Lehi ADU playbook

Lehi’s growth means many newer subdivisions and HOAs. Evaluate the property, then read CC&Rs before you sketch a backyard unit.

Planning desk

Lehi City Planning Division

Try a sample property: 200 N 100 E, Lehi

Local themes

Lehi is a fast-growing specified municipality. Statewide detached ADU mandates for qualifying properties begin October 1, 2026.
Newer subdivisions and HOAs are common — check covenants early, especially for detached units.
Confirm lot coverage, setbacks, and utility capacity with Planning before hiring a designer.

Setbacks: Master-planned communities may stack HOA setbacks on top of city setbacks — check both.

Parking: Driveway and garage layouts in new plats can be tight; measure before assuming a second stall fits.

Ordinance: Lehi is a specified municipality; confirm how local code treats properties under 11,000 sq ft.

Common rejection reasons

Permit tips