Antonia Quanstrom - CalBRE#01313450
(925) 934-3422


Antonia Quanstrom has been a very active, full-time realtor in the East Bay for 12 years and is currently ranked in the top 1% of all realtors in Contra Costa County.  As a Walnut Creek native, she specializes in Walnut Creek and the surrounding cities.  Antonia grew up in a “real estate” family:  Her mother was a Walnut Creek realtor for over 25 years and her father was a developer who built homes in Walnut Creek.  Antonia lives in her childhood home in Walnut Creek that her father built.
Antonia and her partners assist Buyers and Sellers in Walnut Creek and nearby cities. If you need help in an area that Antonia and her team do not service, Antonia will refer you to an excellent realtor in the area you want, so you get the expertise you deserve. In real estate, mistakes can sometimes cost a Buyer or Seller significant amounts of money.  That’s why Antonia’s mission is to represent her clients with an exceptional level of knowledge and skill throughout the entire real estate transaction.  Along with her technical expertise, Antonia commits to giving her clients expert care and service during and after their transaction. Antonia knows that purchasing or selling a home is one of the biggest financial decisions that many clients make and that it can be stressful at times.  That’s why Antonia’s paramount goal in servicing her clients is to treat them as if it were her own transaction.  Details matter and Antonia is an extremely detailed and conscientious realtor. 
Antonia is very proud of the high-level of client satisfaction she has consistently achieved over the years and encourages you to contact her clients regarding the service and expertise she provided them.  Antonia believes that her clients offer the best testimony of the results you can expect when you work with her and her team.  Her clients truly “love” working with Antonia and have been very happy with the results she has helped them achieve. 
Buying or selling a home can be challenging at times and it’s always a journey. Antonia sees her mission as making her clients’ journey as profitable, smooth (and yes, even enjoyable!) as possible.  Thank you for visiting Antonia online.  She hopes to assist you soon.