Team Antonia Quanstrom

Team Antonia Quanstrom Along with her supportive team, she is passionate about providing expert care and best results to all clients.

Expert Care & Best Results from Team Antonia Quanstrom
Walnut Creek Native & Area Specialist
Contra Costa County's top 1/2% of Realtors
CalBRE # 01313450
Coldwell Banker Antonia Quanstrom has been one of the most successful and productive realtors in the East Bay for more than 20 years, ranking in the top .3% of all realtors in Contra Costa County. As a Walnut Creek native, Antonia Quanstrom brings

decades of personal and professional experience to the table. You could say real estate “runs in the family”: Antonia’s father was a local real estate developer and her mother was a Walnut Creek Realtor. Her parents were an influential part of her growth into a Realtor who provides her clients honesty, area expertise and top notch service. Antonia eventually raised her own family in the very home that she grew up in and that her father built. As a UC Davis Economics graduate, Antonia is well versed in how to get top dollar for her clients’ listings. Many past clients can attest to Antonia’s work ethic and trained eye in getting the very best offer for her clients – no wonder she is the #1 Walnut Creek listing agent when it comes to getting her sellers the Highest Dollar per Square Foot!

“I believe in doing the right thing for my clients, whether it’s giving input on a remodel, deciding on a purchase or pricing a home for sale. Ultimately, if my client is happy, I am happy.” Antonia’s repeat and referral-based business attests that her honest and down-to-earth approach is a true value to clients. It is a testament to Antonia’s consultative style when her clients make smart investments for their future and maximize their profits! Her breadth of knowledge and attention to detail are evident by her professional success, but Antonia says it is her clients who make her job the most rewarding. Years later, they will still call to ask for remodel advice or to share their latest milestone. Antonia’s devotion to helping others find their home is not just a professional passion. She supports a cause close to her heart, a local organization that give aid and shelter to the homeless. When she is not previewing properties and advising clients, Antonia loves to spend her time with her family, gardening at her childhood home, or outdoors hiking in the Walnut Creek open space.

We salute all who have served and remember those who have fallen. #01313450
05/25/2026

We salute all who have served and remember those who have fallen.

#01313450

NEW PRICE AND OPEN THIS WEEKEND! This home just glows! And now with an improved price of $1,299,000, you won't want to m...
05/01/2026

NEW PRICE AND OPEN THIS WEEKEND! This home just glows! And now with an improved price of $1,299,000, you won't want to miss it. Come see this beautifully updated home with a stunning backyard, close to downtown. We'll be open both Sat/Sun, 5/2 & 5/3, from 1-4 pm. 1331 Springbrook Rd, Walnut Creek.

#01313450

OPEN SUNDAY 4/26 from 1-4 PM - Come see us at 4849 Highlands Way, Antioch. This is a beautiful home with a tranquil, low...
04/25/2026

OPEN SUNDAY 4/26 from 1-4 PM - Come see us at 4849 Highlands Way, Antioch. This is a beautiful home with a tranquil, low-maintenance backyard complete with calming waterfall, warming gas firepit, entertainment spaces and plenty of foliage - including peach, lemon and grapefruit trees. Inside you'll find a fresh and well-maintained home with energy-saving upgrades keeping the home quiet and comfortable year-round. A great value - listed at just $599,000. Don't miss out!

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OPEN SAT/SUN 4/25 & 26 from 1-4 pm: If you love to entertain, this is the place for you! An amazing backyard oasis with ...
04/24/2026

OPEN SAT/SUN 4/25 & 26 from 1-4 pm: If you love to entertain, this is the place for you! An amazing backyard oasis with pool, spa, lawn and gardens awaits, along with an exquisite, sleek mid-century interior. The European-style kitchen will delight, as will 2 living areas - one with vaulted ceilings and access to the yard. Even the garage is set up for a party - you must see it! 1331 Springbrook Rd, Walnut Creek, listed for $1,349,000.

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OPEN SAT 4/18 from 1-4 and SUN 4/19 from 12-3: Original owners have kept this lovely home well maintained. You'll deligh...
04/18/2026

OPEN SAT 4/18 from 1-4 and SUN 4/19 from 12-3: Original owners have kept this lovely home well maintained. You'll delight in the finished backyard, perfect for relaxing by the firepit or waterfall. Some features include freshly painted inside, with some updated flooring, a newer heat pump system that's tied to solar (energy savings!), a 3-car garage and more. Close to schools, shopping and Hwy 4 access. Don't miss out!

#01313450

OPEN HOUSE! Saturday/Sunday 4/18 and 19 from 1-4 pm. Come check out this mid-century modern home with sleek finishes, a ...
04/18/2026

OPEN HOUSE! Saturday/Sunday 4/18 and 19 from 1-4 pm. Come check out this mid-century modern home with sleek finishes, a European-style kitchen and a backyard oasis, with pool, spa and plenty of areas to entertain and relax. There's two living rooms, and the primary suite is a private sanctuary away from the rest of the home. Beautifully maintained - and there's owned solar. Located close to downtown, top WC schools and freeway access. Don't miss out!

#01313450

OPEN THURSDAY 4/9 from 10 am - 2 pm NEW LISTING in the Country Hills area of Antioch. You will love all the amenities in...
04/09/2026

OPEN THURSDAY 4/9 from 10 am - 2 pm NEW LISTING in the Country Hills area of Antioch. You will love all the amenities in this lovingly-maintained home by the original owners. The solar system is tied to the energy-efficient heat pump (installed 2024) and with dual pane windows and sliders, you can live comfortably year-round. And outside, you will love the pavers, gas firepit and waterfall feature, along with mature fruit trees and foliage providing tranquil ambiance. We'll be open this weekend, Sat/Sun 4/11 & 4/12 from 1-4 pm. Come see us!

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SOLD in just a few short days $122,000 over the list price! We are thrilled for our sellers and just as thrilled for th...
03/12/2026

SOLD in just a few short days $122,000 over the list price! We are thrilled for our sellers and just as thrilled for the new owners who get to live in this gorgeous home.

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OPEN Tuesday 2/24/26 from 10 and 2 pm: The kitchen of your dreams awaits in this 4 bed, 2 ba home in the Parkmead neighb...
02/24/2026

OPEN Tuesday 2/24/26 from 10 and 2 pm: The kitchen of your dreams awaits in this 4 bed, 2 ba home in the Parkmead neighborhood of Walnut Creek. So much to love in this designer home, from the matte oak flooring to the updated bathrooms, 2 living areas, sunny formal dining room to two lovely outdoor living spaces. Close to downtown and top-tier schools. Come see us Tuesday!

#01313450

NEW! Come see this gem of a home in the desirable Parkmead area of Walnut Creek. You'll love the "crown jewel" of the ho...
02/21/2026

NEW! Come see this gem of a home in the desirable Parkmead area of Walnut Creek. You'll love the "crown jewel" of the home - the stunning custom kitchen in the center of the home, flanked by 2 living rooms and a sun-filled formal dining room. The primary suite is located in a separate wing from the other 3 bedrooms. Two outdoor entertainment spaces provide flexibility and fun. Located near downtown, top schools and is commuter-friendly locale. Listed at $1,478,000
Open Tuesday, 2/24/26 from 10-2 pm - call Antonia @ (925) 407-6299 for more information.

#01313450

Address

COLDWELL BANKER REALTY 1981 N. Broadway Suite 100
Walnut Creek, CA
94596

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