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.
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Zillow last checked:
Listed by:
World Properties Int'l Sea to Sky Realty917-202-8386,
Matthew Hart - Real Estate Broker917-202-8386
Source: Out East,MLS#: 388106
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Facts & features
Interior
Bedrooms & bathrooms
Bedrooms: 5
Bathrooms: 5
Full bathrooms: 4
1/2 bathrooms: 1
Rooms
Room types: Family Room, Laundry, Office
Cooling
Central Air
Features
Basement: No
Has fireplace: Yes
Interior area
Total structure area: 4,263
Total interior livable area: 4,263 sqft
Property
Parking
Parking features: GarageAttached
Has attached garage: Yes
Features
Stories: 2
Has private pool: Yes
Has view: Yes
View description: Water
Has water view: Yes
Water view: Water
Waterfront features: Waterfront
Frontage type: Waterfront
Lot
Size: 0.5 Acres
Details
Parcel number: 0900322000200018000
Construction
Type & style
Home type: SingleFamily
Property subtype: Single Family Residence
Condition
New construction: No
Year built: 1978
Community & HOA
Location
Region: Hampton Bays
Financial & listing details
Price per square foot: $563/sqft
Tax assessed value: $1,229,400
Date on market: 4/22/2025
Lease term: Contact For Details
Estimated market value
Zestimate®
$2,225,600
Estimated sales range
$2.11M - $2.34M
Rent Zestimate®
$7,339/mo
Price history
Date
Event
Price
5/28/2025
Price change
$2,399,900-4%$563/sqft
Source: OneKey® MLS as distributed by MLS GRID #847747Report a problem
4/16/2025
Listed for sale
$2,499,900+532.9%$586/sqft
Source: OneKey® MLS as distributed by MLS GRID #847747Report a problem
All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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