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Lehi, UT Building Safety: Plumbing Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Adopted code
2018 International Plumbing Code
AHJ
Assistant Building Official
Fee formula
sq ft x ICC cost x 0.01852
Modification decision deadline
30 days
Default penalty
Class B misdemeanor (§1-4-1)

Summary

Lehi enforces the 2018 International Plumbing Code as its plumbing standard under City Code section 10-2-1(F), with the Assistant Building Official as the authority having jurisdiction. Plumbing permit fees follow the same citywide formula as other building permits: square footage times the ICC's average construction cost per square foot, multiplied by 0.01852.

F. Plumbing Code: The 2018 International Plumbing Code, which is promulgated by the International Code Council, is approved and adopted as the code for the purpose of prescribing regulations governing plumbing in the City.

Full Breakdown

City Code section 10-2-1(F) approves and adopts the 2018 International Plumbing Code, published by the International Code Council, as the code governing plumbing work in Lehi. Under section 10-2-3(B)(6), the Assistant Building Official is the authority having jurisdiction (AHJ) for the Plumbing Code specifically, separate from the Fire Marshal, who administers the Fire and Wildland-Urban Interface Codes, and the Power Department Operations Manager, who administers the National Electric Safety Code. 01852 to reach the fee. If a plumbing installation cannot practically meet a specific code section, section 10-2-3(A) lets the owner apply in writing to the AHJ for a modification, stating the reason strict compliance is impractical, the requested modification, and why it still satisfies the code's health and safety intent; the AHJ must render a written decision within thirty days, or notify the owner if more time is needed.

Because Title 10, Chapter 2 carries no chapter-specific penalty clause, a plumbing violation falls back on the citywide general penalty at section 1-4-1: the city council may impose a criminal fine up to the maximum class B misdemeanor amount under Utah Code section 76-3-301, up to six months imprisonment, or both.

Violations & Fines

Working without a permit or against the adopted Plumbing Code is punished under the citywide general penalty, City Code section 1-4-1: a criminal fine capped at the maximum class B misdemeanor amount set by Utah Code section 76-3-301, up to six months in jail, or both. The Assistant Building Official, as AHJ, can also require modifications or corrective work before signing off.

Frequently Asked Questions

What plumbing code does Lehi use?
Lehi has adopted the 2018 International Plumbing Code as its governing plumbing standard under City Code section 10-2-1(F), enforced by the Assistant Building Official.
How is a Lehi plumbing permit fee calculated?
Section 10-2-2 multiplies the ICC's average square-foot construction cost by the structure's total square footage, then multiplies that number by 0.01852 to set the permit fee, the same formula used for other building permits.
Who decides if a plumbing installation can deviate from the code?
The Assistant Building Official, as authority having jurisdiction under section 10-2-3, reviews a written request explaining why strict compliance is impractical and must issue a decision within thirty days.
What is the penalty for unpermitted plumbing work in Lehi?
Because Chapter 2 has no penalty of its own, City Code section 1-4-1 applies: a fine up to the maximum class B misdemeanor amount under Utah Code 76-3-301, up to six months imprisonment, or both.

Sources & Official References

Other rules in Lehi

All Lehi rules

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