About Billy Breen

Billy Breen brings more than two decades of experience from Wall Street to the Charleston real estate market. After spending over 20 years in finance, Billy relocated from Long Island, New York to Mount Pleasant in 2011, where he and his wife, Jen, are raising their three children, James, Riley, and Brendan.

In 2014, Billy transitioned into real estate, applying the same analytical mindset and disciplined approach he developed while trading stocks. Today, he uses those skills to help buyers and sellers in the luxury and vacation home market secure the best possible value while receiving a high level of personal service.

Billy’s business philosophy is guided by advice he received early in his career: “Your word is your bond.” That principle continues to shape how he works with clients, emphasizing trust, integrity, and accountability in every transaction.

Outside of real estate, Billy prioritizes family above all else. He also enjoys golfing, boating, and spending time at the beach, fully embracing the Lowcountry lifestyle.

Client Testimonials 

★★★★★ Gretina Bruns
“I had the good fortune of working with Billy Breen after struggling to find the right realtor, and he was truly a breath of fresh air. Billy listened carefully to what I wanted and thought ahead to things I hadn’t even considered, like making sure I had a place to move once my home sold. He was patient, never pushy, and always balanced professionalism with genuine care. Billy offered thoughtful suggestions, listened to feedback, and made a long process feel manageable. He was both a trusted advisor and a friend. I recommend Billy to anyone looking to buy or sell.”

★★★★★ Jenny Ranieri
“Billy Breen is the best. He helped us find our dream home after renting for several years and was incredibly patient throughout the process. He took the time to help us understand the area and never rushed us. If you’re looking for a realtor, Billy is the person to call.”

★★★★★ First-Time Homebuyer
“My experience working with Billy Breen was excellent. As a first-time buyer, I was intimidated at the start, but Billy made the entire process seamless and enjoyable. He was easy to communicate with, trustworthy, knowledgeable, and always provided timely answers. I would highly recommend him to anyone buying a home.”

★★★★★
“Billy did a wonderful job understanding exactly what we wanted. He provided listings that matched our criteria and coordinated showings for seven homes in one day. We found the perfect house and made an offer within a week. The process was efficient and well-organized from start to finish.”

★★★★★ Out-of-Area Buyer
“From the first professional text message to closing on my beachfront condo, Billy Breen exceeded every expectation. Since I didn’t live locally, he took videos of properties and kept me fully informed every step of the way. I trusted him completely, even leaving my keys with him after closing. His support and professionalism were outstanding.”

★★★★★ Jim Torykian
“My experience with Billy Breen was fantastic. His guidance and hands-on approach made selling my home smooth and stress-free. Billy never rushed me and always provided thoughtful counsel instead of pressure. I plan on buying again soon and look forward to working with him again.”