Box Elder County code sets strict standards for flag lots, including stem width, hydrants and occupancy hold

The Box Elder County Land Use and Development Code requires special approval for so-called "flag lots," including minimum and maximum dimensions and infrastructure conditions. The code states: "All flag lots shall be approved as a special provision to the Land Use and Development Code by the Planning Commission," and then lists objective criteria for approval.

Among the specific technical requirements, the code prescribes that "the staff of the flag lot has a minimum width of thirty (30) feet" and a maximum stem length of "two hundred and fifty (250) feet." The rules say the flag-lot area (exclusive of the stem) must meet all zoning requirements for the area or be at least one-half acre, whichever is greater. Applicants must submit a plan showing fire-hydrant locations and receive approval from the Fire Marshall; the code also specifies that all improvements, including hard surfacing and hydrants, be performed at the applicant's expense and that "no certificate of occupancy shall be issued for the proposed flag lot until the improvements are fully installed."

The code limits flag-lot approvals to subdivisions containing four lots or fewer, restricts the stem to ingress and egress (and utilities), and requires the stem to be improved to a private-road standard consistent with county public-works standards. The code permits the Planning Commission to impose additional conditions on approvals and authorizes, in some instances, administrative conditional-use review by the Zoning Administrator with the same objective tests.

No formal action, vote or change to the text is recorded in the provided excerpt; the transcript is the Code language itself and does not document an adoption event or amendment process.