Contra Costa County Administration Building and Jail Demolition and Redevelopment Project

Project overview

Vanir is providing project and construction management services for the demolition of Contra Costa County’s old administration building and jail. This project will also include the construction of a new satellite administration building and public plaza area, continuing the County’s development goals of creating one unified civic campus and enhancing the downtown area along Pine and Escobar streets.

  • Satellite Administration Building: The three-story, 61,555-square-foot satellite administration building will house various County departments and include a café on the first level and a parking garage with 76 spaces. Designed to achieve Total Resource Use and Efficiency (TRUE) and LEED Gold certifications, the project will achieve 90% waste reduction through reuse and recycling strategies, such as reusing marble and wood paneling from the existing administration building.
  • Public Plaza: The 25,000-square-foot public plaza will include a series of outdoor spaces to enhance the downtown atmosphere and promote the well-being of employees and visitors. Intimate areas will provide quiet retreat space while larger areas will accommodate various community events.

Continuing to serve a long-term client

Vanir began working with Contra Costa County in 2017 and played a key role in the successful delivery of two award-winning, design-build facilities completed in 2020 — a 72,000-square-foot Administration Building and a 38,000-square-foot Emergency Operations Center/Public Safety Building.

Martinez, California
Contra Costa County Public Works Department
Design-Build Architect


Design-Build Contractor


Square Footage
61,555 SF
Construction Cost
$58 Million
Start Date
Completion Date