Accessory Structures in Lehi, UT (2026)
5 verified accessory structures rules for Lehi, Utah, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Lehi allows one accessory dwelling unit in an owner-occupied single-family detached home, but only after Planning Division permits and approvals are obtained. The lot must be at least 6,000 square feet, and Section 26.030(D) bars ADUs entirely from any parcel identified on the city's ADU Restricted Area Map.
Lehi Accessory Dwelling Unit Zoning Rules
Some RestrictionsLehi City Development Code § 26.030
One Accessory Dwelling Unit (ADU) may be allowed in an owner-occupied single-family detached home after obtaining all required permits and approvals. Any person constructing or causing the construction of an ADU shall first obtain a permit from the Planning Division... D. Zoning. ... ADUs shall only be allowed in singlefamily detached residential homes. ADUs shall not be allowed in any areas id...
ADU Impact Fees
Before a Lehi accessory dwelling unit can be built, the owner must clear a separate Building Division review beyond Planning Division approval, and Section 26.030(G) requires paying every applicable fee, including impact fees, before construction of the ADU begins.
Lehi ADU Building Permit and Impact Fees
Some RestrictionsLehi City Development Code § 26.030.G
G. Building Division Approval. In addition to the approval required from the Planning Division, all ADUs shall be required to obtain a building permit from the Building Division and shall conform to all applicable standards in the City's adopted building codes. The applicant shall obtain all necessary building permits and pay all applicable fees, including impact fees, prior to constructing the...
ADU Owner Occupancy
Lehi will not license an accessory dwelling unit unless the owner of the primary home actually lives there. Section 26.030(A) requires the owner to sign and record an affidavit against the property confirming owner occupancy, binding every future owner who wants to keep operating the ADU.
Lehi ADU Owner-Occupancy Rule
Some RestrictionsLehi City Development Code § 26.030.A
A. Owner Occupancy Required. The owner of the primary residence shall live in the dwelling in which the ADU was created. The owner shall sign an affidavit therein stating that the primary dwelling will be owner occupied. This affidavit shall be recorded against the property and is required for all owners of the property who operate an accessory dwelling unit.
ADU Rental Restrictions
Lehi requires an active ADU license for as long as an accessory dwelling unit is rented, and Section 26.030(H) forces a choice: a property may hold both an ADU permit and a Short-Term Rental permit, but only one of the two uses may be active at a time on the lot.
Lehi ADU Rental Restrictions
Some RestrictionsLehi City Development Code § 26.030.H
H. Both an Accessory Dwelling Unit and a ShortTerm Rental permit may be obtained; however, only one of these uses may be active at a time. Only one accessory dwelling unit shall be in service at any given time per single-family dwelling lot.
Shed & Carport Rules
Lehi bars accessory buildings and sheds from any required front yard and from utility easements, caps rear-yard coverage at 30 percent of the lot, and scales side and rear setbacks to the structure's height under Development Code Sections 26.050, 26.060 and 26.070.
Lehi Accessory Building Setback and Height Rules
Some RestrictionsLehi City Development Code § 26.050
A. Accessory buildings and structures shall not be located within any required utility easement(s). B. Accessory buildings and structures shall not be located closer than 12 feet to a dwelling on an adjacent lot or property. C. All required setbacks include any eave, overhang, or projection... E. ... All accessory buildings and structures are prohibited in any required front yard area.
Looking for Utah County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Lehi city rules.
Accessory Structures in Utah County →