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Potrero Yard Modernization Project


Project Introduction

The Potrero Yard Modernization Project will replace an obsolete, century-old bus yard with a modern, three-story, efficient bus maintenance and storage facility, equipped to serve the SFMTA as it transitions to an all-electric fleet.

A modern Potrero Yard will address critical transportation issues and improve:

  • Efficiency: Repair buses faster, improving Muni’s reliability
  • Sustainability: Provide the green infrastructure needed for an all-electric fleet
  • Future Growth: Accommodate fleet as it grows – room for 54% more buses at the yard
  • Work Conditions: Improve environments, amenities and safety conditions for 800+ SFMTA staff

Learn more about the need to replace this 100+ year-old bus yard.

Public tours of Potrero Yard are usually offered monthly.  Check here for tour availability:

Potrero Yard public tour information 

(You can also take a virtual tour of the yard.) 

Project Design

On November 21, 2022, the SFMTA awarded the project’s predevelopment agreement to Potrero Neighborhood Collective (PNC) as lead developer. PNC will work together with the City, community and project stakeholders to further refine the Project design during the pre-development phase.

The PNC design includes a modern, three-story bus storage and maintenance transit facility, over 500 units of affordable housing for those with low or moderate incomes, and multiple opportunities for commercial retail and concessions. The project would be the nation’s first known joint development of a bus maintenance facility with housing constructed adjacent to and above– a groundbreaking approach that prioritizes a safe, equitable, and sustainable transportation system while also supporting the City’s housing goals.

a conceptual rendering of Potrero Yard from the intersection of Bryant and Mariposa

A conceptual rendering of Potrero Yard from the intersection of Bryant and Mariposa streets (Arcadis IBI Group) 

The ambitious housing affordability goals are reliant on competitive City and non-City funding sources. Some of these state financing sources are highly competitive because funds are spread across the entire state, and there are many projects seeking financing every year. Should the project not secure these sources on a schedule that can accommodate the construction of the bus facility, the housing program may need to be amended.

The project is designed to support San Francisco’s sustainability, housing, and safety priorities as a Transit-First City. The project encourages public transit, bicycling and walking as sustainable alternatives to driving. Resident and public parking are not provided on-site.

  • Up to 513 affordable housing units that include a mix of studio, 1-, 2-, and 3-bedroom units
  • New public restrooms conveniently located near Franklin Square Park
  • Improved pedestrian and bike infrastructure for enhanced safety and comfort
  • An economic inclusion plan that prioritizes Local Business Enterprise (LBE) inclusion and local hire
  • Onsite amenities such as family childcare centers, laundry facilities, and community rooms

View additional information about SFMTA project planning and concepts, prior to the selection of Potrero Neighborhood Collective.

Project Timeline 
2018 to 2022
2022 to 2023
Design & Permitting
2024 to 2027
Receive new buses
Cost Estimate
$500 m (in 2019 dollars and exclusive of costs not directly related to construction)
Current Phase or Stage
Predicted Completion
Project Status
Environmental Review
Project Success
On schedule
Provide needed space for a growing bus fleet.
Facilitate the transition to an all-electric fleet.
Improve the efficiency and timeliness of bus maintenance and repairs.
Improve working conditions for all staff and enhance resiliency to climate change and natural disasters.

Building Progress Program

In 2017, the SFMTA launched the Building Progress Program, a $2.3 billion multi-year effort, to repair, renovate, and modernize the San Francisco Municipal Transportation Agency's (SFMTA) aging facilities to keep the City moving and transition to an all-electric bus fleet. 

Potrero Yard, located at Bryant and Mariposa streets, is the first facility scheduled under the Program that the SFMTA will modernize and renovate. 

Project video(s)
San Francisco City Seal
Muni logo
San Francisco Office of Economic and Workforce Development logo
San Francisco Public Works logo
SF Planning Department logo
Contact Information
Potrero Yard
Kerstin Magary, Facilities and Real Property Management Senior Manager
Bonnie Jean von Krogh, Building Progress Public Affairs Manager
John Angelico, Public Information Officer