




137 Bay St, Sag Harbor, NY, 11963
About This Home
137 Bay Street represents one of the last opportunities of its kind-for the buyer who understands the difference between what is and what's coming. On nearly half an acre in the heart of Sag Harbor Village, with open views to Havens Beach and Sag Harbor Bay, the existing home offers an immediate presence. But the real value lies in what can be created here. Bay Street is in the midst of a clear evolution, with significant homes being reimagined and rebuilt. Properties with this scale, light, and proximity are increasingly rare-and becoming harder to replicate. For those who see where the market is going, the path is straightforward: expand, elevate, and fully realize a setting that already speaks for itself. Walk to the beach. Walk to the village. Build something that belongs.
Getting Around
Schools
Construction
Condition
- Year built: 1850
Type & Style
- Home type: SingleFamily
- Property subType: Single Family Residence
Interior
Basement
- Has basement: Yes
- Basement: Yes
Bedrooms & Bathrooms
- Bedrooms: 3
- Bathrooms: 2
- Full bathrooms: 1
- 1/2 bathrooms: 1
Cooling
- Cooling features: Central Air
Features
- Fireplace: Yes
Interior Area
- Total structure area: 1,930
- Total interior livable area: 1,930 sqft
Property
Details
- Parcel number: 0302003000100005000
Features
- Stories: 2
Lot
- Lot size: 0.40 Acres
Parking
- Parking features: GarageDetached
- Has garage: Yes
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
- Hurricane
- Inland Flooding
- 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 | $16,686 | $200,232 |
| Home Insurance * | $1,447 | $17,364 |
| Property Taxes | $4,455 | $53,460 |
| Electricity | $318 | $3,827 |
| Total | $22,906 | $274,872 |
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 |
|---|---|---|
| 2026-04-25 | Listed for sale | $3,750,000 |
For Sale by Agent
