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Meet Deirdre O'Brien

Deirdre O'Brien Greenbrae, CA Real Estate Agent Headshot

Deirdre O'Brien

Real Estate Agent

Get to Know Me

Deirdre O'Brien is more than just a real estate agent; she's a dedicated advocate for the captivating communities of Marin County, a place she's proud to call home. Growing up in Mill Valley, CA, and now residing in Novato, Deirdre's personal ties to the area fuel her passion for helping others find their own slice of paradise in the Bay Area.

As a verified Top Agent Network Member and a consistent top 3% performer among all Marin County NAR, Deirdre brings unparalleled local expertise and market knowledge to every transaction. Her impressive track record speaks volumes about her dedication to excellence and her ability to deliver outstanding results for her clients.
 
Beyond her professional achievements, when Deirdre is not skillfully navigating the real estate landscape, you can find her exploring picturesque hiking trails, biking on Mt Tam, or taking cycle classes at her local gym. This genuine love for the outdoors and health reflects her grounded, energetic, and approachable nature, making her not just an agent but a trusted friend to her clients. Deirdre is also passionate about giving back to the community and is dedicated to the well-being of our planet and all its species.
 
With a warm and professional demeanor, Deirdre O'Brien is dedicated to serving the real estate needs of the community she holds dear. Whether it's finding the perfect home or securing the best deal, Deirdre's clients can rest assured that they have a knowledgeable, passionate, and caring advocate by their side.
What Our Clients Say About Us

David and Deirdre have been a pleasure to work with since the get-go. They have been graceful with us - it was our first house, so we had a LOT of questions and needed a LOT of explanation. Throughout this whole process, not only they were extremely available and responsive, but they always went above and beyond to ensure we were set up for success! They negotiated our offer with patience, and always mad...

— Pamela B.

What Our Clients Say About Us

My husband and I had an exceptional experience working with Deirdre and David to purchase our first home. From the very beginning, Deirdre invested time in truly understanding our needs, patiently explaining the entire home-buying process, and preparing us for potential hurdles in the closing process. Both she and David were incredibly informative and transparent, offering honest insights into the pros a...

— Olga K.

What Our Clients Say About Us

We were consistently impressed by their dedication, from the late nights spent working on contracts and viewing properties to the valuable advice and perspectives they both provided. It was incredibly reassuring to know we had such a strong team in our corner. Deirdre was incredibly patient and dedicated when showing us homes. She really listened to our needs and, in the end, helped us find the perfect p...

— Isabela D.

What Our Clients Say About Us

Deirdre and David O'Brien were a dream to work with. Not only are they super knowledgable about properties in Marin county, the time they spent with us and the warmth they showed us let us know they really cared that we find the right house for us! We met with several other realtors, and when we met Deirdre, We knew she was who we wanted to work with! We are so happy with our new home thanks to both Deir...

— Renee M.

What Our Clients Say About Us

Deirdre and David are very knowledgeable. They jumped right in to help me when I was overwhelmed . They were very hands on and helped to navigate , book and organize all the contractors. They made this home sale so seamless. This is the second time that I have worked with Deidre and David. And my next home, I will definitely reach out to them to guide me.

— Jenifer M.

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We’re Here to Help

At Team O’Brien, real estate isn’t just about buying and selling homes—it’s about helping you make the right move with confidence. Whether you’re buying, selling, or investing, we take the time to understand your goals and provide tailored solutions for success.