About this home

Discover serene waterfront luxury with this brand-new construction by the prestigious Paramount Development Group. Set within a private, quiet neighborhood, you can also arrive by boat to your private dock after a day in Sag Harbor Village or Shelter Island. 33 Mashomuck Drive is an exquisite home that offers a rare opportunity to own a premier waterfront retreat, it is the ultimate in Hamptons living. Sitting on 0.79 acres, the property boasts breathtaking views of the bay and harbor as the outdoors becomes indoors thanks to massive nano glass doors that open out to the water, ensuring a tranquil and picturesque setting. The contemporary 2-story home spans 7,214 +/- sq. ft. with 7 bedrooms, 8.5 baths, and a rare waterside pool. Meticulously designed, the interior showcases an open kitchen with marble countertops, stainless steel Wolf and Sub-Zero appliances, and an elegant entry foyer leading to a spacious great room, family room, and study. The ensuite primary is a luxurious sanctuary with modern bath and walk-in closet, plus a bonus room, gym, and private guest quarters. Outdoors, the property continues to impress with a 20'x60' heated gunite pool, spa, and expansive deck, perfect for lounging and entertaining. The finished lower level encompasses a full-on wellness center, complete with a cold plunge, sauna, steam room, and gym. Enjoy direct access to the bay, complete with deepwater dock and electric. The attached 2-car garage and advanced heating and cooling systems ensure convenience and comfort year-round. Every detail of this home has been crafted to provide the ultimate luxury living on the shores of Sag Harbor. Enjoy the stunning sight of sunrises over the water, moonrises in the evening, and an unmatched view of the summertime sailboat races in the bay.

Facts and features

Schools

• Sag Harbor Elementary School

  elementary · K-5 · 2.2 mi

  8

• Pierson Middle High School

  middle · 6-12 · 2.4 mi

  8

• HARBOR WALDORF SCHOOL

  elementary · PK-K · 2.8 mi

Price history

• Dec 31, 2025 · Sold$7,500,000
• Jul 25, 2025 · Listed$19,995,000
• Sep 3, 2024 · Listing Removed$100,000
• Jul 19, 2024 · Listing Removed—
• Jul 3, 2024 · Price Changed For Rent$50,000
• Jul 3, 2024 · Price Changed For Rent$100,000
• Jun 13, 2024 · Price Changed For Rent$70,000
• Apr 12, 2024 · Sold$6,825,000

Tax history

• 2026$4,014 tax · $6,599,900 assessed
• 2025$3,622 tax · $6,599,900 assessed
• 2024$6,633 tax · $6,599,900 assessed
• 2023$3,308 tax · $6,599,900 assessed
• 2022$38,787 tax · $6,589,400 assessed
• 2021$42,137 tax · $6,589,400 assessed
• 2020$42,144 tax · $6,589,400 assessed
• 2018$21,107 tax · $3,407,400 assessed

Home value

$7,337,161

• Quantarium$7,337,161
• Collateral Analytics$7,073,000
• Cotality$8,402,500

Where it is