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.
For sale
$2,399,900
20 Oak Ln, Hampton Bays, NY 11946
5beds
4,263sqft
Single Family Residence
Built in 1978
0.5 Acres Lot
$2,190,200 Zestimate®
$563/sqft
$-- HOA
What's special
Recently relined poolWaterfront retreatPrivate backyard oasisGenerous island prep spaceExpansive deckMultiple gathering areasShared jack-and-jill bath
- 537 days
- 436
- 36
Zillow last checked:
Listed by:
World Properties Int'l Sea to Sky Realty 917-202-8386,
Matthew Hart - Real Estate Broker 917-202-8386
Source: Out East,MLS#: 388106
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
$2,190,200
$2.06M - $2.30M
$8,326/mo
Price history
| Date | Event | Price |
|---|---|---|
| 5/28/2025 | Price change | $2,399,900-4%$563/sqft |
Source: | ||
| 4/16/2025 | Listed for sale | $2,499,900+532.9%$586/sqft |
Source: | ||
| 3/19/1997 | Sold | $395,000$93/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | -- | $1,229,400 |
| 2024 | -- | $1,229,400 |
| 2023 | -- | $1,229,400 |
| 2022 | -- | $1,229,400 |
| 2021 | -- | $1,229,400 |
| 2020 | -- | $1,229,400 |
| 2019 | -- | $1,229,400 +6.6% |
| 2018 | -- | $1,153,800 |
| 2017 | $10,090 | $1,153,800 -2.1% |
| 2016 | -- | $1,178,600 -2.5% |
| 2015 | -- | $1,208,600 0% |
| 2014 | -- | $1,209,100 |
| 2013 | -- | $1,209,100 0% |
| 2012 | -- | $1,209,200 |
| 2011 | -- | $1,209,200 -10% |
| 2010 | -- | $1,343,400 |
| 2009 | -- | $1,343,400 +0.3% |
| 2008 | -- | $1,338,800 |
| 2007 | $14,335 +67.4% | $1,338,800 +74.6% |
| 2005 | $8,562 +7.6% | $766,576 +5386.5% |
| 2004 | $7,954 +11.1% | $13,972 |
| 2003 | $7,161 +8.6% | $13,972 |
| 2002 | $6,594 +7% | $13,972 |
| 2001 | $6,163 +4.1% | $13,972 |
| 2000 | $5,919 | $13,972 |
Find assessor info on the county website





