Eleazer Hart House is a historic home located at 243 Bronxville Road in the Cedar Knolls section of Southeast Yonkers, Westchester County, New York. It was built in 1788 and is a Federal period residence. The building incorporates an earlier tenant farmhouse dating from the Philipse Manor era (1684–1783) and most likely dates to about 1760. The older house is a 1+1⁄2-story, three-by-two-bay building on a stone foundation. The main house is five bays wide on the first floor and three bays on the second. It has a gable roof and is clad in wide shingles, painted white. Also on the property is a 1+1⁄2-story, gable-roofed barn.