Ventura County is named for San Buenaventura which is Spanish for St. Bonaventure.
Surrounding County Courthouses:
N – Kern County
S – Pacific Ocean
W – Pacific Ocean and Santa Barbara County
Created: March 22, 1872 
County Seat:
Ventura 1872
Old County Courthouse – Ventura
Location: 501 Poli Street / North California Street
Built: 1911 – 1912
Style: Neo-Classical
Architect: Albert C Martin Sr.
Contractor: Los Angeles Planing Mill Company of Los Angeles.
Description: The building faces south and is a two story white colored terra cotta and concrete structure. The center section projects from the main building and has a central entrance on the first story with arched windows on the second story and four columns rising to the top of the second story. A wide cornice runs above the second story with a cornice at the roof line and recessed section above with a sloped green colored roof. The east and west wings have vertical columns with arched windows on the first story. A balustrade runs along the roof line. The building now serves as the Ventura City Hall.
Note: The previous courthouse was designed by William Dewey Hobson and constructed by W D Hobson and T B Steepleton in 1872. Additions were constructed in 1879 and 1884. The cost of construction of the 1912 courthouse was $225,000.
County Courthouse – Ventura
Location: 800 South Victoria Avenue / Thile Street
Built: 1977 – 1980
Style: Modern
Architect: John Carl Warnecke and Associates and Daniel L Dworsky FAIA and Associates
Contractor: Turner Construction Company
Description: The building faces south and is a four story concrete and glass structure. The building is named as the Hall of Justice and is located on the landscaped Ventura County Government Center. The building forms an “L” shape with a north and east wing. The windows are horizontal. The roof line is flat. The Ventua County Public Facilities Corporation supervised construction
County Administration – Ventura
Location: 800 South Victoria Avenue / Thile Street
Built: 1977 – 1980
Style: Modern
Architect: John Carl Warnecke and Associates and Daniel L Dworsky FAIA and Associates
Contractor: Turner Construction Company
Description: The building faces north and is a three story concrete and glass structure. The building is located on the landscaped Ventura County Government Center and is located on the south side of the Hall of Justice. The windows are horizontal. The roof line is flat. The Ventua County Public Facilities Corporation supervised construction.
See: District Court of Appeal – Ventura
Photos taken 2013