3-10-060 Special 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 It may be out of date.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. Base Density:The base density for the AHZ shall be 5 acres if the lots will be connected to a culinary tap from a water company and is located along a paved road. The base density for lots that are connected to a well or that are along a gravel road shall be 10 acres.
B. Residential Lots on Existing Roads:To increase flexibility for agricultural parcels while leaving at least a 30’ access to the interior of the parcel, a minimum 20,000 square foot lot for a single family dwelling or workforce housing, using the standards of the RR-20 zone, may be allowed pursuant to: 1. Development must follow Chapter 6-1, Subdivision Regulations, unless explicitly different in the AHZ. There shall be no remainder parcels (all land of the original parcel(s) shall be included); 2. Access point(s) must adhere to drawings shown on Exhibit A. i. All new roads shall be built to Box Elder County Public Works Standards. 3. Streets where allowed: i. State Routes with UDOT approval for access ii. Existing County B Roads iii. New roads will be allowed only if they fit the 1320 grid pattern system existing in the County
C. Buildable Area:The buildable area of land shall not include the following: 1. FEMA flood Zone A; 2. wetlands; 3. Slopes in excess of twenty percent (20%);
D. Maximum Developable Area:The maximum developable area is determined by dividing the buildable area of land by the base density. (ex. if you start with a 40 acre parcel - you would get 8 - ½ acre lots or 4 - 1 acre lots or 2 - 2 acre lots or 1 - 4 acre lot…)
E. Agricultural Lot:Agricultural lot, after meeting the base density maximum the remainder parcel shall be left in place and not be further subdivided for a minimum of twenty (20) years. 1. After 20 years, the Agricultural Lot’s eligibility to subdivide will reset and may be subdivided according to the regulations of this Chapter.