Andrea Kostanecki

Andrea Kostanecki

Licensed Real Estate Salesperson

Social Media


Market Reports


Top producer annually;
Chairman Circle/Platinum, Gold and Silver
President’s Club/Gold
Five Star Customer Service Awards, 2004-2020
SRES - E-Relo - CIPS

   Andrea's Concierge Page


Featured in Real Estate Publications:
The New York Times, The Wall Street Journal, Soundings, Antique Homes, New Canaan, Darien, & Rowayton Magazine, Connecticut Cottages and Gardens, Stamford Advocate, Darien Times, Norwalk Hour

Volunteer Activity

Compass Cares
Leukemia Society
US Ski Team Education Foundation
Pacific Crest Outward Bound School
State of the World Forum
Pachamama Alliance
Jimmie Huega Mt Bike Express


Licensed in CT
Buyer's Agent & Listing Agent
Luxury Home Marketing Specialist
Relocation Buyer and Seller Certification
National Association of Realtors®
Connecticut Association of Realtors®
Darien Association of Realtors®
SMART Multiple Listing Service (CT State MLS)


Bates College -
Bachelor of Arts (BA), English and Art History

Client Testimonials

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"We worked with Andrea to find a home in Rowayton and she was wonderful. She was incredibly proactive, attentive and thoughtful about the options she showed us, was mindful of our scheduling constraints - and ultimately found us our dream home! We are so appreciative of her support and would highly recommend her to someone looking for a driven and committed agent."

"We had owned our house in Rowayton for almost 20 years when we listed it with Andrea. For years I kept an eye on sales in the neighborhood looking for agents who showed a knack for marketing homes energetically and a track record of success. Andrea was on a very short list that met my criteria. Working with her closely just reinforced my opinion. Everything about our sale went as smoothly as we could have hoped."

"Andrea handled our sale with driven, never giving up, professionalism. What was impressive was her energy connecting people in the area and figuring out who could help her make the sale, i.e. this person knows that person. Andrea totally knows the community. Andrea is extremely hard-working, always has a smile and just does not give up working to sell your house. And when was the last time your broker cooked up a lobster dinner for you? We highly recommend Andrea! Cheers!"

"Andrea is like the Mayor of Fairfield County! Her colossal contact list helps her attract buyers as well as sellers. She knows the market (she grew up here on the water). She prizes relationships with her clients (they invite her to dinner and their weddings!) and with other realtors (they have her back!). She is a trusted local figure; savvy about the market; curious and clever about what makes the market move; perpetually seeking new ways to get houses sold. You'll begin as a client; you'll end up as her friend!"

"At a time when the bottom had fallen out of the real estate market, I needed to sell my home and relocate. Andrea came to my rescue with a keen eye and dedication to helping me through the long and difficult process. She was sharp and well aware of how to negotiate the rough waters of the time and not only found me a buyer but helped me keep my sanity! Kudos to a great real estate professional."



The Maritime Aquarium at Norwalk
About Andrea
Andrea is a dedicated real estate professional with a proven and impressive track record. Having entered the business in 2003, Andrea was quickly named Rookie of the Year and became one of the #1 producing agents in the Darien/Rowayton market. She has continued her success as a top producing agent throughout her career with distinguishing awards. Her boundless energy and enthusiasm, market knowledge and commitment to customer service speak volumes.

Andrea attributes her success to a combination of professional experiences from entrepreneurial, to traditional financial services sales, and lifestyle and destination marketing. Couple this with over 30 years as a resident of Darien, New Canaan and Rowayton and she is well equipped to handle the listing or buying needs of consumers - from condos to waterfront residences, from first-time buyers to empty nesters. Her expertise includes the sales of lots and land, new construction properties and charming antiques. She covers coastal Connecticut, including Darien, Rowayton, New Canaan, Norwalk, Westport, Southport, Fairfield and Greenwich, with her niche revolving around waterfront properties.

Andrea enjoys sailing (Noroton Yacht Club member), skiing, biking, kayaking (she built her own), cooking, traveling around the world, reading and photography. Andrea is dedicated to excellent customer service, foresight and vision and is committed to understanding a client's needs, lifestyle, community interests and financial goals. She'll go the extra mile, from back to back open house weekends to strategic meetings to helping clients fight (with great success) their tax assessments.

7 Pond St. Rowayton, CT - Coming Soon! $1,685,000

Nestled In the heart of the charming waterfront village of Rowayton on a quiet cul-de-sac just one block from 5 Mile River and around the corner from a wonderful ice cream shop, pizza parlor, Rowayton Seafood, the town launch, dock and marina. This house is sunlit and happy and sparkles with abundant lifestyle and opportunity. Features abound with a large deck and landscaped yard. Rowayton offers lovely beaches, racket sports, community events, Shakespeare in the Park, Rowayton Summer Music Festival. In-town living and close to I-95, Metro North, SONO nightlife and easy access to the best of Fairfield County. This home is not to be missed.

7 Pond St. Rowayton, CT - Coming Soon! $1,685,000

3 Lakeside Avenue Darien, CT - $1,180,000 - Under Contract in One Week!

The One You've Been Waiting For! Enjoy a wonderful in-town lifestyle in this renovated Colonial across from Tilley Pond. The heart of the house is the expanded kitchen with a center island, professional grade appliances and a charming breakfast banquet overlooking a private stone terrace. And, so much more including a large mudroom, formal dining room and charming living room with a wood burning fireplace, lovely built-ins and French doors. The second floor offers three bedrooms and two beautifully renovated bathrooms. The seasonal sun porch overlooks the expansive and professionally landscaped yard, and the lower level offers 456 additional square feet of playroom and office space. Wired for generator. Location, location, location!

3 Lakeside Avenue Darien, CT - $1,180,000 - Under Contract in One Week!

Andrea Kostanecki’s Listings

Listed By Compass
Under Contract - Continue To Show
3 BD
2 BA
1,650 SF