Hewlett House is a historic home located at Cold Spring Harbor in Suffolk County, New York, United States. It is a two-story, gable roofed dwelling built about 1815 and enlarged in the 1870s. It features a one-story, shed roof front porch with a bracketed cornice and square columns.
|Location||559 Woodbury Rd., Cold Spring Harbor, New York|
|Area||6 acres (2.4 ha)|
|MPS||Huntington Town MRA|
|NRHP reference No.||85002533|
|Added to NRHP||September 26, 1985|