Sunnyside (Richfield Springs New York)
 Sunnyside also known as the S.D. Styles Summer Residence is a historic home located at Richfield Springs in Otsego County New York. It was built in two stages in 1890 and 1909 and is a dwelling in the Queen Anne style. It is a 2-story frame house with a shingled exterior. The house is composed of a full 2-story gable-roofed main block with a 1 1⁄2-story east addition with a hipped roof.