Gateway central Sebastopol location. Located at the intersection of Sebastopol Ave. (U.S. Hwy. 12) and Petaluma Ave., (U.S. Hwy. 116). Great exposure. Newley painted exterior and landscaping, this central Sebastopol office / retail building is perfect for any professional or retailer. Walk to local stores, restaurants and the Barlow. A must see property if your looking in the City of Sebastopol.