Sebastiani Vineyards is located just two blocks east of the Sonoma Plaza, at 389 Fourth Street East. The original winery was a series of stone buildings erected around the turn of the 20th century. Those buildings, which are all still standing and in use as part of the winery have just undergone a careful, historic restoration. As part of the county-mandated seismic retrofit, we meticulously preserved all of our priceless items and heirlooms including our famous carved casks. We have unveiled the beautiful, century-old stone walls that we had mistakenly disguised for many years.