About
Luxury real estate, represented in full.
John Frangeskos is a leading luxury real estate advisor specializing in the Hamptons and Manhattan markets. Known for his market insight, strong negotiation skills, and deep expertise in the Hamptons luxury real estate market, he has built a reputation for delivering exceptional results for buyers, sellers, investors, and developers.
Over the course of his career, John has facilitated hundreds of millions of dollars in luxury sales and rental transactions across the Hamptons. He operates from Corcoran offices in Southampton, Westhampton Beach, and Chelsea, and divides his time between the Hamptons and New York City.
Recognized
Recognition, year after year.
Named Rising Star of the Hamptons in 2018. Consistently ranked within Corcoran’s prestigious Multi-Million Dollar Club, and among the top 1.5% of real estate agents nationwide. In 2025, John served as a lead panelist on the main stage at Corcoran’s BeCorcoran National Conference, speaking to hundreds of top agents about building and leveraging powerful referral networks.
He has also shared his marketing expertise nationally as a lead panelist at Corcoran’s Digital Summit in 2021, and his agent spotlight video was featured at the 2022 BeCorcoran conference at The Breakers in Palm Beach.
BeCorcoran ’25 · Lead Panelist
Background
An eye for how a house is built.
With a background in construction management and high-end spec development in Southampton Village, John brings a sophisticated understanding of architecture, design, zoning, and valuation, guiding clients through acquisition, development, positioning, and resale.
Originally from Scarsdale, New York, and raised in the Hamptons. Graduated summa cum laude from the University at Albany with concentrations in Marketing, Finance, and Business Administration. Studied International Business at Bocconi University in Milan.
Outside of real estate, John enjoys basketball, spearfishing, and travel.
Practice
Strategic guidance, through every stage.
Full-spectrum representation
New development, luxury resales, investment property, rentals, and commercial opportunities throughout the Hamptons, with active representation in Manhattan.
Architectural fluency
A background in construction management and high-end spec development in Southampton Village brings a sophisticated understanding of architecture, design, zoning, and valuation.
Acquisition to resale
John guides clients through acquisition, development, positioning, and resale — one advisor for the full arc of ownership.
Market intelligence, modern marketing
Market intelligence, financial analysis, and modern marketing maximize exposure and value. Digital content has reached a wide audience, including property tours with over one million views.
Offices