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. Also on the property is a small carriage barn.

It was listed on the National Register of Historic Places in 1988.