Mona amends accessory building rules; greenhouse application cleared to proceed to city council

The Mona Planning and Zoning Commission on July 2 approved changes to accessory building definitions in the Mona City Code (Ordinance 2025-12) and reviewed a homeowner’s greenhouse application that commissioners agreed to forward to the Mona City Council.

The code amendment clarifies accessory-building terminology in section 10-2-2 and adjusts setback language in the land use matrix (10-6-1). The update noted that accessory buildings must obtain a city permit when larger than 400 square feet and restated a 30‑foot measure from the front of a primary house; discussion at the meeting flagged ambiguity for corner lots and whether a five‑foot “drip line” offset applies. Commissioners instructed staff to reconcile language for corner-lot setbacks in future code work.

The commission also reviewed an application by resident Gail Harvey for an accessory greenhouse at 684 South 400 West. Harvey described the structure as approximately 29 feet 6 inches by 20 feet (roughly 590 square feet) with four‑foot walls and a partially below‑grade design. Because the footprint exceeds 400 square feet, it requires a permit and inspection. The commission moved to accept the greenhouse application and send it to the City Council for final approval; staff said the council would take it up next Tuesday and, if approved, Harvey will apply for a building permit and pay applicable fees.

Staff and commissioners discussed utility hookups: the commission advised separate lines for city potable water and secondary irrigation water to prevent backflow or cross-contamination, and recommended that Lane, the city engineer, inspect electrical and water connections. Staff (Laurie) said major structural changes after approval should be reported so the city can re-review if necessary. The transcript records motions and seconds for both the accessory ordinance and the greenhouse referral, but does not include a complete roll-call tally in the record.