Chelsea Costello Real Estate Salesperson

  • Real Estate Salesperson
  • Member of National Association of Realtors
  • Member of Long Island Board of Realtors


Chelsea Singer Costello has corporate sales and marketing knowledge and also brings a strong understanding of customer service to the Daniel Gale Sotheby’s International Realty team. As a successful small business owner in Manhattan, Chelsea has a passion for working with clients and delivering them the best possible experience. Prior to opening her own business, Chelsea served as a Project Manager for a highly regarded luxury jewelry brand.

Having both corporate and small business experience, Chelsea is able to deliver the utmost professionalism while truly caring about her clients. Her versatile background has given her a strong skill set to assist you, whether you are buying or selling. Chelsea looks forward to helping you efficiently and attentively.

Chelsea is a second generation Garden City resident and is involved with the town and all it has to offer. Her and her husband, Peter, also of Garden City, recently moved back to the Village after living a few years in Manhattan. In her free time, Chelsea volunteers in the Neonatal Intensive Care Unit at New York Presbyterian Hospital, fundraises for Memorial Sloan Kettering Cancer Center and enjoys golfing, skiing and most importantly, spending time with family.

Daniel Gale Sotheby's International Realty

800.942.5334 800.942.5334

Each office is independently owned and operated. We are pledged to provide equal opportunity for housing to any prospective customer or client, without regard to race, color, religion, sex, handicap, familial status or national origin.

Sotheby's International Realty® is a registered trademark licensed to Sotheby's International Realty Affiliates LLC. Each Office is Independently Owned and Operated.