New Castle County

US States / A-G / Delaware / New Castle County

New Castle County is named for the town of New Castle by Dutch Governor Anthony Colve as an Anglicization of “Nieuw Amstel”.


Created:  August 8, 1673

County Seat: 

New Castle

Wilmington  1673 – present


County Courthouse – Wilmington  


Location:  500 King Street / East 4th Street

Built:  1999 – 2002

Style:  Modern

Architect:  Buck Simpers Architects & Associates, Inc., Grozen Samton, Justice Planning Associates, HLM Design, Inc. and Beyer & Associates, Inc.

Contractor:  Edis Company and Jacobs Facilities, Inc.


Description:  The building faces west and is a fourteen story concrete and glass structure. The building is sited on a five-acre parcel of land. The building forms an “L” shape with a low four story south wing and a higher east wing. On the west front is a large plaza. The central recessed entrance is on the first story of the east wing. Red colored brick facing is along either side of the entrance. Above is a projecting section with glass panel walls. The windows of the east tower are horizontal. The roof line is flat. The building also houses the Family Court and the Delaware Chancery Court.


See:  The Delaware Supreme Court in New Castle County is located to the north at 820 North French Street / East 9th Street.


Old County Courthouse – Wilmington  




Location:  1000 North King Street / 11th Street

Built:  1914 – 1916

Style:  American Renaissance

Architect:  Palmer Hornbostel & Jones

Contractor:  Unknown


Description:  The building faces west and is a three story structure. The west front has a colonnade with entrance section on the north and south sides. The entrances have large fanlights and motifs with a pediment at the roof line. A balustrade runs along the flat roof line. The building was named as the Daniel Herman Courthouse. The building is now an office building.


County Administration – New Castle




Location:  87 Reads Way Commons Boulevard

Built:  Unknown

Style:  Modern

Architect:  Unknown

Contractor:  Unknown


Description:  The building faces southwest and is a two story concrete and glass structure. The southwest front has a two story recessed glass walled section which projects from the main building. The main building has horizontal windows and the roof line is flat. The building is named as the New Castle County Government Center and was formerly a commercial building which was renovated to house the county offices.


Old County Court House – New Castle




Location:  211 Delaware Street / East 2nd Street

Built:  1730 – 1845

Style:  Georgian and Colonial

Architect:  Unknown

Contractor:  Unknown


Description:  The building faces southwest and is a two story red-brown colored brick and wood structure. The building faces southwest and was completed in 1731. The building was constructed in three sections. The west wing was constructed in 1845. The center section has a central entrance with small balcony above on the second story. On the roof ridge is a balustrade with open belfry at the center with red colored roof. The east wing is lower with a central entrance. The building is now a museum.


See:  National Register of Historic Places – New Castle County Courthouse



N – Chester County, Pennsylvania and Delaware County, Pennsylvania

E – Gloucester County, New Jersey, Salem County, New Jersey and Cumberland County, New Jersey

S – Kent County

W – Kent County, Maryland and Cecil County, Maryland



























































Photos taken 2013