Neiderhurst is a historic estate located at Palisades in Rockland County, New York. The main estate house was built as a summer home between 1872 and 1874 in the High Victorian Gothic style. It is a two-story, "L" shaped residence surmounted by steep gable roofs. It was built by Winthrop S. Gilman, Jr. (1839–1923), son of Winthrop Sargent Gilman (1808–1884). Also on the property are a small observatory converted to a cote; Fern Lodge, built 1866, a residential outbuilding that was formerly the stables; a barn converted to residential use; a concrete pergola; and stone shed. The estate grounds retain a park-like quality.