The Whitney Avenue Historic District is a historic district in the East Rock neighborhood of New Haven, Connecticut. It is a 203acre district which included 1,084 contributing buildings when it was listed on the National Register of Historic Places in 1989.It is bordered by Edgerton Park and East Rock Park on the north. It abuts the Prospect Hill Historic District to the west and the Orange Street Historic District on the east. Yale University facilities border on the southwest and south. The district is named after Whitney Avenue, the principal thoroughfare in the district, which is lined with mansions or other larger houses, while the smaller streets included in the district have mostly smaller homes.Per its NRHP nomination, the district is significant as a well-preserved middle and upper-class residential neighborhood which reflects the process of suburbanization in New Haven during the late 19th and early 20th centuries...and which has retained its integrity with few intrusions or alterations.... The houses in the district embody the distinctive characteristics of several periods and types of domestic architecture, including locally outstanding examples of Queen Anne, Shingle, Colonial Revival, Tudor Revival, and other styles....
