A sprawling 150-acre North Fork estate with vineyard rows, equestrian facilities and a roughly 10,000-square-foot main house has hit the market with an asking price near $20 million. The property comes with agricultural infrastructure and, according to the listing, room for scores of new homes, putting it in rare company as one of the last large, contiguous land offerings on the North Fork.
According to The Real Deal, Sotheby’s International Realty brokers Yorgos Tsibiridis and Sharon Stern are marketing more than 150 contiguous acres at 6025 Sound Avenue in Riverhead. The listing calls out existing vineyard plantings, equestrian barns, a professional riding track and 89 developable residential lots, and Tsibiridis is quoted describing the uninterrupted acreage as "extremely rare."
The land once formed part of the former Martha Clara Vineyard and Big E Farm, long associated with baked-goods heir Robert Entenmann. A Rivero González family group picked up the broader estate in 2018 for about $15 million, according to past listings. Previous MLS entries and property pages indicate the tract includes dozens of outbuildings and event-ready facilities, alongside the manor house and extensive tillable acreage, per Compass. The RGNY website notes that the operation continues to run a tasting room and wedding business on roughly 50 acres of the property.
Market context
The listing lands in the middle of a frenzied East End buying spree, where big land trades and climbing prices for individual lots have stoked local fights over development and preservation. The Real Deal notes a record 110-acre East Marion sale tied to Apollo CEO Marc Rowan and points to billionaire farmer-developer Stefan Soloviev’s accumulation of more than 1,000 acres as part of the same trend. Brokers and market reports cited by the outlet also show the North Fork’s median home sale price closing in on the $1 million mark, which helps explain why large contiguous tracts are now so hard to find.
What could happen next
For a buyer, the menu of options runs from keeping a working vineyard and event business intact to slicing the land into residential lots or pursuing a hospitality-focused project. Any substantial build-out would bring complex permitting and community review, and North Fork neighbors in recent years have pushed back on projects they see as creeping "South Fork-ification."
The listing agents pitch the spread as a one-off opportunity: a rare block of contiguous acreage with vines, barns and a sizable manor that could be preserved as a single estate or redeveloped at scale. Whether the roughly $20 million price tag pulls in a major developer or a deep-pocketed private buyer remains to be seen, but the listing underscores the North Fork’s new status as a destination for big-ticket land plays this season.
