The Tahbazof Family Foundation

Foundation Board of Directors


Siavash (Sia) Tahbazof

Siavash (Sia) graduated from Oklahoma State University, getting his B.S. in Civil Engineering and thereafter, obtaining his Masters in Geotechnical Engineering. He has over 30 years of experience in the real estate industry as a civil engineer and developer which started when he created his first company that specialized in design, engineering, and architecture in the greater Bay Area. In 2020, he sold this company to his brother-in-law so he could focus more on his own personal development projects.

To this end, he created a family-owned real estate development company that specializes in acquiring, entitling, and building residential mid-rises, predominantly located in San Francisco. His company also purchases and rents commercial properties including industrial, office, and retail spaces throughout the Bay Area.

His early successes were accompanied by invaluable lessons that he would apply over the decades that followed, creating a solid foundation based in unrivaled work ethic. Development is not just about the bottom line for Siavash, he is always looking for a way to give back to his community. To date, Siavash’s rental portfolio consists of 751 residential units, of which 115 are affordable housing units, also known as the Below Market Rate (BMR) units.

In line with this philosophy, in 2019, Siavash proposed to construct a building at 1830 Alemany Boulevard with 50% of the units voluntarily set as Below Market Rate units. Three years later, after going through the San Francisco entitlement process and weathering the obstacles that the Covid-19 pandemic raised, Siavash was able to successfully complete construction at 1830 Alemany with a total of 116 residential units, 58 of which are Below Market Rate units. This project was the first time that a developer voluntarily restricted its own development to permanently provide half of the units as affordable housing, while also being completely self-funded. In addition, Siavash earmarked 5 of the standard residential units to go to a local foster youth program that is a nationally recognized education and employment program, providing housing and case management for transition-age foster youth aged 18 to 25. View 1830 Alemany Opening Video

Siavash recently cofounded Leon Event Hall, a centrally located venue in the city’s Excelsior district, to provide a venue to host non-profits and artists. This hall further strengthens Sia’s ties to the city by providing a space where art and philanthropy can flourish. Read more at https://www.leoneventhall.com.


Sufi Tahbazof Hariri

After earning a B.A. in Communication from the University of San Francisco, followed by a J.D. for the University of Santa Clara School of Law, Sufi serves as the company’s General Counsel, handling litigation, contracts, collections and accounts receivable, overseeing the entitlement process for new developments, and a vast array of legal matters. Like her mother Sami, her business and legal expertise is enriched by her experience having volunteered at Shelter Network in San Mateo and mentored students at A Home Away from Homelessness in San Francisco. This provides insight and perspective that look beyond the balance sheet and legal brief, to values; serving people and contributing to the growth and quality of life of members of the community. She currently serves on the board of John Burton Advocates for Youth and also the Ambassadors for Lucile Packard Children’s Hospital.

Samaneh (Sami) Tahbazof

Sami was raised in Iran and upon moving to San Francisco in 1981, she received her B.A. in Graphic Design from Academy of Arts. She currently serves on the board of Farhang Foundation, a non-profit organization established to celebrate and promote Iranian art and culture for the benefit of the community-at-large. Some of the areas of focus include poetry, literature, music, fine arts, history, philosophy and traditions.

Philanthropic giving has always been at the core of everything Sami does. She feels most fulfilled when helping under-privileged children. Teaching these values to her 2 children, Sami made it a priority to be involved with her community. She was a past member on the Scholarship Committee for the Latinos Unidos, served meals to homeless through Project Homeless Connect in San Francisco, and volunteered weekly with her kids at Shelter Network in Redwood City and San Mateo. For over 8 years, Sami mentored students at A Home Away from Homelessness while also serving as a member of its board, and later as its President. Sami also served on the board for John Burton Advocates for Youth.

Samaneh recently cofounded Leon Event Hall, a newly established philanthropic venue in the city’s Excelsior district, to provide a space where art can flourish, communities unit, and positive change takes root. This new venue stands as a testament to the Tahbazof family’s deep-rooted philanthropy in the Bay Area by providing a space where non-profit organizations can host their events and artists can exhibit their work. Read more at https://www.leoneventhall.com.

Yosef Tahbazof

With a B.S. in Accounting from Santa Clara University, and then a J.D. from the University of California Hastings College of Law, Yosef brings rare business acumen and legal expertise to SST’s diverse business initiatives. From the most complex construction development to a diverse spectrum of special projects, comprehensive financial guidance for a growing development portfolio, assistance with acquisitions and project management on all levels, as well as overseeing the company’s growing residential property management portfolio. Yosef also gives back to the community by serving as a member of the San Francisco Assessment Appeals Board, lending time, expertise and experience. Yosef also gave back to the community by serving as a member of the San Francisco Assessment Appeals Board, lending time, expertise and experience, for over 10 years.

Baha Hariri

Baha received his BA in Economics from the University of California at Berkeley, and a Master’s in Public Policy from the John F. Kennedy School of Government at Harvard. He has over two decades of experience in politics, strategic communications and government relations advising Fortune 500 companies, candidates and community groups on political engagement. He has spent the past 15 years focused on commercial property investment and management, having built SST’s commercial portfolio in the San Francisco Bay Area which includes a diverse mix of office, industrial and retail assets. Baha is also active in non-profit and philanthropical causes, including the Iranian Scholarship Foundation (ISF) that awards academic scholarships to students in need and Jewish Vocational Services (JVS) which helps job-seekers build in demand skills to find good jobs to better their lives.