San Francisco News: Mission Bay Affordable Housing Plan Envisions 398 Homes in Two Phases

SAN FRANCISCO NEWS | ORIGINAL LOCAL NEWS · OCTOBER 2026

San Francisco’s Office of Community Investment and Infrastructure filed 2026 environmental notices for a Mission Bay South Block 4 East housing development. Together, the two phases are described as providing 398 affordable rental units at the intersection of Third Street, Mission Rock Street and China Basin Street.

What the public documents establish

Phase One is described as a roughly 160-foot building with 165 affordable rental homes and about 1,253 square feet of ground-floor commercial tenant space. Phase Two would stand approximately 225 feet high and add 233 affordable rental units. Both are part of the Mission Bay South Block 4 East plan, but the filings address separate phases and approvals.

Why this matters locally

Affordable housing is a central public issue in San Francisco, but a filed project plan should not be confused with apartments already available for lease. The notices do not establish move-in dates, eligibility screening or the final rent schedule for individual households. Construction, financing and tenant selection require subsequent public records.

What residents can check next

San Francisco News will track groundbreaking, completed financing, building permits and actual leasing information through OCII and the housing operator. Residents seeking units should rely on official housing lottery and eligibility announcements, rather than interpreting environmental notices as applications.

Primary source

San Francisco OCII — Mission Bay South Block 4 East Project, April 15, 2026.

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