Costanza Genoese Zerbi

Costanza Genoese Zerbi

Associate Broker at eXp of Greater Los Angeles Inc
Broker: 01941438
  •   5   (64 reviews)

Costanza's sales performance at a glance

See how Costanza has performed in the last 12 months on RateMyAgent*

26
Reviews
6
Properties for sale
30
Sold properties
$1.2m
Average sale price
$34.3m
Total sales value

*Includes all properties sold (last 12 months) where the agent was a part of the transaction and published on ratemyagent.com. It may not be complete and can exclude off-market, private sales and undisclosed pricing and sold dates. Contact agent for full sales history.

  • top20badge
  • priceExpertbadge
  • aotybadge
  • top20badge

    Recognized for being in the Top 20% for customer satisfaction.

  • priceExpertbadge

    Consistently meets client expectations for property purchase price.

  • aotybadge

    Recognized for going above & beyond for their clients.

Costanza's customer service awards

See what RateMyAgent awards Costanza has won

  • County WinnerLos Angeles County
  • City WinnerLong Beach

About Costanza

Costanza Genoese Zerbi | #1 Verified Solo Real Estate Agent in Long Beach The Gold Standard in Long Beach Real Estate When results matter, verification is everything. Costanza Genoese Zerbi is the #1 Solo Real Estate Agent in Long Beach, California, as verified by RealTrends—the industry’s most trusted data-backed ranking. Recognized in the top 1% of all real estate agents nationwide, Costanza provides a level of strategy and negotiation expertise that sets the benchmark for the Southern California market. As a Broker Associate at eXp Realty (DRE #01941438), Costanza has built a reputation for transforming complex real estate goals into seamless realities. Her approach is built on providing the high-level financial and market intelligence that today’s discerning buyers and sellers demand. An Elite Educational & Global Foundation Costanza’s competitive edge is rooted in her elite academic background. Originally from Rome, Italy, she moved to California to pursue excellence at the highest levels. She earned her undergraduate degree with High Honors from UC Berkeley and holds a Master of Business Administration (MBA) from UCLA. This rare combination of a world-class business education and a global perspective allows Costanza to navigate the market with a sophisticated, analytical lens. She treats every property as a significant financial asset, applying data-driven strategies to pricing, marketing, and investment analysis that average agents cannot replicate. Hyper-Local Expertise Across Southern California While Costanza is the leading solo agent in Long Beach, her expertise extends across the most coveted coastal communities in Southern California. She provides specialized neighborhood insights for: Long Beach: Including the prestigious enclaves of Naples, Belmont Shore, Belmont Heights, Alamitos Heights, Bixby Knolls, Bluff Park, El Dorado Park, and Lakewood. The South Bay: Expert representation in Redondo Beach, Torrance, Manhattan Beach, Hermosa Beach, and the Palos Verdes Peninsula. Greater Los Angeles: Serving a diverse clientele looking for high-value investments and luxury residences across the region. A Strategy for Every Client Whether you are a first-time homebuyer, a move-up seller, or a seasoned investor, Costanza delivers a "client-first" experience backed by verified results. For Sellers: Costanza utilizes "Standout Marketing" strategies, combining architectural photography, cinematic video, and targeted digital advertising to ensure your home is positioned as a premier listing. Her Strategic Pricing model is designed to drive competition and net the highest return. For Buyers: Her Expert Negotiation skills and extensive local network often give her clients access to off-market opportunities and the "inside track" on new listings. For Investors: With her MBA background, Costanza speaks the language of ROI, CAP rates, and market cycles, providing the data necessary for confident decision-making. Verified Trust & Community Real estate is a commitment to the community Costanza serves. Outside of her record-breaking sales, she is an active resident of the area she represents. You will often find her enjoying the Long Beach coastline, running, playing tennis, or traveling—experiences that keep her connected to the vibrant lifestyle her clients are looking to buy into. Choosing the right agent is the most important variable in your real estate journey. When you work with Costanza Genoese Zerbi, you are partnering with the verified #1 individual leader in the market. Contact Costanza Genoese Zerbi Today Broker Associate | eXp Realty License: #01941438 Ranking: #1 Solo Agent in Long Beach (RealTrends Verified) Education: UCLA MBA | UC Berkeley (High Honors) Specialties: Luxury Listings, Residential Sales, Investment Properties.

Languages spoken

English, Italian

Social profiles

Costanza's reviews

  5  
Costanza has 64 reviewsacross 36 different locations, showing 6.
Review Costanza
Buyer review
Honest, Responsive, and Wonderful to Work With
21 days ago
Honest, Responsive, and Wonderful to Work With

We had a wonderful experience working with our property agent during the home buying process. She was never pushy and always gave us the space and confidence to make the right decisions for our family. Her communication was exceptional — always quick to respond, transparent, and forthright throughout the entire process. Most importantly, she truly understood our needs and preferences, which made the experience smooth and stress-free. We really appreciated her professionalism, honesty, and dedication, and would highly recommend her to anyone looking to buy a home.

Seller review
Just call her, she's the best
about 1 month ago
Just call her, she's the best

If you’re looking for an agent who actually fights for you and is completely honest throughout the process, call Costanza. We just finished a move that should have been incredibly stressful, selling one house and buying another at the exact same time, but Costanza made it feel seamless. She stayed on top of every detail, even when other parties in the transaction were 'MIA.' She treated our home sale like it was her own, protecting our equity and making sure we hit our deadlines. She is a true pro, an amazing negotiator, and just a great person to have your back in complex situations like this. We are officially settled in our dream home and couldn't be happier!! Thank you again Costanza!!

Seller review
A wonderful experience!
3 months ago
A wonderful experience!

Using her market insights, Costanza was great at steering us through the selling process. She kept us informed at every step and was always available to take our calls and answer our questions. She was able to see past minor setbacks that had me nervous and get us back on course. In the end we sold for full asking price in less than two weeks!

Seller review
Costanza provided professional input and direction which resulted in the best price for our home.
3 months ago
Costanza provided professional input and direction which resulted in the best price for our home.

We worked with Costanza for over a year due to unforeseen circumstances regarding my husband’s hip surgery. As circumstances changed in that year she kept her word and followed through with our original agreement on terms and fees. She provided services that helped us obtain the best price possible for our home. She provided an expert inspector prior to putting the house on the market so that we could show the house at its best. Our home sold quickly. We would certainly call upon her again in the future.

Seller review
Constanza is an incredible professional. Highly recommended!"
3 months ago
Constanza is an incredible professional. Highly recommended!"

Constanza is an incredible professional. She listed our home and found a buyer within a week! When the sale hit some unexpected hurdles, her wisdom and hard work saved the deal. We felt supported every step of the way and wouldn't dream of using another agent. Highly recommended!"

Seller review
 Went above and beyond for us
3 months ago
Went above and beyond for us

Costanza has been an absolute pleasure to work with. After our house sat on the market for weeks, she took over and had it pending in a week in her expertise is only matched by her dedication. She went as far as providing a spare once I realized I had left mine in my new home 6 hours away. Throughout the process, her communication was exceptional. We were never in the dark and felt fully informed at every turn. We truly appreciated her transparency and knowledge. Once we move back to Southern California, Costanza will be our first call to represent us again!

Show all 64 reviews
map

Costanza's properties

Costanza has 6 properties for sale and sold 30 properties in the last 12 months, showing 4, sorted by most recent activity

For Sale
$749,988
101/3737 East 2nd Street
Long Beach CA 90803
3
2
2
Condo
SoldJun 10, 2026
$790,000
733 Walnut Ave
Long Beach CA 90813
2
1
3
Single-Family
Listing courtesy of Sotheby's International Realty
SoldJun 4, 2026
$999,998
5802 East Parapet Street
Long Beach CA 90808
2
2
2
Single-Family
Listing courtesy of Nancy Brown Broker
Pending
$520,000
208/3665 East 1st Street
Long Beach CA 90803
1
2
1
Condo
Show all 36 properties

Costanza's sold properties

Costanza has sold 30 properties in the past 12 months, showing 4.

Enter your property details to filter

I'm selling a
bedroom
with
bathrooms in
Property imageAddressBedroomsBathroomsCarparksProperty TypeClosing PriceDate Sold
733 Walnut Ave, Long Beach, CA, 90813
733 Walnut Ave
Long Beach CA 90813
2
1
3
Single-Family$790,000Jun 10, 2026
5802 East Parapet Street, Long Beach, CA, 90808
5802 East Parapet Street
Long Beach CA 90808
2
2
2
Single-Family$999,998Jun 4, 2026
2241 Pine Avenue, Long Beach, CA, 90806
2241 Pine Avenue
Long Beach CA 90806
2
1
1
Single-Family$550,000May 28, 2026
331/2599 Walnut Avenue, Signal Hill, CA, 90755
331/2599 Walnut Avenue
Signal Hill CA 90755
2
2
2
Condo$549,000May 20, 2026

Browse nearby locations

SMS
© 2026 RateMyAgent