Keller Yountville Vineyard LLC., Vineyard Conversion

The Keller Yountville Vineyard LLC vineyard conversion project, identified by permit P25-00080-ECPA, involves the development of a new vineyard on a 152.6-acre parcel in Yountville, California. The project encompasses 16.7 gross acres, with 14 net planted acres, and requires the clearing of vegetation including Scrub Oak Chaparral, Chamise Chaparral, and other disturbed lands. The scope of work includes earthmoving and the installation and maintenance of agricultural infrastructure and erosion and runoff control measures. Napa County issued a Notice of Determination on September 18, 2026, certifying that a Mitigated Negative Declaration was prepared under CEQA, which concluded that the project would not have a significant environmental impact provided that specific mitigation measures are followed. This process included addressing comments from the California Department of Fish and Wildlife regarding the California Endangered Species Act and the potential impact on Clara Hunt’s milk-vetch. The project is managed by Principal Planner Donald A Barrella and owner James Keller.