Antonia Maio Quanstrom
Real Estate Agent (Salesperson)
Walnut Creek - CA

Antonia has been a dedicated Realtor since 2001, establishing herself as one of Walnut Creek’s leading listing agents. Her expertise consistently yields some of the highest dollar-per-square-foot returns for sellers in the area, as reflected in MLS statistics. Additionally, she ranks among the top Realtors in the East Bay.

A Walnut Creek native and a second-generation Realtor, Antonia's connection to real estate runs deep. Growing up, she was influenced by her father, a local real estate developer in the Ygnacio Valley, and her mother, who was also a Realtor serving Walnut Creek and its neighboring communities. Antonia's first two homes were in Concord, and she later returned to her childhood home in Walnut Creek when her mother sought a smaller residence.

Antonia holds degrees in Economics and English from UC Davis, equipping her with a strong foundation in both the business and marketing aspects of real estate.

Before embarking on her real estate career, Antonia worked as a corporate trainer, focusing on sales and management development, as well as instructional design. This background has provided her with valuable skills that have seamlessly transitioned into her real estate practice.

Her client-centric philosophy, rooted in the principle of treating others as one would wish to be treated, has guided her since the beginning of her sales career in 1985. Antonia prioritizes her clients' best interests, striving to deliver the level of service and results that she would expect for herself and her family.

Antonia is highly regarded by her peers, who frequently commend her professionalism, ethical standards, and commitment to fairness and honesty. Her collaborative approach fosters positive relationships with other Realtors, which can be a significant advantage for her clients.

To gain insight into Antonia's service and work ethic, prospective clients are encouraged to review her Client Testimonials and References. She believes that direct feedback from past and present clients is the most effective way to assess her expertise.

Outside of her professional endeavors, Antonia cherishes her time with her two children, Jeff and Becca, and her new grandson, all of whom reside in Walnut Creek. In her leisure time, she enjoys gardening, hiking, exploring various wine country regions, playing golf, and engaging in outdoor activities, finding joy in simply being in nature.