5-6-030 General Regulations
Unofficial copy. It may be out of date. Not legal or zoning advice. Zoning rules change, and only the city or county can say for sure what is allowed on a property. Confirm with the city or county planning department before you buy, sign or build.
The official Box Elder County code is at https://www.boxeldercountyut.gov/241/Land-Use-Management-Development-Code.
Text pulled 2026-10-19 from this source.
Chapter 5-4 (Flood Damage Prevention) is a scanned image on the county's site and is not included.
Tables (like use tables) may not copy cleanly, so check any table against the official code.
Confirm anything here with Box Elder County planning before you rely on it.
A. Except as provided in this Code, no ADU or IADU shall be erected, raised, moved, placed, reconstructed, extended, enlarged, or altered, except in conformity with the regulations herein specified for the use district in which it is located.
B. All ADUs and IADUs hereafter erected in Box Elder County shall comply with the current standards of the International Residential Code, and all other codes and ordinances adopted by Box Elder County.
Reg. of General Applicability: Accessory Dwelling Units 5-6- 1
C. All ADUs and IADUs must be reviewed and approved for septic feasibility by the Bear River Health Department.
D. All ADUs and IADUs shall be maintained in good condition. E. No person may engage in the business of erecting, altering, relocating, or constructing ADUs or
IADUs without a valid Utah contractor’s license, and valid County business license.