step

Confirm your city's threshold, lot-coverage cap, zoning & setbacks.
Engineer the building with PE-stamped drawings (we handle it).
Submit the building-permit application with a site plan.
Pour the foundation to engineered depth & anchorage.
Install & inspect. Framing and final, handled by your contractor.

Cities we serve in Tooele County

Tooele County permitting FAQ

What size shed needs a permit in Tooele County?

Over 200 sq ft requires a building permit. Tooele City also caps total accessory coverage at 8% of your lot, regardless of individual building size.

What snow load applies to my property?

About 35 psf at Tooele's elevation (~5,029 ft), heavier than Salt Lake County and lighter than Cache Valley. We engineer to your exact address.

Do you provide the engineered drawings for the permit?

Yes. Every building includes PE-stamped engineering prepared for your loads and jurisdiction.