Agent Photo
Mary Jo McCarthy
  • Lic.# 01354295
Golden Gate Sotheby's International Realty
Golden Gate Sotheby's International Realty home
Real Estate Agent

Mary Jo has consistently been recognized by Golden Gate Sotheby’s International Realty as a “Top Producer.” For over 20 years, she has specialized in selling luxury real estate throughout the Silicon Valley with an emphasis in Menlo Park, Atherton, Palo Alto, Los Altos and the surrounding communities.

Mary Jo is customer driven and is focused on the specific needs of each client. Mary Jo’s deep market knowledge, tenacity and commitment to her clients have been instrumental to her clients’ success in either buying or selling their homes. These qualities have enabled Mary Jo to expertly advise her clients in multiple offer situations as well as buying or selling “off-MLS.”

As a seasoned Realtor with a strong professional network, she works collaboratively with her colleagues to evaluate the market in order to provide valuable data, insights and resources to her clients. Understanding her clients’ unique objectives and making them a reality is Mary Jo’s focus.

Mary Jo is originally from Green Bay, Wisconsin and then moved to Minneapolis, Minnesota where she began a 16-year career with Xerox Corporation in sales, management and worldwide marketing. She relocated to the Silicon Valley in 1995 where she and her husband raised two children and now have a golden retriever puppy, Bixby. Mary Jo continues to enjoy exploring northern California, especially skiing and hiking in Tahoe as well as spending time in Carmel.

Mary Jo is committed to NewStory, and contributes a portion of her commissions to support the development of communities and building of homes for those in need.


“Mary Jo listened to my needs, and began to quickly offer me options that were in my price range and suited my lifestyle. She knows the area like the back of her hand!”

— Ranjini

“She provides close personal support to buyers or sellers to guide them through the complicated process of real estate transactions, successfully negotiating with other agents to obtain the best possible results at closing.”

— Linda

“Mary Jo also provided detailed analytics prior to each bid. She would painstakingly assist us in our due diligence. She has the client’s financial interest as top priority. We found her advice on bidding strategy very valuable.”

- Joy and Ivan

“In addition to our successes in the real estate transactions, we owe Mary Jo a debt of gratitude for protecting us from our own (potentially costly) mistakes.”

- Eswar

“By the time we had transacted two properties using Mary Jo, I would say that our trust in her as a partner was better than we’ve experienced with any agent over 20 years. Adding to her energy, Mary Jo is extraordinarily honest, direct, detailed, meticulous, well-trained, well-supported, and she is liked by everyone she deals with. We recommend her highly.”

- Doug

“Most importantly for us, when you work with Mary Jo, you never feel pressured about the process. She will give you her best advice, but always listens to and executes on your wishes.”

- Tracy and Caz

“She has high ethical standards, speaks with great honesty and does what is right for the customer and her company. Business and life is approached with a positive attitude that carries over to others. These same skills that made her a success at Xerox has also made her successful in real estate.”

- Mary

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Mary Jo McCarthy

  • Lic.# 01354295
640 Oak Grove Avenue
Menlo Park, California, San Mateo County, 94025