Rare 4.2-acre infill opportunity at the end of a private drive in Petaluma. It offers significant potential for those with vision. Open, usable land with mature oaks and pasture views. The site is anchored by the historic Anderson Ranch, a folk Victorian farmhouse (approx. 900 sq ft) dating to around 1879, formerly part of a working chicken ranch tied to early Petaluma pioneering families. Soaring ceilings, hardwood floors, and three outbuildings add character and flexibility. Septic and city water. Buyer to verify zoning, permitted uses, and development potential with the City of Petaluma.