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About Jon
Jon Grossman is a lifelong East Hampton resident whose roots on the East End run as deep as the foundations he's been building for over 35 years.
Before transitioning into real estate, Jon built a successful career as a general contractor specializing in luxury homes across the East End. He has spent decades bringing high-end properties to life, developing an expert eye for design, craftsmanship, land value, and what truly makes a home exceptional in this market.
Now working alongside his son Zach, who spent 10 years building homes with him in the field, Jon brings that same hands-on knowledge and generational perspective to Compass. Together, they offer clients something rare: an insider's understand of how properties are built, how they age, and which details matter most when buying or selling in the Hamptons.
Jon's lifelong connection to East Hampton, combined with his exentsive expertise in design and construction, allows him to guide clients with clarity, confidence, and a level of insight that goes far beyond a typical real estate transaction. Whether representing a seller or advising a buyer, Jon sees every home through the lens of someone who has spent a lifetime building them.
Jon Grossman’s Transactions
Past Sales

$10,650,000
- 8
- Bedrooms
34 Ashwood Court
Amagansett
Past Rentals




