195 Cinnabar Avenue presents a rare opportunity to acquire an approximately 4.2-acre residential development site in Petaluma, one of Sonoma County's most sought-after communities. Positioned just minutes from Downtown Petaluma, the property combines immediate utility with long-term development potential through its R4 zoning designation, which allows residential densities ranging from 8.1 to 18 units per acre. This flexibility creates an attractive opportunity for developers, investors, and land bankers seeking a site capable of supporting a future residential project in a market characterized by strong housing demand and limited infill development opportunities. The property is improved with a renovated historic residence originally built in 1880, offering character-rich architecture, hardwood floors, high ceilings, and potential interim income while future development plans are pursued. Existing public water and utility connections, combined with gently sloping topography, support a variety of potential residential development concepts permitted under zoning. Beyond the property's physical attributes, its location enhances its appeal. The site is approximately 1.5 miles from Downtown Petaluma, approximately 1 mile from U.S. Highway 101, and approximately 1.8 miles from the SMART Station, providing convenient connectivity throughout Sonoma County and the greater Bay Area. Petaluma's established downtown district, employment base, retail amenities, and regional transportation access contribute to the property's long-term residential demand fundamentals.