June 1985
Seneca Center is founded with a six-bed residential unit and nonpublic school classroom.

June 1986
Sub-acute residential treatment is added with capacity to serve 30 children.

October 1987
After School Program is added to continuum of services.

September 1988
Integrated day treatment and nonpublic school services are expanded to serve 80 children.

August 1990
Intensive foster care legislation (California Senate Bill 2234) is sponsored by Seneca, with program implementation beginning January 1991.

September 1991
Fremont day treatment program is added with capacity for 60 children.

August 1995
Building Blocks Therapeutic Preschool opens its doors.

November 1995
San Francisco Alternatives Program begins providing hospital alternative services.

August 1997
Project DESTINY initiates services for Alameda County children and families.

September 1998
Seneca begins providing public school-based mental health services.

August 2000
Mobile Response teams begin providing crisis intervention services in the East Bay.

June 2001
San Francisco Alternatives Program begins operating as a community treatment facility, providing the highest level of community-based treatment available in California.

August 2001
Seneca opens the Oak Grove Community Treatment Facility in Concord.

November 2001
Seneca receives a grant of real property at the former Oakland Naval Medical Center (Oak Knoll), which will be used to develop a new nonpublic school campus and treatment center.

March 2002
Solano Receiving Center is established to provide a safe haven for children temporarily removed from their homes because of challenging family circumstances.

July 2006
San Francisco Connections, a strengths-based wraparound model for youth in foster care, is launched in San Francisco with the San Francisco Human Services Agency and 45 community partners.