In October 1988, Stone Farm structures received the designation of a historic landmark from the Cultural Heritage Board of the City of Santa Rosa. The farmhouse, most likely built in 1872, is an excellent example of the simplified Greek Revival (aka Homestead) style of architecture. In addition, the property contains two historic outbuildings. The large two-story barn has mortise and tenon joinery and square hand-forged nails, indicating early construction (prior to 1900). The smaller barn is of more recent construction (ca 1940) and is included as part of the farm complex named in the historic designation. In addition to its historical value Stone Farm is rich in natural resources.
Irwin Creek flows from the northeast corner of the property into the Laguna de Santa Rosa. The western edge of the property borders the Laguna. The western edge of Stone Farm borders the Laguna de Santa Rosa. This area is fenced to exclude livestock and is referred to as the Laguna Wetland Reserve. A number of special management projects have
occurred in both non-farmed areas, as well as throughout the greater farm.