Upon learning that the new owner of 857 River Side Drive applied for a demolition permit to demolish the rare mid 19th century house and replace it with a 13-story apartment tower, the Upper Riverside Residents Alliance began working to preserve the New York City site tied to the Underground Railroad.
The house was once owned by Dennis Harris, a hero of the Underground Railroad, and Judge John Newhouse, his friend and colleague. Both men were ardent abolitionists, civic-minded entrepreneurs, and pivotal figures in the growth of Washington Heights. Sites related to abolitionists and the Underground Railroad are rare in New York, and this Greek Revival–Italianate house is arguably the only one known to survive north of 96th Street in Manhattan.