ONE Sotheby’s International Realty is a privately held residential real estate brokerage headquartered in Miami, Florida. Founded in 2008, the firm focuses on luxury sales and marketing across Florida’s East Coast, operating both brokerage services and a new-development division. Its advisors serve prime coastal and urban submarkets with a portfolio that spans single-family homes, condominiums, and resort-area residences. The company’s brand affiliation connects listings to the Sotheby’s International Realty network and associated marketing channels. ONE Sotheby’s maintains its headquarters on Mary Street in Coconut Grove and operates multiple offices throughout the region to support local market coverage and project sales activity.