21 Dairy Farm Road
Stony Brook, NY 11790
- 4 beds
- 2 baths
- 1,938 sqft
- ~3/4 acre lot
- $386 per sqft
- 1955 build
- – on site
If you are looking for a Stony Brook home with country charm, set on a bucolic .8 acre of property, then this home may be the one you have been waiting for! Beautiful wood flooring, large windows allowing for sunlit interior and incredible property views, a large open recreation area in the basement, and a cozy breezeway with flagstone, are just a few of the elements that make this home a winner. Just seconds from both Stony Brook University and the harbor. Lots of shopping, restaurants, and cultural activities right in the area. Award winning Three Village Schools.
Last checked:
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Last updated Apr 25, 2025
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MLS# 852211 —
The Building
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Year Built:1955
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Basement:true
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Architectural Style:Cape Cod
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Construction Materials:Shake Siding
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Patio And Porch Features:Covered, Porch
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Building Area Units:Square Feet
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Attic:None
Interior
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Living Area:1938
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Total Rooms:8
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Interior Features:First Floor Bedroom, First Floor Full Bath
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Fireplace Features:Living Room, Wood Burning
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Fireplaces Total:1
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Fireplace:true
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Flooring:Carpet, Wood
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Living Area Source:Other
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# of Kitchens:1
Financial & Terms
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Lease Considered:false
The Property
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Lot Size Acres:0.8
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Parcel Number:0200-247-00-05-00-014-000
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Property Type:Residential
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Property Subtype:Single Family Residence
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Lot Size SqFt:34,848 Sqft
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Property Attached:false
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Additional Parcels:false
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Waterfront:false
Listing Agent
- Contact info:
- Agent phone:
- (631) 974-7814
- Office phone:
- (631) 751-0303
Taxes
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Tax Year:2025
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Tax Source:Municipality
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Tax Annual Amount:15920
Beds
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Total Bedrooms:4
Baths
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Full Baths:2
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Total Baths:2
The Listing
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Special Listing Conditions:None
Heating & Cooling
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Heating:Hot Air, Oil
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Cooling:Central Air
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# of Heating Zones:2
Utilities
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Sewer:Cesspool
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Utilities:Cable Connected, Electricity Connected, Trash Collection Public, Water Connected
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Water Source:Public
Appliances
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Appliances:Dishwasher, Dryer, Oven, Refrigerator, Washer
Schools
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High School:Ward Melville Senior High School
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Elementary School:William Sidney Mount Elementary
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High School District:Three Village
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Middle School:Robert Cushman Murphy Jr High School
The Community
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Association:false
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Senior Community:false
Parking
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Garage:true
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Garage Spaces:1
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Carport:false
Monthly cost estimate

Asking price
$749,000
Expense | Monthly cost |
---|---|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$4,010
|
Taxes | $1,326 |
Insurance | $205 |
Utilities | $390 See report |
Total | $5,931/mo.* |
*This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
Date | Event | Source | Price | % Change |
---|---|---|---|---|
4/24/25
Apr 24, 2025
|
Coming Soon | ONEKEY | $749,000 |

53% of nearby similar homes sold for over asking price
Similar homes that sold in bidding wars went $40k above asking price on average, but some went as high as $151k over asking price.