About Colleen Rock
About Colleen Rock
The Rock Family

The passion behind Colleen's success is the belief that when buying or selling a home "you're investing in your lifestyle." With an unwavering commitment to helping others succeed in their real estate goals, she capitalizes on 25+ years of experience in real estate. Employing a consumer-centric style and innovative marketing strategies, Colleen's sentiment is - listen carefully, speak the truth and negotiate to win.

When Colleen is not selling real estate or involved in community events, she can be found with her husband Terry and family in New Canaan, strolling the towns' shopping boutiques, walking the nature trails, listening to music, or reading a good mystery. For that occasional stress release, she's in the whitewaters of Colorado rafting, hiking or biking.


Your objective is her priority. Colleen strives to ensure a seamless, positive experience while maintaining the highest regard to your valuable time and utmost discretion. Because referrals and repeat clientele are both the backbone of her business and a telling sign of her success, Colleen is especially proud to have garnered a steady stream of loyal business from family and friends, professional athletes and senior executives/officers.


Sold over 600 homes 97.2% average List/Sale Ratio Certified Residential Specialist (CRS) designated to less than 3% of Realtors nationally. Realty Alliance's National Sales Award (in recognition of an exceptional performance as one of the Leading Residential Real Estate Professionals in America) Colleen's professionalism, unique skill set and outstanding performance are the fundamentals to her Signature Style


To assure nothing goes unnoticed in your home buying or selling process, Colleen is personally involved in every step. She utilizes the industry's top CRM/Marketing program to handle every detail and employs award winning strategies to solidify your edge within the real estate market. "When it comes to your real estate needs, please know, just as your home is a reflection of you, your satisfaction is a reflection of me."


"I would recommend Colleen as a real estate agent over 99% of the agents out there. She is well above, more forward thinking, patient and technology savvy versus any other agent I've met. She assisted in our New Canaan home search and sold our previous home within 7 days"
~ Erwin C.

"We've worked with Colleen when both buying and selling homes over the course of the past 20 years. She is the only realtor for us. I cannot express how delighted we are with her professionalism. Each and every time we've needed her services she has exceeded our expectations. Colleens in depth knowledge of the real estate business is unparalleled."
~ Elizabeth M.

"Colleen is the best real estate professional I have ever encountered. Her creative style and aggressive, but professional, sales ability has set her apart from others. I have many business associates that I have recommended and used her talents with exceptional results."
~ Chuck Schmitt

"Colleen is knowledgeable, dedicated and passionate about real estate. With over 25 years experience her professionalism never waivers. I would highly recommend her!"
~ Patti Baszuk

"Colleen exhibits a level of integrity, loyalty and professionalism that is unmatched. Her keen creative instincts set her apart from others in the industry. Through her contacts, research, and innovative thought process, she always stays on the cutting edge of the latest technology and trends..."
~ Nicole Sommers

"We truly felt that Colleen wanted us to find the best home for our family, and not just any property. She was a strong advocate for us in negotiating the best price and terms for purchase. We were nervous about our prospects for selling our existing home, but were able to sell in excess of our asking price, on the first week on the market... Colleen is a pro who is passionate about her work, and it shows."
~ Elizabeth Conway

References are always available upon request.

Global Reach
Colleen Rock
Halstead Real Estate

As one of the top residential real estate brokerage firms in the New York metropolitan area, Halstead has more than 1,300 sales and rental agents located in premier retail storefronts in Manhattan; Brooklyn; Queens; the Bronx; the Hamptons; Fairfield County, Connecticut; New Jersey and the Hudson Valley.

Founded in 1984 by Clark P. Halstead and Diane M. Ramirez, who now leads the firm as Chairman and Chief Executive Officer, Halstead is well known as an industry pioneer and leader. In New York City, Halstead was the first large firm to create storefront offices, taking real estate out of hidden, corporate midtown spaces and bringing it into the communities we serve. To this day, our offices throughout the tristate region are among the most strategically located in highly trafficked areas, creating outstanding showcases for our properties. The company we keep reflects who we are what we're about. We are members of the most respected organizations in the real estate industry. Our associates help us to expand our vision and share our commitment to the highest quality services available. These affiliations are more than just logos,

Halstead is an active participant in each of them. We proudly serve on advisory boards, task forces and in many other leadership positions in the following organizations.

Mayfair International Real Estate

Mayfair International Realty's global network based in London brings together over 450 of the finest luxury real estate brokers and agents from across the globe, providing sophisticated international marketing. As an exclusive member of Mayfair in NYC and Fairfield County CT, we further our global exposure for our sellers and bring the global investor and buyer to our marketplace.

Luxury Portfolio

Luxury Portfolio is the elite property component of Leading Real Estate Companies of the World. Comprised of the very best independent real estate brokerages, Luxury Portfolio provides strength in numbers and global reach while being selective enough to be represented by only the finest firms in each luxury destination. The website, www.luxuryportfolio.com is the first of its kind to display information in eight languages and 22 currencies. Visit http://www.luxuryportfolio.com for more information.

Leading Real Estate

Leading Real Estate Companies of the World is an important affiliation and resource that guarantees our clients more venues for exposure and excellent real estate services around the globe. The organization encompasses 650 of the foremost local and regional brands in residential real estate, with 4,700 offices and 120,000 sales associates in the US and over 34 countries. Collectively, we sell 1.4 million homes annually valued at $380 billion, more than any national brand or franchise. Members also sell more real estate priced above $1 million. Our affiliates generate nearly 60,000 referral

Giving Back

Giving back is at the center of Colleen's belief system. In addition to various other charities, she strongly supports the Children's Miracle Network (CMN) and the New Canaan Community Foundation (NCCF). Because Colleen's clients are the backbone of her real estate business which strives, in part, to support her charitable funding, contributions are made in their name as a special "thank you."

Click here to learn more about Children's Miracle Network

Childrens Miracle Network

Click here to learn more about the New Canaan Community Foundation

New Cannan Community Foundation