Andrea Kostanecki

Andrea Kostanecki

Licensed Real Estate Salesperson


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

   Andrea's Bridge Loan Services 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

Social Media


Market Reports


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 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.

2 THOMAS PLACE ROWAYTON, CT -Under Contract in just 6 days!

Inside and out, this “tree house” single-floor residence offers the best of the best: luxurious living exquisitely enhanced by the 240 degrees of breathtaking water views overlooking Wilson Cove, Sheffield Island and Long Island Sound. Thomas Place, a premier luxury condominium enclave limited to 20 sophisticated units, is situated on the shore of the highly sought-after coastal community of Rowayton, Connecticut. This 2 bedroom/2 bath home of 1645+ square feet is located in the charming old stone Thomas School House and has been fully renovated in 2021 to the highest standards with high ceilings, custom details, live-sawn white oak floors and exquisite finishes. The light -filled open floor plan offers extensive eastern and southern exposures, a private deck and secluded garden patio. This is the perfect home for a relaxing, turn-key and low maintenance, waterfront lifestyle. Every day is a romance with nature. By day, watch the tide and sun rise and set, feel the rhythm of the sea, and delight in sighting the local Osprey. By night, be entertained by the twinkling stars and flickering lights across the water; delight your guests with access to the dock, deck and boat house…a glorious spot to launch a kayak or paddle board or to set up a roaring fire and elegant water-side dinner.