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MLS ID KEY1032772Last updated Oct 25, 2026

Single Family

170 Penataquit Avenue

Active · Islip · Suffolk County, NY 11706

Bedrooms
3 Beds
Bathrooms
3 Baths
Year built
1983
Est. monthly taxes
$4,514.83
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About this home

SPECTACULAR 2.75-ACRE WATERFRONT CONTEMPORARY ESTATE A truly rare opportunity to own an extraordinary privately gated 3,800 sq. ft. waterfront estate set on 2.75 breathtaking acres with over 1,000 feet of bulkhead and spectacular water views. Step through the grand double glass doors into a stunning open-concept interior featuring soaring windows, beautiful ceramic flooring, and a magnificent chandelier overlooking the water. The home offers 3 bedrooms, 3 bathrooms, a second-floor loft, dining room, living room with fireplace, and a 3-car garage.The fabulous chef’s kitchen features custom wood cabinetry, a large granite island, and professional Wolf and Verona stainless-steel appliances. The luxurious primary en-suite offers a spa bath, walk-in closet, glass doors with balcony and deck with bay views, elevator access, along with a convenient second-floor laundry room. The waterfront lifestyle is truly exceptional, offering over 1,000 feet of bulkhead, a large boat slip accommodating two 65-foot yachts, a boat ramp, and a dedicated cut-out for multiple jet skis. A spacious boathouse and waterfront gazebo provide the perfect setting for enjoying the water, while a beautiful patio and pergola create an ideal space for outdoor entertaining and relaxation. Take in breathtaking sunsets with picturesque views of the Robert Moses Bridge. Additional amenities include a full-house generator, 27-zone sprinkler system, and an on-demand tankless hot water heater. Perfectly positioned approximately 60 minutes by LIRR to NYC for world-class dining, entertainment and shows, and approximately 60 minutes to the Hamptons and its renowned wineries. From your own home or the nearby local ferries, enjoy a quick 20 minute ride to Fire Island's Ocean Beach and other sought after destinations, where you can spend the day exploring charming shops, enjoying waterfront dining and live music, or relaxing on the beautiful white sand beaches. It's the perfect blend of waterfront living, convenience, and the quintessential Fire Island lifestyle. Conveniently located near shopping, transportation and everyday amenities. A magnificent waterfront estate. An extraordinary lifestyle. A rare opportunity. Call today for your private showing.

Listing snapshot

Days on site
51 days
Listed on MLS
Sep 4, 2026
Full baths
3
Half baths
0
Annual property tax (MLS)
$54,178
Tax year
2026
Area source (MLS)
Public Records
Listing brokerage
Douglas Elliman Real Estate
MLS ID
KEY1032772
Last updated
Oct 25, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
1983
Garage
Yes
Garage spaces
3
Parking
Driveway, Garage
Water source
Public
Sewer
Public Sewer
Utilities
Electricity Connected, Natural Gas Connected, Sewer Connected, Trash Collection Public, Underground Utilities, Water Connected

Interior features

Basement
None
Heating
Forced Air
Cooling
Central Air
Interior
First Floor Bedroom, First Floor Full Bath, Chefs Kitchen, Eat-in Kitchen, Open Floorplan, Open Kitchen
Appliances
Dishwasher, Gas Range
Flooring
Carpet, Ceramic Tile, Hardwood
Fireplace
Yes
Fireplaces
1

Exterior features

Architectural style
Contemporary
Construction materials
Frame
Exterior
Balcony, Boat Slip, Dock, Lighting, Mailbox
Private pool
No

Schools (MLS)

Elementary school
Brook Avenue Elementary School
Elementary school district
Bay Shore
Middle school
Bay Shore Middle School
Middle school district
Bay Shore
High school
Bay Shore Senior High School
High school district
Bay Shore

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

Islip · Suffolk County, NY 11706Show interactive map
170 Penataquit Avenue

Islip · Suffolk County, NY 11706

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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)
MLS amounts are prefilled when available and can be edited. Confirm what fees include. Unknown fee frequencies cannot be converted automatically.Property expenses: MLS values where available; missing values stay blank.

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.