Since the 1960s, with the passage of the Lanterman Developmental Disabilities Services Act (Lanterman Act), the role of California’s Developmental Centers (DCs) has been changing.

The 2012 Budget Trailer Bill (AB 1472) placed a moratorium on new admissions to DCs, except for individuals in the criminal justice system or those in acute crisis who need short-term stabilization.

By 2014, a statewide task force released their Plan for the Future of Developmental Centers in California. The plan’s recommendations included continuation efforts to expand available supports in the community, allowing individuals to transition into community living options that best meet their needs.

The 2015 Budget Trailer Bill (SB 82) required the Department of Developmental Services (Department) to submit to the Legislature, on or before October 1, 2015, a plan or plans to close one or more DC. The Trailer Bill, and Section 4474.1 of the Welfare and Institutions Code, define the closure process as it relates to the Department, stakeholders, and the Legislature.

Implementation of closure plans are contingent upon legislative approval, and following that approval, require the Department to provide quarterly briefings to legislative staff on progress related to the plan.

Resident Transition

Planning for where individuals will move is a careful and personalized process. Through the Individual Program Plan (IPP) process, the individual and their Interdisciplinary Team (IDT) will decide where that person should live. Learn more abou the transition process.

The individuals who lived and worked at California’s DCs remain a valuable part of the Department’s history. Below is a synopsis of each previously closed DC:

Agnews Developmental Center was established by an act of the California Legislature in 1885 as a facility for the care of the mentally ill. The first patients were received in 1888. Individuals with developmental disabilities were first admitted to a special habilitation program activated in 1965. In 1972 the programs for the mentally ill were discontinued and the center served only persons with developmental disabilities.

The 2003-04 Governor’s Budget directed the Department to develop a plan to close Agnews Developmental Center. The Agnews Closure Plan (Bay Area Project) was developed with input from an Advisory Committee consisting of current and former Agnews residents, their families, Agnews employees, regional centers, advocates, and other stakeholders, and may be viewed on the Agnews Closure Plan Main Page. In March 2009, the last consumer moved and the residential facility was closed. Following the closure, Agnews campus was used to provide outpatient clinic services to consumers who resided in the community through April 2011.

In July 2011 the Regional Project of the Bay Area and the Community State Staff Administration were relocated to a leased office space in the city of Campbell to continue providing transition services and support to consumers in the local area.

With the final sale of the land pending, the Agnews campus was vacated and the land was turned over to the Department of General Services.

Lanterman Developmental Center (LDC), which opened in 1927 in Pomona, consisted of nine client residences, one acute hospital unit, a variety of training and work sites, a Vocational Training Center, and recreation facilities including playgrounds, camp, carousel, track, and a ballpark at the time of closure. Other entities housed on campus were a Research and Staff Training Building, a Child Day Care Center for community and staff members’ children, a Credit Union and the California Conservation Corps.

Located in Southern California’s vibrant San Gabriel Valley Region, LDC bordered the cities of Pomona, Diamond Bar, and Walnut while resting beneath Mt. “Baldy’s” seasonally snowcapped peak. LDC operated 24-hours a day, seven days a week, in order to serve citizens of California who faced the challenges of developmental disabilities. The 87-year history of LDC’s name changes parallels the tremendous shift in perception as to how the people of California understand their fellow citizens who lived at LDC.

Pacific Colony – Thinking “feeblemindedness” to be a menace, the California Legislature created Pacific Colony as a Southern California facility to detain the “feebleminded”. People with developmental disabilities were “inmates”, needing to be locked away from society forever because of their “insanity.” The Pomona location welcomed its first 27 “inmates”, on May 2, 1927. At that time, only the city of Pomona existed in the local area.

By 1946, over 1,900 people crowded into a facility that had only grown large enough to hold 1,512 people. With World War II finally over, the state allocated more money for expansion and improvements.

Pacific State Hospital – The name change in 1953 marked a statewide shift in understanding that had begun in the 1930’s. No longer were residents of Pacific considered “inmates” but “patients” who were sick and needing treatment to be made well. The new use of the socio-psychological team, social workers, psychologist, and parents and innovative practices such as in-service training for nurses provided some of the practical evidence of this shift. The era also marked the start of a movement toward helping people with developmental disabilities prepare for living in the broader community.

Frank D. Lanterman State Hospital and Developmental Center – Championing the cause of people with developmental disabilities throughout his career, State Assemblyman Frank D. Lanterman ensured their civil rights and guaranteed them life-long services through the creation of the Lanterman Act. He also initiated the network of community resources known as the Regional Centers. In honor of his dedication, Pacific changed its name in 1979.

Lanterman Developmental Center – People with developmental disabilities are now perceived as individuals with special needs rather than “patients” and referred to as “residents.” By dropping “State Hospital” during the 1980’s, developmental centers throughout California adopted this philosophy and promoted the fact that all residents receive progressive habilitation training.

LDC’s last resident moved into the community on December 23, 2014 and the facility began warm shut down operations. The facility property was transferred to the California State Polytechnic University, Pomona on July 1, 2015.

Sierra Vista opened its doors for service March 28, 2000. It represented a new approach to providing services to California citizens with Developmental Disabilities and was located in Yuba City, California. Sierra Vista was leased and operated by the Department of Developmental Services and provided residential and treatment services for approximately 55 adults who had developmental disabilities and who also had challenging behavioral issues. At the time Sierra Vista opened there were neither appropriate community-based services nor space in the existing developmental centers to serve individuals with these significant needs.

In June 2009, in the midst of California’s severe fiscal crisis, the decision was made to close Sierra Vista as it was determined that the men and women residing at Sierra Vista could be well served in other settings within the community and at other state operated facilities. The last person moved from Sierra Vista on December 8, 2009 and the facility was officially closed on February 28, 2010.

Sonoma Developmental Center (SDC) is the oldest facility in California established specifically for serving the needs of individuals with developmental disabilities. The facility opened its doors to 148 residents on November 24, 1891, culminating a ten-year project on the part of two prominent Northern California women who had children with developmental disabilities. In 1883, Julia Judah and Frances Bentley were responsible for forming the California Association for the Care and Training of Feeble Minded Children. Its aim was “to provide and maintain a school and asylum for the feeble-minded, in which they may be trained to usefulness.”

When the Santa Clara home became inadequate a few years later, the legislature appointed a commission and appropriated $170,000 to purchase land, construct facilities and handle commission expenses. The commission included Captain Oliver Eldridge, after whom the community of Eldridge is named. Following lengthy legislative battles over the proposed funding, the commission selected the present site: a 1640-acre parcel which featured an ample water supply, drainage, and two railroad lines that passed through the property.

SDC was transferred to the Department of General Services in 2019.

In 1948, the California State Legislature appropriated funds for a site located in Costa Mesa for Fairview State Hospital, currently Fairview Developmental Center (FDC), for individuals with developmental disabilities. In 1950, the 750 acres for this site were officially purchased. Funds were then appropriated in 1953 for the construction of a four-story, 306 bed, 10 ward receiving and treatment hospital, an admin building, kitchen, commissary, maintenance shops, garage, laundry, boiler plant, and four additional warns each with a 70-bed capacity. Subsequent appropriations authorized 30 additional wards, a school, firehouse, rehabilitation therapy building, auditorium, and employee residential services. The complex consists of 39 individual buildings and structures that are considered to be of historic age, i.e., built in 1974 or earlier.

In the initial land purchase, a provision included a property for a farm program. Fairview, however, never initiated a farm program, and in 1979, 239 acres were sold to the city of Costa Mesa. The first individuals arrived at Fairview on January 5, 1959. By May 30, 1960, almost 1500 individuals resided at the new facility. Fairview’s construction was finally completed in 1964, and at the time the facility had a licensed bed capacity of 2,622. Treatment trends eventually decreased the population of large institutions like Fairview. By March of 2006, the number of individuals at Fairview was 635.
FDC is currently in warm shutdown in order to maximize efforts towards person-centered and trauma informed care in a community-based environment for individuals.

In February 2020, all individuals at Fairview Developmental Center (FDC) moved into community settings. Legislation established Government Code 14670.31, which authorizes the Department to enter into an agreement with the City of Costa Mesa to develop a specific plan for the FDC property. This includes a land use planning and actual disposition that will be handled by the Department of General Services.

The FDC property includes an apartment development called Harbor Village and a 20-acre parcel called Shannon’s Mountain. Shannon’s Mountain is reserved for an additional affordable housing development.


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Last modified: July 3, 2025