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Home For Sale
78 Round Pond Ln
Sag Harbor, New York 11963
Suffolk CountyCommunity:
$4,495,000
4 br, 5.0 bath
4195 sq. ft.
2.110 acres
Set on 2.1 acres abutting the protected Long Pond Greenbelt, this 4,195-square-foot modern estate offers a rare blend of architectural sophistication and natural serenity, just minutes from Sag Harbor Village. With 4 bedrooms and 4.5 bathrooms, the home is anchored by a dramatic double-height great room, where walls of floor-to-ceiling glass frame the surrounding landscape and a Belgian wood-burning fireplace serves as both a striking focal point and an efficient whole-home heat source. Designed for seamless living and entertaining, the main level flows effortlessly from the great room into a professional-grade kitchen featuring an oversized waterfall island, and into a dedicated dining area that opens directly to the outdoors. Thoughtful amenities enhance the experience, including an en-suite guest bedroom, private home theater, and a fully equipped gym. Upstairs, the layout is intentionally divided into two wings for optimal privacy. The primary suite occupies its own side, complete with a walk-in closet, spa-inspired bath, and private terrace overlooking the grounds. Opposite, two additional en-suite bedrooms provide comfortable accommodations for family or guests. The outdoor setting evokes a private resort, centered around a heated gunite pool with integrated spa and waterfall. A well-appointed pool house includes a kitchenette, infrared sauna, and outdoor shower, while the landscaped grounds feature an irrigated garden, fire pit, and expansive bluestone patios. A detached garage completes the property. Beyond its design and amenities, the home is built for lasting performance, with a four-zone HVAC system with ionic air scrubbers, a triple-stage water filtration system, and a full-property generator. A truly turnkey offering in one of Sag Harbor's most naturally preserved settings.
Interior:
- Bedrooms: 4
- Baths: 5.0
- Sq Ft: 4195
- Year Built: 2016
- Utilities:
- Fireplaces: Has Fireplace
- Stories:
- Heat/AC: Fireplace(s)
- Garage: Garage
Exterior:
- Lot Size: 2.110 acre
- Lot Dimensions:
- View Types:
- Yard:
- Siding:
- Roof:
- MLS #: 11694294
Contact Information:
Listing Agent: Matthew Breitenbach, Compass, 212-913-9058, 212-913-9058
Listing Site, Listing Status: Active
Copyright © 2026 My State MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Copyright © 2026 My State MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Ad Number: 7591299
Viewed 20 times.
Updated: Apr 27, 2026

