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MLS ID KEY977846Last updated Oct 16, 2026

Single Family

3 Jefferson Ave.

Active · Southampton · Suffolk County, NY 11946

Bedrooms
2 Beds
Bathrooms
2 Baths
Year built
1973
Est. monthly taxes
$565.92
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About this home

Discover the charm of this unique upside-down beach home nestled in the desirable Rampasture area. Set on a generous .45-acre lot, with room for a pool, this residence offers a perfect blend of light-filled interiors and inviting outdoor spaces. The second floor serves as the heart of the home, boasting an open-concept living area bathed in natural light, complete with a wrap-around deck that invites you to enjoy the serene surroundings. The modern kitchen features an island that seamlessly connects to the living and dining room, where a cozy natural gas fireplace adds warmth and ambiance. A full bathroom on this level provides convenience and functionality. On the first floor, you'll find two comfortable bedrooms, an additional full bathroom, and a versatile living room/den area. The enchanting four-season sunroom offers a tranquil space to relax year-round, while the basement provides adequate storage with access from the interior and exterior. Step outside to a spacious backyard, perfect for entertaining or simply soaking in the natural beauty. An outdoor shower adds a touch of beachside convenience. This home is ideally located within walking distance to a private deeded bay beach, offering endless opportunities for scenic walks and water activities. Plus, you're just 10 minutes from the renowned Dune Road and the Town of Southampton ocean beaches, making every day feel like a vacation. **Sellers are currently installing a new natural gas heating system and hot water heater.**

Listing snapshot

Days on site
59 days
Listed on MLS
Mar 28, 2026
Full baths
2
Half baths
0
Annual property tax (MLS)
$6,791
Tax year
2025
Area source (MLS)
Public Records
Listing brokerage
Compass Greater NY LLC
MLS ID
KEY977846
Last updated
Oct 16, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
1973
Garage
No
Parking
Driveway
Water source
Public
Sewer
Septic Tank
Utilities
Cable Connected, Electricity Connected, Natural Gas Connected, Water Connected

Interior features

Basement
Bilco Door(s), Full
Heating
Natural Gas
Cooling
Ductless
Interior
First Floor Bedroom, First Floor Full Bath, Open Floorplan, Open Kitchen
Appliances
Cooktop, Dishwasher, Dryer, Microwave, Oven, Range, Refrigerator, Stainless Steel Appliance(s), Washer
Fireplace
Yes
Fireplaces
1

Exterior features

Architectural style
Contemporary
Construction materials
Frame
Private pool
No

Schools (MLS)

Elementary school
Hampton Bays Elementary School
Elementary school district
Hampton Bays
Middle school
Hampton Bays Middle School
Middle school district
Hampton Bays
High school
Hampton Bays High School
High school district
Hampton Bays

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. Listing updated from MLS
  2. First seen on this site
  3. MLS status changed

Location

Southampton · Suffolk County, NY 11946Show interactive map
3 Jefferson Ave.

Southampton · Suffolk County, NY 11946

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Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
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Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

Listing data is supplied by the MLS and may change without notice.