301 Mission Street, Millennium Tower Modified Perimeter Pile Upgrade Project

4 Documents in Project


SCH Number
Lead Agency
City and County of San Francisco
Document Title
301 Mission Street, Millennium Tower Modified Perimeter Pile Upgrade Project
Document Type
NOD - Notice of Determination
Document Description
After the City and County of San Francisco adopted the Final Mitigated Negative Declaration (FMND) for the 301 Mission Street (Millennium Tower) Perimeter Pile Upgrade Project, case number 2018-016691ENV, and approved the project (“adopted project”) on July 17, 2020, the project sponsor revised the project. The 301 Mission Street Modified Perimeter Pile Upgrade Project (“modified project”) would be substantially similar in scope to the adopted project, except that the modified project would install 18 new piles including 12 piles along Fremont Street and 6 piles along Mission Street (as opposed to 52 piles under the adopted project), and that the total mat extension area would be reduced from 2,130 square feet under the adopted project to approximately 1,020 square feet under the modified project. In addition, changes to the permitted shoring and excavation permits include the following: (1) reduction in plan area of excavations on Mission and Fremont streets, based on the reduction in the number of new piles from 52 to 18, (2) change from the use of jet-grouted columns to a secant pile wall system for supporting the excavation, and (3) modification of shoring wall layout to avoid conflicts with the existing PG&E vault and power conduits at the northwest corner of the existing 301 Mission Street building.

Contact Information

Kei Zushi
Agency Name
San Francisco Planning Department
Job Title
Environmental Planner
Contact Types
Lead/Public Agency


San Francisco
San Francisco
Citywide, San Francisco Bay Area
Parcel #
Other Location Info
50,500 square fee
Other Information
C-3-O(SD) - Downtown-Office (Special Development) Zoning District

Notice of Determination

Approving Agency
San Francisco Planning Department
Approving Agency Role
Lead Agency
Approved On
County Clerk
San Francisco
Final Environmental Document Available at


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA


Notice of Determination

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