Value investing, local focus

Since 1978 South Bay Development Company has acquired, built, developed, and managed commercial property in Silicon Valley. From partnerships with institutional investors to our own accounts, we have expertise in all phases of the development process. Commercial property is our business and our passion.

What We Do

We keep pace with the spirit of Silicon Valley business through solid development and acquisition strategy. Our focus on the core real estate disciplines of development, acquisition and management let us quickly adjust to economic fluctuations, maximizing value and investment potential. We’ve worked hard for our position, growing and sustaining profitability in the shifting climate of Silicon Valley.


With over 35 million square feet, hundreds of acres of land and dozens of awards, weve gained a reputation for success in both speculative and build-to-suit spaces. For office, and industrial, we offer full integration at every phase to ensure on-schedule projects, with on-budget bottom lines. We work with communities to expedite approval and entitlements, and maintain high community standards.


In addition to development, our strategic revitalization and repositioning projects create lucrative new opportunities for our clients. From value-add, to leased investments, our specialty in repositioning assets has maximized the potential of millions of square feet. We create value through use changes, substantial property renovations and general rehabilitations.


Great relationships are built. Over the last quarter century, weve added value for tenants, brokers, contractors, and consultants with every transaction. Keeping a strong geographic focus has made us a leader in office and industrial in Silicon Valley. Advanced technology, integrated reporting, and streamlined systems means we track, report, and offer efficient solutions that meet our clients’ needs—and exceed their expectations.

Who We Are

Integrity and professionalism are just the beginning. Our team is talented, experienced, and recognized among the industry’s foremost authorities for the value and opportunity we deliver to our clients—and  the Silicon Valley economy. Leveraging experience and well-established relationships with investors, brokers, tenants, local government, and bankers ensures efficient and comprehensive processes for our clients, tenants and partners.

Jim Mair
Scott Trobbe
Mark Regoli
David Andris
Brett Kondrick
Kasey Harnish
Electra McBurnie
Nancy Zaro
Jim Mair

Jim Mair has led South Bay Development since its inception in 1978. Over 35 million square feet later he still oversees strategy and management, building the company into one of Northern California’s most successful real estate ventures. He participates in many industry, community, and charitable associations throughout The Bay.

BA, Business Administration University of the Pacific
MA, Business Administration, Santa Clara University.

Scott Trobbe

Scott Trobbe has been a partner with South Bay Development Company for over 33 years. He has been responsible for implementing high level strategies across all levels of the Company’s investments including large entitlement projects, extensive development opportunities and major lease negotiations. He has been involved with over $2 Billion dollars of various real estate investments and has established significant relationships with Capital partners, the Lending community and multiple Silicon Valley Governments.

Prior to joining Jim Mair, he was the Silicon Valley Regional Real Estate Manager for Union Bank with a loan Portfolio of over $750 Million dollars.

Scott has a Bachelor Degree in Economics from Stanford University.

Mark Regoli

Mark Regoli brings over 20 years experience to the company and is responsible for originating and negotiating real estate investments, ranging from renovation and rehabilitation of existing buildings to raw land. Since 1995, he has completed over 9 million square feet of real estate investments with a value of over $2 Billion.

Board of Directors, NAIOP, Silicon Valley Chapter
BA, Business Administration, San Jose State University
MA, Business Administration, San Jose State University

David Andris

Bringing to the company a broad industry perspective through 27 years in real estate and property leasing, David Andris is responsible for marketing, sales, and acquisitions. He has managed over four million square feet of commercial space since coming to South Bay.

Real Property Administrator Designation, BOMI International
BA, Business Management, San Jose State University
MA, Finance, San Jose State University

Brett Kondrick

Brett Kondrick joined South Bay in 2015. He specializes in supporting financial relationships with South Bay's various institutional investors, joint-venture partners and lenders, and is responsible for financial and accounting functions for The Firm. He actively supports several non-profits serving the military community.

BS, Business University of San Diego where he was a Woodruff Scholar.
Member, NAIOP, Silicon Valley Chapter
Co-founder, Real Estate Undergraduate Mentorship Program, University of San Diego

Kasey Harnish

Coming to South Bay Development from South Bay Construction in 2013, Kasey Harnish is responsible for property management, leasing, construction management, and property marketing and financial analysis. He enjoys sports and is a longtime baseball coach in his community.

BA, Economics, University of Puget Sound
MS, Information Technology and Real Estate and Construction Management, University of Denver 2005
California Real Estate License

Electra McBurnie

Electra McBurnie manages the leasing of 400,000 square feet of property known as Mission City Center. She comes to South Bay with extensive experience in Silicon Valley commercial real estate and is responsible for marketing, lease negotiation, property management direction and capital improvement projects.

BS Biology, University of California, San Diego
MBA, Saint Mary's College of California
California Real Estate License
CCIM Designation

Nancy Zaro

Nancy Zaro’s 30 years of experience in commercial real estate includes the founding and running of a property management company for ten years, which led her to South Bay Development. She is responsible for leasing, tenant improvements and the management of multi-tenant industrial/R&D properties located throughout Silicon Valley.

BS, San Jose State
California Brokers Real Estate License
LEED Green Associate
RPA and FMA designations
Active: Commercial Real Estate Women (CREW) Silicon Valley
Active: Building Owner and Managers Association (BOMA) San Jose

Our Partners
South Bay Development Company has the ability and experience to reposition and deliver projects that successfully meet the needs of both tenants and investors.
Large Commercial Bank
  • Bloom Energy
  • Spaces
  • Calix
  • Intel Corporation
  • AMD
  • Comerica Bank
  • Applied Materials, Inc.
  • Harris Corporation
  • Cisco Systems, Inc.
  • Hasbro, Inc.
  • NEC Corporation
  • General Electric Company
  • Hello Direct Inc.
  • Lam Research Corporation
  • Hewlett-Packard
  • Synaptics
  • Boston Scientific
  • Netflix
  • Apple Computer, Inc.
  • Intergraph Corporation
  • TriQuint
  • Aeris
  • LSI Logic Corporation
  • Nortel Networks
  • Cohenent
  • Xerox Corporation
  • National Instruments
  • World PAC
  • JDS Uniphase Corporation
  • Intermolecular
  • View Glass
  • Kaiser Permante
  • New York Life Insurance Company
  • Western Digital Corporation
  • Panasonic Corporation of North America
  • California State Automobile Association
  • Adobe Systems Incorporated (Macromedia)
  • Computer Associates International, Inc.
  • General Dynamics Corporation
  • Roku
South Bay Development Company provides comprehensive involvement in every step of the process to help facilitate smoother transactions and they remain focused on creating value and a positive return on investment.
Private Equity Fund