Utah ADU Laws

Complete 2026 guide to accessory dwelling unit regulations

○Local Control Only

📋Quick Facts

Owner Occupancy
May be required
Parking
Set locally
Approval Process
Varies locally

⚠️Key Requirements & Restrictions

  • •No statewide ADU law - entirely local control
  • •Salt Lake County reduced restrictions June 4, 2024
  • •Salt Lake City eliminated conditional use requirements for detached ADUs
  • •North Salt Lake updated ADU regulations April 1, 2025
  • •Owner-occupancy requirements vary by municipality

📖Detailed Analysis

No statewide ADU law - entirely local control. Salt Lake County adopted ordinance June 4, 2024 to reduce restrictions and facilitate greater ADU adoption. Salt Lake City eliminated conditional use requirements for detached ADUs in single-family zones (unanimously approved). North Salt Lake amended ADU regulations April 1, 2025. Owner-occupancy requirements vary by jurisdiction - Salt Lake City requires it for some ADUs. Utah represents traditional local control approach without state intervention, contrasting with neighboring states like California and Colorado that have statewide mandates.

🔗Official Resources

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⚠️ Disclaimer

The information provided on this website is for general informational purposes only and does not constitute legal, financial, or professional advice. ADU laws, regulations, and requirements vary by jurisdiction and change frequently. While we strive to keep this information accurate and up-to-date, we make no representations or warranties of any kind about the completeness, accuracy, reliability, or suitability of this information. Always consult with qualified local professionals, including attorneys, architects, and your local planning department, before making any decisions regarding ADU construction or investment. Use of this information is at your own risk.

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Last updated: February 2026