Ryla Vineyards

The Ryla Vineyards project involves earthmoving activities and the installation and maintenance of erosion control measures to convert approximately 5.0 gross acres (4.3 net acres) to vineyard on a 13.6 acre parcel located at 720 Sunnyside Road in St. Helena, Napa County, California. The conversion occurs on slopes ranging from 7% to 16%, with an average slope of 10%, and includes approximately one acre of existing vineyard planted on slopes over 5% without a permit. The project is situated within the Canon Creek drainage of the Napa River Watershed in the Deer Park community. Key deliverables include the conversion of 2.3 acres of pre-fire coast live oak woodland to vineyard and the permanent preservation of approximately five contiguous acres of the same habitat. The project is exempt from CEQA and must comply with Napa County WAA Guidelines, Governor Executive Orders N-7-22 and N-3-23, the Napa Valley Subbasin Groundwater Sustainability Plan, the Public Trust Doctrine, and CDFW guidance for special-status species. Environmental commitments include reconstruction surveys and the implementation of buffers to protect special-status species. The project was approved by the Napa County PBES Director on August 19, 2026.