Julian Johnston, a longtime South Florida luxury real estate professional, has joined ONE Sotheby’s International Realty. Based in the firm’s Miami Beach office, Johnston will continue serving clients along the Golden Beach-to-Coral Gables corridor while bringing more than $400 million in active listings and a career sales record exceeding $10 billion.
Key takeaways
Johnston’s move strengthens ONE Sotheby’s position in South Florida’s high-end residential market.
- He will operate from the brokerage’s Miami Beach office.
- His focus remains the Golden Beach-to-Coral Gables corridor.
- He brings more than $400 million in active listing inventory.
- His career sales volume exceeds $10 billion.
- RealTrends ranked his team No. 1 among medium teams in Miami Beach by 2026 sales volume.
A major addition to ONE Sotheby’s Miami Beach operation
Johnston joins ONE Sotheby’s after more than two decades in the industry. His business has been built around luxury properties in Miami Beach and other prominent coastal and urban neighborhoods, making the move a significant addition to the brokerage’s local platform.
ONE Sotheby’s President and CEO Daniel de la Vega said Johnston had developed one of South Florida’s most notable luxury real estate businesses. The company expects its technology, marketing resources and international network to help Johnston expand his team’s reach and enhance the client experience.
Focus on South Florida’s luxury corridor
From his Miami Beach base, Johnston will continue concentrating on the stretch between Golden Beach and Coral Gables. The corridor includes some of the region’s most sought-after waterfront, island and urban residential markets, where demand is driven by high-net-worth buyers and sellers.
His current portfolio includes more than $400 million in active listings, giving ONE Sotheby’s an immediate increase in luxury inventory across this important portion of South Florida.
Record of high-profile transactions
Johnston has participated in several of the area’s largest residential transactions. His reported deals include a $29 million Brickell Avenue estate, a $28 million celebrity transaction on Hibiscus Island, a $22.875 million North Bay Road sale and a $21 million Fisher Island residence.
RealTrends ranked Johnston and his team No. 1 among medium teams in Miami Beach by sales volume in 2026. The team also ranked No. 3 in Florida and No. 16 nationally, underscoring the scale of its operation.
Global reach for clients
Johnston said the move will allow him to pair ONE Sotheby’s international brand recognition with its strong presence along Florida’s east coast. He described the combination as an opportunity to provide clients with a higher level of service and broader exposure for luxury properties.
Originally from Adelaide, Australia, Johnston has lived in Miami Beach for more than 25 years. His long-term connection to the market, combined with the brokerage’s global network, positions the new partnership to serve both local clients and internationally oriented buyers.