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Single family home for sale at 20 Oak Ln, Southampton, NY 11946 | MLS# 847747 | Listing updated on 2026-10-07
Photo 1 of Single family home for sale at 20 Oak Ln, Southampton, NY 11946 | MLS# 847747 | Listing updated on 2026-10-07
Photo 2 of Single family home for sale at 20 Oak Ln, Southampton, NY 11946 | MLS# 847747 | Listing updated on 2026-10-07
Photo 3 of Single family home for sale at 20 Oak Ln, Southampton, NY 11946 | MLS# 847747 | Listing updated on 2026-10-07
Photo 4 of Single family home for sale at 20 Oak Ln, Southampton, NY 11946 | MLS# 847747 | Listing updated on 2026-10-07
46+
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Street View

$2,399,900

Monthly Est:$11,945

  • Beds Icon5 Beds
  • Beds Icon
    5 Baths
  • Beds Icon4,263sqft

20 Oak Ln, Southampton, NY 11946

$11,945/moEst:

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  • Single Family Residence

  • Built in 1978

  • $83.33/mo HOA

  • 21,780 sqft lot

  • $563/sq.ft

Description

Experience the best of the East End from this waterfront retreat in Hampton Bays’ exclusive Old Harbor Colony. Set on a quiet street with beautiful water views, 20 Oak Lane offers a rare blend of space, light, and true boating lifestyle—just minutes to ocean beaches, waterfront dining, and everything the Hamptons have to offer. With over 4,200 square feet of interior living space plus a two-car garage, five bedrooms (including two primary suites), four full baths, and one half bath, this home is designed for relaxed coastal living and effortless entertaining. Step outside to your private backyard oasis featuring a recently relined pool (2024), expansive deck, and a 120-foot composite bulkhead—offering exceptional dockage capacity for multiple boats or larger vessels, with easy access to the bay and ocean. Inside, cathedral ceilings and natural light define the main living spaces. The spacious kitchen offers abundant cabinetry, generous island prep space, a stove plus two wall ovens, and direct access to the deck and pool. Adjacent, the butler's pantry provides additional cabinetry, counter space, plus a refrigerator, a sink, and convenient access to the laundry room and attached two-car garage. Multiple gathering areas—including a family room with gas fireplace, a living room with wood-burning fireplace, and a sunroom with a door out to the deck and pool—create an ideal flow for both everyday living and entertaining. Upstairs, a primary suite offers a private, elevated retreat with its own living area, mini-kitchen, walk-in closet, large ensuite bath, and a deck overlooking the water. The layout also includes a main-level bedroom and full bath, along with another spacious primary suite. A large recreation room provides additional space for relaxing, games, or media. Two additional bedrooms with cathedral ceilings and a shared Jack-and-Jill bath complete the upper level. Whether you’re spending the day at Ponquogue Beach, boating from your backyard, or enjoying summer evenings by the pool, this is Hamptons living with space, comfort, and exceptional waterfront access—without compromise.

  • Houzeo last checked: 4 minutes ago
  • Listing updated: October 7, 2026 at 11:06 am
  • Listing Provided by: Matthew Hart (631) 961-4626 | World Prop Intl Sea to Sky (631) 961-4626
  • Source: OneKey MLS-NY | MLS#: 847747 OneKey MLS-NY

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    -

  • County

    Suffolk County

  • City

    Southampton

  • Neighborhood

    --

  • Year Built

    1978

  • HOA Fees

    $83.33/mo

  • Finished Area

    4,263 sqft

  • Lot Size

    21,780 sqft lot

  • Basement Area

    - sqft

  • MLS Name

    OneKey MLS

  • MLS Number

    847747

  • MLS Status

    Active

  • Days on Market

    540

  • Cumulative Days on Market

    539

Open House

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Location

HOA Management

N/A

HOA Fees

$1,000/ Annually

Disclaimer: Amenities are based on third-party information and may vary; buyers must independently verify all amenities, as information is deemed reliable but not guaranteed.

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 5

    Bathrooms: 5

Interior

  • Exterior Features

    Boat Slip, Dock

  • Appliances

    Dishwasher, Dryer, Range, Refrigerator, Washer

  • Sewer

    Cesspool

  • Heating

    Oil

  • Interior Features

    First Floor Bedroom, First Floor Full Bath, Cathedral Ceiling(s), Eat In Kitchen, Entrance Foyer, Formal Dining, Kitchen Island, Primary Bathroom, Walk In Closet(s)

  • Cooling

    Central Air

  • Flooring

    Tile, Wood

Construction

  • Year Built

    Year Built: 1978

  • Home type

    Single Family Residence

  • Architectural Style

    Traditional

  • Construction Materials

    Frame

Utilities & Energy

  • Parking Features

    Attached, Driveway, Garage

  • Laundry Features

    Laundry Room

  • Utilities

    Electricity Connected

  • Water Source

    Public

Other Features

  • Patio And Porch Features

    Deck, Patio, Porch

Price History

DateEventPrice

04/16/2025

Source: mls_logoOneKey MLS-NY #KEY847747

Price Increased

$2,499,900 +4.17%

$586/sqft

04/16/2025

Source: mls_logoOneKey MLS-NY #KEY847747

Listed for Sale

$2,399,900

$563/sqft

Nearby Homes

Based on information from OneKey MLS, through Oct 09, 2026, 06:46AM. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. © 2026 OneKey® MLS. All rights reserved.

Advertising Broker: Derek Greene | The Greene Realty Group