First Phase of the Mission Bay South Block 4 East Project
Summary
SCH Number
2025120187
Public Agency
Office of Community Investment and Infrastructure, Successor Agency to the San Francisco
(OCII)
Document Title
First Phase of the Mission Bay South Block 4 East Project
Document Type
NOE - Notice of Exemption
Received
Posted
12/4/2025
Document Description
The Mission Bay South Block 4 East Mixed-Use Affordable Residential Project is comprised of two affordable rental housing projects on Mission Bay South Block 4 East (“MBS 4E”), providing a combined total of 398 units. The First Phase of the MBS 4E Project (the "Phase I Project") is located on the southern half of MBS 4E fronting both China Basin and Third Streets in San Francisco and consists of a 160-foot-high building containing 165 affordable rental units and one approximately 1,253-square-feet ground-floor commercial tenant space on Third Street. The Second Phase of the MBS 4E Project is proposed for the northern one-half of MBS 4E, fronting Mission Rock and Third Streets, pending approval of a rezoning by the City and County of San Francisco. This Notice of Exemption applies only to the Phase I Project approvals.
Contact Information
Name
Jose Campos
Agency Name
Office of Community Investment and Infrastructure
Job Title
Manager of Planning and Design Review
Contact Types
Lead/Public Agency
Phone
Email
Location
Cities
San Francisco
Counties
San Francisco
Regions
Citywide, Countywide
Cross Streets
Third Street and China Basin Street
Zip
94108
Total Acres
1
Parcel #
8711-029B
State Highways
I-280
Railways
Caltrain
Schools
Mission Bay School
Waterways
San Francisco Bay, Mission Creek
Notice of Exemption
Exempt Status
Statutory Exemption
Type, Section or Code
California Public Resources Code Section 21080.40
Reasons for Exemption
The Phase I Project is statutorily exempt from CEQA environmental review because it is an affordable housing project that meets certain criteria under California Assembly Bill 1449 (2023), codified at Cal. Public Resources Code § 21080.40, ("?? 1449"). To qualify for the AB 1449 affordable housing exemption, projects must satisfy several rigorous requirements centered on affordability, location, environmental constraints, labor standards, and an administrative process. OCII engaged an environmental review consultant, ICF Jones & Stokes, Inc., to assist in the review required by the CEQA statutory exemption. OCII has determined that the Phase I Project meets the AB 1449 criteria for the CEQA statutory exemption, which include, but are not limited to, the following: The Phase I Project is a 100% affordable rental housing project with more than two-thirds of the square footage of the project designated for residential use. All residential units on MBS 4E will be dedicated to lower-income households (earning no more than 70% of Area Median Income ("AMI") as published by the U.S. Department of Housing and Urban Development ("HUD") and the California Tax Credit Allocation Committee ("TCAC") excluding unrestricted manager units and thus meet the definition in Section 50079.5 of the Health and Safety Code. The Phase I Project is subject to a recorded TCAC Regulatory Agreement prior to the issuance of building permits. The Developers, under conditions of approval in OCII Resolution No. 29-2025 for the Phase I Project, will comply with the prevailing wage requirements, offer employment opportunities to State of California registered apprentices and provide health insurance to construction workers and their dependents and thus meet the standards in Sections 65912.130 and 65912.131 of the Government Code The MBS 4E site is located within an urbanized area, adequately served by existing utilities, and within a ½-mile walking distance of multiple major transit stops. The site is in a very low vehicle travel area, which is below the regional average daily Vehicle Miles Traveled per capita and is within one mile of more than six neighborhood amenities he MBS 4E site is not located on sensitive lands such as wetlands, special flood hazard areas, high fire hazard severity zones, hazardous waste sites or on other areas described in Section 65913.4 (a) (6) (B) to (K) of the Government Code. In advance of the Phase I Project's approval, a Phase I Environmental Site Assessment was completed. Any identified hazardous conditions in a future Phase Il environmental assessment will be fully remediated before construction can begin. OCII, working with the City Archaeologist, has consulted with tribal leaders of the California Native American tribe affiliated with the geographic area regarding development of the Site. Based on these consultations, the Developers are required to implement measures identified to mitigate any potential effects on tribal cultural resources on the MBS 4E site
County Clerk
San Francisco
Attachments
Notice of Exemption
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