Portsmouth Square is behind construction fences. SF Rec and Park says the square is closed for renovation through mid-2028. Its restrooms are closed for the whole project, and the department has a Chinatown public restroom map for nearby options. Construction began June 10, 2026.
What's planned
The park sits on top of the Portsmouth Square parking garage. Rec and Park says the design came out of a community design process. Planned features include:
- A large flexible event space with a raised stage
- A new 8,500-square-foot community clubhouse with an assembly area and meeting rooms
- A large shade structure
- A combined playground with adult fitness equipment
- Removal of the Kearny Street pedestrian bridge
- Better accessibility, new plants and lighting, more seating, and a new waterproof roof for the garage
Money comes from the 2020 Health and Recovery Bond, transit center impact fees, state grants and other sources. In an Oct. 9 update, Rec and Park said crews doing foundation work had found pavement without enough support on part of Walter U. Lum Place next to the park. The SFPUC has pushed sewer work on that street until after spring 2027.
Why it matters
Portsmouth Square was San Francisco's earliest public square. Wikipedia says it was set aside as the plaza of Yerba Buena in 1835. It was renamed for the USS Portsmouth after Capt. John B. Montgomery raised the American flag nearby on July 9, 1846. Sam Brannan announced the discovery of gold there in May 1848, and California's first public school was built at its corner in 1847. Rec and Park notes it also served as a refugee camp after the 1906 earthquake.