Costanza GZ & Associates Leverages Extensive Local Knowledge to Guide Your Home Sale and Purchase
With 11+ Years of Experience and 500+ Homes Sold, Costanza is a Top Real Estate Broker Helping First Time Home Buyers and Seasoned Investors Equally. Whether You Are Buying Your Dream Home or You Want To Sell Your Home For More, We Are Here to Assist.
COSTANZA GZ & ASSOCIATES
We are a team of Top Agents, here 24/7 to assist you with your home buying and selling needs from start to finish.
- $444,387,679Value of Real Estate Sold
- 536Number of Properties Sold
OUR AGENTS

Originally from Rome, Italy, Costanza GZ now calls California home, bringing her global perspective and a strong academic background with a degree from UC Berkeley and an MBA from UCLA. Ranked among the top 1% of real estate agents in the U.S. by Realtrends, Costanza combines in-depth industry knowledge with a client-focused approach to make your real estate experience seamless and stress-free.
With extensive local expertise, superior negotiation skills, and a commitment to understanding her clients' unique needs, Costanza is dedicated to helping you navigate any real estate transaction—whether you're buying or selling luxury homes, beachfront properties, or any other real estate. Outside of real estate, she enjoys traveling, spending time at the beach, running, and playing tennis.
OUR REVIEWS
Kathy Adriance
Ann Rankin
刘Paul
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WHAT'S YOUR HOME WORTH?
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EXPLORE OUR FEATURED AREAS
By Your Side Every Step of the Way
At Costanza GZ & Associates, we are united in our commitment to excellence and leadership in real estate. Our shared mission is to provide unparalleled service to our clients, always driven by integrity, collaboration, and a dedication to achieving your goals.
Broker Associate | License ID: 01941438
+1(562) 221-4527 | costanza@costanzagz.com