A Mediterranean-style estate perched above Lake Hennessey in St. Helena is on the market, with a Sotheby’s listing asking $18.5 million for roughly 40 acres of landscaped grounds. The storybook compound blends formal interiors featuring Venetian plaster, walnut hardwood and French limestone with serious entertainer amenities outside, including multiple pools, guesthouses, a full-size tennis court and a bocce court. Built in 2003 and recently remodeled, the property sits just minutes from the Silverado Trail and looks out over sweeping lake and valley views.
According to Sonoma Magazine, the main residence measures about 8,500 square feet and is configured as a four-bedroom, four-bath home, with a vanishing-edge pool that appears to blend right into Lake Hennessey. The coverage also highlights a 60-foot lap pool near the guesthouses and a collection of alfresco dining spots framed by vine-wrapped trellises.
What’s inside the main house
The Sotheby’s listing maintained by agent Ginger Martin describes a newly remodeled main house that leans into both entertaining and day-to-day living. There is a chef’s kitchen plus a separate catering kitchen, a temperature-controlled wine cellar, two offices and a gym, all finished with custom ironwork and high-end materials. The agent materials put the main house at roughly 8,500 square feet, with two detached guesthouses of about 1,000 and 1,200 square feet, bringing the compound to approximately 10,700 square feet overall.
Grounds, vineyard and nearby acreage
Outside, the estate’s grounds feature mature gardens, fountains, multiple outdoor dining areas and extensive infrastructure. The property brochure notes about one acre planted to Cabernet vines on Pritchard Hill, along with a prolific well and backup power serving the compound. An adjacent 60-acre, buildable parcel is offered separately for $3.5 million, or the two parcels can be purchased together for about $21.5 million, according to a Berkshire Hathaway HomeServices listing. For buyers looking for a private entertainer’s compound plus additional plantable acreage in Napa Valley, it is a notably rare setup.
Listing and how to inquire
The property is being marketed through Sotheby’s International Realty’s St. Helena brokerage. Interested buyers can contact listing agent Ginger Martin using the numbers on the agent site to request the full brochure, photo tour and a private showing. The agent materials include detailed floor plans, infrastructure specifications and a full photo gallery for prospective buyers ready to take a closer look.
