Can short-term rentals claim nonconforming use status in agricultural zones? South Weber City v. Cobblestone Resort LLC Explained

In South Weber City v. Cobblestone Resort LLC, the Utah Court of Appeals addressed whether short-term rental operations can qualify as permitted nonconforming uses in agricultural zones and whether municipalities can be estopped from enforcing business license requirements through prior non-enforcement.

Background and Facts

Cobblestone Resort LLC purchased property in South Weber City’s agricultural zone and began operating it as a short-term rental (STR) through Airbnb. In May 2019, South Weber adopted an ordinance requiring conditional use permits and business licenses for STRs. After Cobblestone obtained a conditional use permit, it received multiple violations, leading to permit revocation. The situation escalated when police responded to a firearms incident at the property, prompting South Weber to seek injunctive relief under Utah Code section 10-9a-802.

Key Legal Issues

The case presented two primary issues: (1) whether Cobblestone’s STR operation constituted a legal nonconforming use that predated the ordinance requirements, and (2) whether South Weber should be equitably estopped from enforcing the business license requirement due to previous non-enforcement or website statements about rental properties.

Court’s Analysis and Holding

The Court of Appeals affirmed the district court’s injunction. Regarding nonconforming use, the court held that STRs do not qualify as permitted “one-family dwellings” in agricultural zones because they fall within excluded categories like “lodging houses.” The court applied statutory interpretation principles, consulting dictionary definitions to determine that STRs providing temporary accommodations constitute “lodging” under the ordinance’s exclusions. On equitable estoppel, the court found that general non-enforcement and website statements about “rental units” (defined as month-or-longer leases) were insufficient to estop the municipality from enforcing STR regulations.

Practice Implications

This decision reinforces that municipalities retain broad authority to regulate STRs even when property owners claim pre-existing rights. The ruling demonstrates that courts will examine the complete definitional framework of ordinances rather than accepting selective interpretations. For practitioners, the case highlights the importance of addressing all statutory elements when arguing nonconforming use status and the high bar for proving equitable estoppel against governmental entities, which requires “very clear, well-substantiated representations” beyond mere non-enforcement.