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Churchill County proposes new ADU rules and mandatory design‑standards document
Summary
County staff proposed tighter accessory‑dwelling rules — one ADU per parcel, a 1,000‑sq‑ft cap, director determination for ADU status and limits on separate rental — and said technical engineering details will move from code into a mandatory design‑standards document for developers.
At a Jan. 27 workshop, Brandy Hines of Churchill County Public Works outlined proposed changes to accessory dwelling unit (ADU) language intended to resolve a longstanding difference between planning and building‑code definitions.
Hines said the planning code previously defined an ADU as a structure on the same parcel as the primary dwelling that may be attached or detached and "Typical uses include housing for guests, extended family housing, and caretakers quarters." Staff proposes adding clarity that an ADU shall not exceed 1,000 square feet of total habitable area and that only one ADU is permitted per parcel. Hines explained the discrepancy with building codes and assessor practice: building codes and statutes sometimes consider a dwelling dependent on a permanent means of cooking (a stove), while planning treats a living unit without a stove as an ADU. "If the planning department used the same definition as building codes... a structure without a permanent means of cooking will not be considered an ADU," Hines said, adding that the county is seeking continuity now that building and planning are consolidated in one department.
Proposed administrative controls include requiring a conditional zoning permit (previously referenced as an administrative special‑use permit), submission of a site plan, and a final determination by the director of the department. Staff also proposed restricting rental: ADUs may be rented only if the property owner lives in the main residence; if the owner does not inhabit the parcel, the accessory unit cannot be separately rented and must be used for nonpaying guests.
Hines told commissioners the county will not require a water‑right dedication or impact fees for an ADU, but any septic or utility capacity issues must be evaluated and upgraded if necessary. She said building officials will need to verify fixture units and septic sizing to ensure the system can handle the additional unit. "We'd want that separation, so we confirm that," Hines said, citing NRS and interdepartmental review.
On engineering standards, Hines said staff will remove 13 details currently in code and publish an expanded set (112 standard details) in a Churchill County design‑standards document covering improvement plans, traffic impact studies, streets, potable water, sanitary sewer, storm drainage, inspection and testing requirements. The standards will be mandatory technical requirements, she said.
Staff will do additional research and may revise ADU language before bringing formal code amendments to the planning commission in March. No formal action was taken at the workshop.
