Turning evidence into action to prevent and end homelessness 

The UCSF Benioff Homelessness and Housing Initiative (BHHI) provides accurate, timely, policy-oriented research about homelessness for local, state, and national policymakers and practitioners.

Learn More About BHHI

181,000+
Californians experience homelessness daily
68%
of homeless Californians are unsheltered
7,754
people experiencing homelessness in San Francisco
21%
of homeless people across the US are older than 55
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Towards a New Understanding Title Page

Groundbreaking BHHI Study

The California Statewide Study of People Experiencing Homelessness

The UCSF Benioff Homelessness and Housing Initiative (BHHI) has released the largest representative study of homelessness in the United States since the mid-1990s, providing a comprehensive look at the causes and consequences of homelessness in California and recommending policy changes to shape programs in response. 

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Interim Evaluation: Berkeley Encampment Resolution RV Buyback Program

New Report

A Novel Approach to Encampment Resolution

The City of Berkeley launched an effort to resolve a longstanding encampment, where most residents lived in oversized vehicles. At the City’s request, BHHI is conducting a scientifically rigorous, independent evaluation to understand what works, what doesn’t, and how future programs can better support people as they move from encampments into shelter and housing.

Featured Content

Our Research
Latino/a experiences of homelessness in California: Qualitative findings from the California Statewide Study of People Experiencing Homelessness (CASPEH)
March 10, 2026
The number of Latino/a people experiencing homelessness in the United States is increasing due to increased housing costs, economic disruption from the COVID-19 pandemic, and increased homelessness am...
Our Research
Attitudes toward tobacco-free and cannabis-free policies among residents in permanent supportive housing who use tobacco, cannabis, and other substances
Maya Vijayaraghavan
April 15, 2026
Over 60% of permanent supportive housing (PSH) residents smoke cigarettes, and over 50% use cannabis. Co-use of tobacco and cannabis may be linked with other substance use. We explored attitudes towar...
Our Research
Syndemic lives of women who smoke and experience homelessness: secondary analysis of US qualitative data
January 9, 2026
Tobacco use remains the leading cause of preventable deaths worldwide. Despite efforts by many countries to reduce the impact of tobacco products and lower smoking rates, smoking prevalence is higher ...
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Webinar: Understanding Health & Homelessness

People experiencing homelessness in California face high rates of chronic illness and disability, and numerous barriers to care. These health challenges make it harder for people to obtain and retain…

Virtual Event
Videos
Webinar: Latine Californians' Experiences of Homelessness
May 20, 2025
Latine Californians represent more than one-third of the state's homeless population. Yet their experiences are too often left out of research, policy, and service design. The UCSF Benioff Homeles...
Videos
Webinar: Behavioral Health & Homelessness: Findings from CASPEH
March 20, 2025
Homelessness and behavioral health issues (mental health and substance use) are intertwined. The UCSF Benioff Homelessness & Housing Initiative held a webinar about this complex bidirectional relation...

"There is no medicine as powerful as housing."

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MargotKushelMD UCSF BHHI.jpeg
Margot Kushel, MD
Director, UCSF Benioff Homelessness & Housing Initiative

"The gravest threats to health are due to poverty, discrimination, and particularly homelessness. Here at UCSF, many dedicated researchers have devoted their careers to addressing these health inequities. The Benioffs’ continued leadership on these issues, exemplified by this generous gift, will further energize our efforts, and strengthen our links to communities in need at the local, state and national levels."

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Sam Hawgood, MBBS
Sam Hawgood, MBBS
Chancellor, University of California, San Francisco

"The world needs a North Star for truth on homelessness. The UCSF Benioff Homelessness and Housing Initiative will be that North Star, providing the latest research, data, and evidence-based solutions to ensure we’re investing in programs that will help solve the homelessness crisis."

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Marc Benioff
Marc Benioff