Mission Bay
Block 4E
New Homes for
San Francisco Families
MB4E is an exciting new development that will bring much-needed affordable housing to the Mission Bay neighborhood of San Francisco.
Developed by Curtis Development and Bayview Senior Services, this project is designed to create a welcoming, vibrant community for families in a thriving neighborhood.
The project will consist of two high-rise buildings offering 400 new homes designed for San Franciscans, including those who have been displaced by past redevelopment actions. These homes will be available to families who earn 30% to approximately 95% of the area’s median income. A portion of the homes will be set aside for families with direct experiences of homelessness who are referred through San Francisco’s Department of Homelessness and Supportive Housing. Residents will have access to a robust services package and a host of amenities, including community green spaces.
Pending financing availability, Phase I of the development—165 apartments—will begin construction in early 2027 and leasing in 2029, while Phase II—approximately 235 apartments—will begin construction in 2028 and leasing in 2030.
Creating a Community, Not Just Buildings
MB4E is about more than just providing homes—it’s about creating a community where families can grow, connect, and thrive. Mission Bay is home to the state-of-the-art UCSF medical campus and sporting and entertainment venues where the Bay Area’s excellence is on full display. Future residents will have easy access to public transit, parks, services, and places of employment. The MB4E team brings extensive experience in designing communities that bring out the best in their surrounding neighborhoods. MB4E will be developed to maximize impact and leverage community resources to create a place where San Franciscans can be proud to call home.
Procurement Opportunities
Procurement Opportunities
QUESTIONS?
Contact Mick Penn mpenn@swinerton.com
Swinerton is an Equal Employment Opportunity, Minority, Women, Disability and Veteran Employer.
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Paving
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Landscaping
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Personnel Hoist
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Tower Crane
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Concrete
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Metal Stairs
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Gypsum Board/Framing
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Facade Maintenance
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Elevator
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Shoring
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Surveying
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Structural Steel & Misc. Iron
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Roofing & Waterproofing
UPCOMING BIDDING OPPORTUNITIES
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Final Cleaning
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Finish Carpentry
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Architectural Woodwork
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Insulation/Fireproofing
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Joint Sealants
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Ceramic Tile
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Acoustical Ceiling
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Painting
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Specialities (bath accessories, fire extinguisher, etc)
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Mailboxes
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Signage
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Window Treatments
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Sheet Metal/Flashing
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Doors, Frames & Hardware
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Coiling Doors
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Flooring
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Appliances
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Casework
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Countertops
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Trash Chutes
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Utilities
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Mechanical
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Electrical
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Plumbing
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Deep Foundations
Procurement Timeline
2025
2026
2027
2028
2029
2030
Bid Package One: Q1 2025 May - June
Bid Package Two: Q3 2025 August - Sept
Phase I Construction Start: Q1 2027
Phase II Construction Start: Q1 2028
Phase I Construction Complete: Q2 2029
Phase II Construction Complete: Q3 2030
The Mission Bay Block 4 East (MB4E) Partnership
Building Community-Based Affordable Housing
Curtis Development & Bayview Senior Services
Curtis Development, a real estate developer with a significant track record of impactful affordable housing in San Francisco, has joined forces with Bayview Senior Services, a longstanding institution that has served the
Bayview and Hunters Point communities since 1971. These mission-driven organizations have formed an exciting partnership to create new affordable housing in Mission Bay. By leveraging Curtis Development’s expertise in
mixed-use, mixed-income, and affordable housing development alongside Bayview Senior Services’ deep commitment to the community, they bring together a dynamic team with cultural competence, high-rise construction experience, and compassionate management.
Curtis Development (CD)
Curtis Development fosters community by focusing on efficient, practical, and thoughtful solutions that cater to families from diverse backgrounds and income levels. With decades of experience, Curtis Development collaborates closely with local officials, design professionals, and community members to ensure each project addresses the critical need for stable, affordable, and supportive housing.
Bayview Senior Services (BSS)
Bayview Senior Services has been dedicated to supporting local families and seniors, including those with disabilities, for over 50 years, helping them age in place with dignity and respect. Their expertise in providing housing, healthcare, food security, and financial support will be vital for the residents of the new development.
MB4E aims to assist Certificate of Preference Holders by offering financial training, application assistance, and housing counseling to families displaced by previous actions of the San Francisco Redevelopment Agency. The development team is committed to conducting extensive outreach and support for those households to ensure that those seeking the housing opportunities MB4E provides and who qualify to live at the property receive the resources needed to establish their homes at MB4E, where they and their families can thrive.
