Cornelia Siem in San Diego, CA

Contact Agent

Willis Allen Real Estate
[email protected]


Cornelia has built her real estate career on professional integrity and service, market expertise, and by developing trusting relationships with both colleagues and clients. As a dedicated real estate advisor, Cornelia delivers the highest level of professionalism through her ethical business practices, organized processes, and her warm demeanor towards all she encounters.

Cornelia began her career in fine art at Sotheby’s Impressionist & Modern Department in London, learning their unprecedented white-glove service. After three years abroad she moved back to the United States and continued her career managing client relations for BlackRock, the world’s leading asset manager.

She draws upon her previous work and life experiences to bring unique perspectives that help serve her real estate client’s needs.

Cornelia settled in San Diego after living in over 10 cities and 3 countries, and she is thrilled to help others relocate to “America’s Finest City”. In addition to facilitating smooth relocations, she excels in working with young families, first time buyers, and investors with specific budget goals.

Cornelia is passionate about giving back to her community. She serves as the Treasurer on the board of Friends of Downtown, a 100% volunteer registered 501(c)3 non-profit organization committed to the enhancement of San Diego’s downtown community through scholarships, community service, and education. Additionally, Cornelia volunteers with ElderHelp making friendly visits to a local senior weekly. In her free time, Cornelia is an avid golfer and member of the Torrey Pines Women’s Golf Club.

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Cornelia Siem

LIC.# 02113179