Lehi's Building Safety: The Rules That Matter

Every city handles building safety a little differently. In Lehi, Utah, there are 5 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Plumbing Permits

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.

Key details: 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).

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.

Electrical Permits

Lehi has adopted the 2017 National Electrical Code as its electrical standard under City Code section 10-2-1(H), with the Assistant Building Official acting as the authority having jurisdiction. The city separately adopted the 2017 National Electric Safety Code, administered by the Power Department Operations Manager because Lehi runs its own municipal power utility.

Key details: Adopted code: 2017 National Electrical Code. AHJ (NEC): Assistant Building Official. AHJ (NESC): Power Dept Operations Manager. Utility note: Lehi runs its own electric utility. Default penalty: Class B misdemeanor (§1-4-1).

A violation of the adopted NEC or NESC falls back on the citywide general penalty, City Code section 1-4-1: a fine capped at the maximum class B misdemeanor amount under Utah Code section 76-3-301, up to six months imprisonment, or both. The Assistant Building Official, or for the electric safety code the Power Department Operations Manager, enforces compliance as AHJ.

Fire Sprinkler Requirements

City Code section 10-3-1 requires an automatic fire sprinkler system in new homes built under the International Residential Code when any one of six conditions is met, from a wildland-urban interface location to inadequate water flow or a steep fire-access road. It applies in addition to, not instead of, the separate WUI Code sprinkler mandate for the Dry Creek Corridor.

Key details: Trigger: Any 1 of 6 conditions in §10-3-1. Water flow: 500-1,000 gpm by home size. Access road: >10% grade over 500 ft triggers rule. Adopted: Ord. 06-08-10.4, June 8, 2010. Note: Separate from Dry Creek WUI mandate.

Section 10-3-1 carries no penalty clause of its own, so noncompliance is enforced through the building permit and inspection process under Chapter 2: the Assistant Building Official can withhold final inspection approval and occupancy until a required sprinkler system is installed, and unpermitted work otherwise falls under the citywide general penalty at section 1-4-1, up to the maximum class B misdemeanor fine under Utah Code 76-3-301.

This is not one of those rules that cities tend to ignore. Lehi actively enforces its fire sprinkler requirements requirements.

Building Permits

Lehi requires a valid building permit before any construction, removal, or alteration of a structure begins. The Development Code makes an approved final site plan or subdivision plat a prerequisite, and the Chief Building Official issues the permit itself.

Key details: Permit required: Before any construction, removal, or alteration. Issuing official: City's Chief Building Official. Prerequisite: Approved final site plan or subdivision plat. Building code: International Building Code as adopted. Pre-completion permits: Allowed only with posted financial assurance.

Building without the required permit is unpermitted construction under the Development Code and exposes the property to a stop-work order and code enforcement action by the Chief Building Official; occupying or using the structure before a certificate of occupancy issues under Section 01.080 is a separate violation, since no certificate may be granted until inspection confirms the permitted work is fully completed and all fees are paid.

Childcare Center Rules

A commercial daycare in a Lehi residential zone must look like an ordinary house and cannot exceed 16 children at a time. Development Code Section 12.200 also bars daycares from multifamily buildings, spaces them at least 400 feet apart, and requires State licensing on top of the city's own site and fencing standards.

Key details: Max children: 16 at one time. Spacing between daycares: 400 ft, lot line to lot line. Building appearance: Must resemble single-family home. Signage: None permitted. Fencing: 6-ft sight-obscuring, self-locking gates.

Operating without the required fencing, self-closing gates, or exterior signage advertising the business, exceeding the 400-foot spacing or the 16-child cap, or running a daycare inside a multi-family building is a Development Code violation. Section 34.010.D makes noncompliance a class C misdemeanor enforced by the Zoning Administrator, with each ten-day period of continued violation treated as a separate offense.

The Bottom Line

Lehi's building safety rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Lehi is broadly strict or permissive.

These rules come from Lehi's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.