




59 Mashomuck Dr, Sag Harbor, NY, 11963
About This Home
Quite simply, these are the most spectacular views you will find in the Hamptons. Recently constructed and stunning, this truly special waterfront modern home is set on 1.7 of the most spectacular acres you will find. Sited on the edge of Sag Harbor Bay and nestled in amongst a pristine tidal estuary, this light filled home features six bedroom suites set across 6000+/- square feet of finished living space on three levels, all serviced by elevator. A generous primary suite situated on the main level has floor to ceiling glass, and a private covered terrace with sweeping views from sunrise to sunset, and literally not a neighbor in sight. There are an additional three guest suites on this level as well. Upstairs, one is awed upon reaching the top of the stairs as the full scope of the vista comes into play. An open concept living room leads to the kitchen and dining areas, all surrounded by expansive fixed-glass and sliding doors that allow for true indoor-outdoor experiences with what are simply some of the most unique and special views on the East End. The gourmet chefs kitchen features spectacular Italian stone selected specifically to complement the natural scenic beauty outside, and is anchored by a luxurious Officine Gullo range. Outside, the expansive decks feature an elevated pool, open spaces for lounging in the sun, and magnificent covered dining. At garden level are two additional large family suites, a media and recreation space, and a waterfront gym with outdoor six-person barrel sauna and cold plunge. Exiting through the beautifully manicured lawn is a private walkway to the bayfront beach, perfect for a relaxing lunch at your own picnic table in the sand. There simply is no other offering like this to be found. Spectacular.
Getting Around
Schools
Construction
Condition
- Year built: 2023
Type & Style
- Home type: SingleFamily
- Property subType: Single Family Residence
Interior
Basement
- Has basement: Yes
- Basement: Yes
Bedrooms & Bathrooms
- Bedrooms: 6
- Bathrooms: 8
- Full bathrooms: 7
- 1/2 bathrooms: 1
Cooling
- Cooling features: Central Air
Features
- Fireplace: Yes
Interior Area
- Total structure area: 6,000
- Total interior livable area: 6,000 sqft
Property
Details
- Parcel number: 0901003000200056000
Features
- Stories: 2
- Private pool: Yes
- Pool features: Heated
- Has view: Yes
- View description: Water
- Has water view: Yes
- Water view: Water
- On waterfront: Yes
- Waterfront features: Waterfront
- Frontage type: Waterfront
Lot
- Lot size: 1.70 Acres
Parking
- Parking features: None
Climate Risk is Financial Risk
Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.
Biggest Threats for This Home
- Coastal Flooding
- Hurricane
- Winter Weather
- Tsunami
How This Home’s Risks Compare
FEMA Declared Disasters in Suffolk County and New York
Understanding the Costs
Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.
Estimated Costs Today
| Monthly | Annual | |
|---|---|---|
| Mortgage | $100,878 | $1,210,536 |
| Home Insurance * | $8,752 | $105,024 |
| Property Taxes | $1,550 | $18,600 |
| Electricity | $991 | $11,898 |
| Total | $112,171 | $1,346,052 |
Income You'd Need if You Spent...
New York FAIR Plan Programs
How Costs Could Change Over Time
Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.
Comparing Against the Market
Price Per Sq Ft
vs Other Active Listings
Avg $/sqft
vs Homes Sold Last Month
Median $/sqft
Current Market Trends
Median Price Per Square Foot
The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.
Historicals for This Listing
Zestimate History ($/sqft)
Price History
| Date | Event | Price |
|---|---|---|
| 2026-02-03 | Listed for sale | $19,950,000 |
| 2025-09-08 | Listing removed | $395,000 |
| 2025-05-15 | Price change | $395,000 |
| 2025-03-03 | Price change | $495,000 |
| 2024-10-16 | Listed for rent | $500,000 |
| 2024-08-19 | Listing removed | -- |
| 2024-08-07 | Price change | $450,000 |
| 2024-07-12 | Listed for rent | $500,000 |
| 2021-05-12 | Listing removed | -- |
| 2021-03-21 | Price change | $17,500 |
| 2020-12-04 | Listed for rent | $12,500 |
| 2020-09-20 | Listing removed | $40,000 |
| 2020-05-18 | Price change | $40,000 |
| 2020-04-07 | Price change | $45,000 |
| 2020-03-14 | Listed for rent | $65,000 |
| 2020-01-08 | Listing removed | $20,000 |
| 2019-09-23 | Price change | $20,000 |
| 2019-07-18 | Price change | $45,000 |
| 2019-06-15 | Listed for rent | $40,000 |
| 2016-09-12 | Sold | $5,075,000 |
| 2016-04-24 | Price change | $5,150,000 |
| 2016-03-04 | Listed for sale | $5,495,000 |
| 2015-11-24 | Listing removed | $5,550,000 |
| 2015-11-19 | Listed for sale | $5,550,000 |
| 2014-07-10 | Sold | $5,000,000 |
For Sale by Agent
