Newsom was joined by Senate President pro Tempore Toni G. Atkins (D-San Diego) and other state leaders in Santa Clara County.
Earlier this month, Newsom proposed $12 billion in new funding to get more people experiencing homelessness in the state into housing and to "functionally end family homelessness" within five years.
The funding is part of Newsom's $100 billion California Comeback Plan, an economic recovery relief plan aimed at addressing five of the state's biggest challenges.
The nation's most populous state has an estimated 161,000 people experiencing homelessness, which is more than any other state.
A new state database shows that nearly 250,000 people sought housing services from local housing officials in 2020. Of that number, 117,000 people are still waiting for help while nearly 92,000 people found housing.
Newsom launched projects "Roomkey" and "Homekey," using federal funding to house homeless residents in hotels and motels during the pandemic and helped cities, counties and other local entities buy and convert motels and other buildings into housing.
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A February audit criticized the state for its fragmented approach to addressing homelessness and urged the state to track spending and set statewide policy.
It identified at least nine state agencies that spent $13 billion on 41 programs to address homelessness without evidence to show what was effective.
KABC and the Associated Press contributed to this report.