Washington Park Historic District
U.S. National Register of Historic Places
U.S. Historic district
New Jersey Register of Historic Places
Washington Park Builder's Houses
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Location	Roughly bounded by Green Brook Rd., Grove Ave., E. Front St., and Geraud Ave. North Plainfield, New Jersey
Coordinates	40°37′4″N 74°26′7″W / 40.61778°N 74.43528°W / 40.61778; -74.43528 (Washington Park Historic District)
Area	100 acres (40 ha)
Built	1868 (1868)
Architect	Charles H. Smith
Architectural style	Second Empire, Queen Anne, Shingle Style
NRHP reference No.	87000603[1]
No parameter No.	2574[2]
Significant dates
Added to NRHP	April 9, 1987
Designated No parameter	March 4, 1987

The Washington Park Historic District is a 100-acre (40 ha) historic district located in the borough of North Plainfield in Somerset County, New Jersey. It was added to the National Register of Historic Places on April 9, 1987, for its significance in architecture, landscape architecture, and community planning. Featuring houses built from 1868 to 1917, the district includes 145 contributing buildings.^[3]

The district is in a residential area of North Plainfield, bordered by the Stony Brook, the Green Brook, and Grove Avenue. The houses display a variety of Late Victorian styles. The house at 11 Rockview Avenue was built in the 1860s as a Downingesque "Swiss" cottage. The houses at 12 and 16 Rockview Avenue were built 1882–1894 and feature Late Victorian Eclectic style. The house at 32 Rockview Avenue was built 1882–1894 with Second Empire style and features a mansard roof. The Church of the Holy Cross, an Episcopal Church, was built 1868–1869 with Carpenter Gothic style.^[3]

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  11 Rockview Avenue
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  12 Rockview Avenue
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  16 Rockview Avenue
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  32 Rockview Avenue
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  Church of the Holy Cross

• National Register of Historic Places listings in Somerset County, New Jersey

• Media related to Washington Park Historic District (North Plainfield, New Jersey) at Wikimedia Commons
• "Washington Park Historic District: Historic Architectural Design Guidelines" (PDF). North Plainfield Historic Preservation Committee. April 2021.
• "Washington Park Historic Association".