Alder Manor

Alder Manor is a 72-room Renaissance Revival mansion in Yonkers, New York, designed in 1912 by the architecture firm Carrère and Hastings for mining magnate William Boyce Thompson. Named for Thompson's Montana hometown of Alder Gulch, the estate sits on more than six acres of classically inspired gardens filled with authentic Roman artifacts imported from Italy in the early twentieth century. The interior is defined by a succession of original architectural features: marble floors, walnut and oak paneling, a rare English-style trompe-l'oeil ceiling, a 15th-century Italian stone fireplace, an actual 16th-century Italian church façade incorporated into the structure, a three-story staircase, and an indoor tiled pool topped by a stained glass window. Many of the 72 rooms retain original Renaissance paintings and historic artifacts. The grounds command views of the Hudson River and the Palisades. Alder Manor is available for film, photo, and commercial shoots, with convenings, retreats, private events, and weddings anticipated in 2026.