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Helen Diller Civic Center Playgrounds with children playing

At Prometheus, We Believe in Good Living for the Greater Good

Helen Diller Playground at Dolores Park filled with families
Helen Diller Playground at Dolores Park filled with families

Our Purpose

We create places, homes and neighborhoods where people belong;


We curate every detail of the experience and every inch of the design;


We give our time, efforts and on average over thirty percent of our cash flow to bring positive change locally and beyond;


Our History: I Am Home

In 1965, our founder, Sanford Diller, saw an opportunity to invest in the future of Silicon Valley. Inspired by our namesake, the Greek titan who symbolized innovation and foresight, he built Prometheus Real Estate Group, a company focused on an entrepreneurial spirit.

Sanford had the vision to transform apartment living and did so with care and attention applied to every detail. From site selection and design to service and innovation, no detail was considered too small.
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He also saw an opportunity to change the impersonal nature of the apartment industry. Focusing on connecting with others in a Neighborly way is one of the foundational elements of our company’s culture. This sense of belonging is in everything we do, as we bring I AM HOME and I AM HOME AT WORK to life. 

This culture of excellence and success enabled Prometheus and the Helen Diller Family Foundations to give back. Sanford set the example and invested in others to carry the torch forward and continues to light our way.
Sanford spoke often about his deeply held family belief:

“There’s no one way to make your way in the world. Everyone’s path is their own. But we all have a responsibility to give back. It’s an obligation, a duty and a privilege, not a choice.”

We continue to honor that philosophy today.

Porch: Nurturing Our Neighborhoods

The Promethean Outreach and Community Help program (Porch) empowers Prometheans to give back in their communities and beyond. Nearly half of our Prometheans volunteer every year for the causes they feel passionately about.

As an organization, we have adopted non-profits in every market in which we operate. With 14+ partnerships in place, we look forward to continuing to grow and expand our efforts.

Certified B Corporation

As a B Corporation, we join a group of companies that believe in business as a force of good in the world. B Corporation certification requires meeting far-reaching standards related to the well-being of employees, customers, suppliers, communities and the environment. The B Corporation certification re-affirms the principles on which we were founded and the deeply held philosophies of Sanford and Helen Diller.

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Our Prometheans

Being a Promethean is more than a job, you are part of a family. We challenge conventional thinking and embrace ideas that change perspectives. We continue to build on the foundation of our founder by giving our time to bring positive change locally and beyond. We are dedicated to our Promethean's growth and encourage education through tuition reimbursement, scholarships, and promoting from within as well as other meaningful benefits. Come grow with us.
Career opportunities


We have a long history of award-winning approaches to what we do, receiving over 100 awards for design and excellence.
  • 2022 Best for the World-Community, B Labs Global 
  • Best Places to Work - 2021, 2020, '18, '17, '16, '15, '14, San Francisco Business Times/Silicon Valley Business Journal
  • 100 Best Places To Work In The US - 2017, Fortune Magazine
  • Property Management Company of the Year - 2018, '15, '13, '11, NAHB Pillars of the Industry
  • 100 Best Workplaces for Women - 2016-17, Fortune Magazine

Our Portfolio

Prometheus is the largest private owner of multifamily properties in the San Francisco Bay Area. We take that responsibility seriously.
2,600Apartments in Pipeline
13,000Apartments in Portfolio