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18 Horsemill Rd, Water Mill, NY, 11976

4beds
4baths
4,194sqft
$6,995,000
$1,668price/sqft
$38,969/moest. monthly cost
$1,558,760/yrincome needed

About This Home

In Watermill, one half mile from Mecox Bay, a unique opportunity to be only the third owner of a 1937 farmhouse on a farmer's acre overlooking 70 unobstructed acres of pristine farmland. The first level consists of an entry hall, one bedroom, one bathroom, a living room with a wood burning fireplace, dining room, office, kitchen, laundry room attached to a 2 car garage and a 600 square foot family room adjacent to a patio. The second level has a 600 square foot primary suite with another fireplace and ensuite bath. There is a second bedroom with an ensuite bath as well as a third bedroom and bathroom. The eat-in kitchen has a Traulson refridgerator and Gaggeneau oven and dishwasher. The house has central air, central vac and a security sysrem. There is a full basement with a McClain furnace, 2 water heaters, a sump pump and a smart water shut-off system. The lush exterior is full of mature trees and plantings as well as a secluded 18 by 45 foot inground gunite pool. The house is on a corner lot with double setbacks and 2 driveways with room for further expansion. Asking price: $6.995,000.

Getting Around

15
WalkingCar-Dependent
0
TransitVery Limited Transit
28
BikeSomewhat Bikeable

Schools

7/10
Southampton High SchoolGrades 9-123.3 mi
5/10

Construction

Condition

  • Year built: 1937

Materials

  • Roof: Shake / Shingle
  • Construction materials: Wood

Type & Style

  • Home type: SingleFamily

Interior

Appliances

  • Appliances included: Dishwasher,Dryer,Freezer,Microwave,Range / Oven,Refrigerator,Washer

Basement

  • Basement: Unfinished

Bedrooms & Bathrooms

  • Bedrooms: 4
  • Bathrooms: 4
  • Full bathrooms: 4

Features

  • Flooring: Hardwood
  • Fireplace: Yes

Heating & Cooling

  • Heating features: Forced air,Oil
  • Cooling features: Central

Interior Area

  • Total interior livable area: 4,194 sqft

Property

Details

  • Parcel number: 0900116000100015000

Features

  • Exterior features: Wood

Lot

  • Lot size: 0.97 Acres

Parking

  • Total spaces: 2
  • Parking features: Garage - Attached

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

  • Inland Flooding
    Inland FloodingRelatively High
  • Coastal Flooding
    Coastal FloodingModerate
  • Hurricane
    HurricaneModerate
  • Winter Weather
    Winter WeatherModerate
  • Tsunami
    TsunamiInsufficient Data

How This Home’s Risks Compare

Inland Flooding
Coastal Flooding
Hurricane
Winter Weather
Tsunami

FEMA Declared Disasters in Suffolk County and New York

Flood
Severe Storm
Snowstorm
Straight Line Winds
Tropical Storm
Winter Storm

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

MonthlyAnnual
Mortgage $35,370$424,440
Home Insurance *$2,714$32,568
Property Taxes $192$2,304
Electricity $693$8,317
Total$38,969$467,628
*Does not include cost of any FAIR Plan premiums

Income You'd Need if You Spent...

35% on housing$1,336,080/yr
40% on housing$1,169,070/yr
45% on housing$1,039,173/yr

New York FAIR Plan Programs

New York Property Insurance Underwriting Association

Covered
WildfireWildfire
HailHail
WindWind
Visit Website →
Current Policies
Residential: 20,669Commercial: 1,556
Total Premiums$32.27M
Total Exposure$7.63B

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.

Insurance Growth Rate5-year average: 4.6%
4.6%
0%30.0%
Electricity Growth Rate10-year average: 7.1%
7.1%
0%15.0%
Property Taxes Growth Rate2-year average: 1.0%
1.0%
0%15.0%
Income Spent on Housing
30%
30%45%

Comparing Against the Market

Price Per Sq Ft

$1,668This listing

vs Other Active Listings

Avg $/sqft

ZIP 11976$2,027
Suffolk County$723

vs Homes Sold Last Month

Median $/sqft

ZIP 11976$1,141
Suffolk County$412

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)

No zestimate history available

Price History

DateEventPrice
2026-07-27Listed for sale$6,995,000

For Sale by Owner

AgentProperty Owner

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