Open House 10/11 1pm - 3pm
27 Ontario Street
Ocean Bay Park, NY, 11770 $ 1,699,000
Bedrooms4 Baths2.0 Sq 1,644 Monthly Estimate*
$ 10,728
for $1,699,000 with 4 bedrooms and 2 full baths. This 1,644 square foot home was built in 1970 on a lot size of 0.23.
Classic Fire Island charm meets endless potential in this spacious 4-bedroom, 2-bath beach cottage in the heart of Ocean Bay Park. Set on an oversized 100x100 lot and just moments from the ocean, this home offers the kind of easy coastal living that makes summers here so special — with plenty of room for a pool. Designed with a unique and functional layout, the home features two bedrooms and a full bath on one wing, while the opposite side offers two additional bedrooms and another full bath — all centered around a bright, open living space. A sunken living room adds character and creates a natural gathering spot, flowing into the kitchen and dining area for relaxed entertaining. With both front and back decks, there’s plenty of room to enjoy sunny afternoons, outdoor dining, and cool summer nights. Full of classic beach house charm, this is a rare opportunity to own a timeless Fire Island cottage on an oversized property, ready to be enjoyed as-is or reimagined over time.
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Open House
10/11/2026 1:00 PM - 3:00 PM
27 Ontario Street Ocean Bay Park, NY
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm
FeaturesInteriorInterior Amenities First Floor Bedroom First Floor Full Bath Beamed Ceilings Breakfast Bar Eat-in Kitchen High Ceilings
Basement (Y/N) N
Half Baths 0
Total Bedrooms 4
Total Baths 2
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GeneralSewer Cesspool
Heating Other
Cooling Ductless
Utilities Cable Connected Electricity Connected
Appliances Convection Oven Cooktop
Architectural Style Bungalow
Construction Materials Wood Siding
Year Built 1970
Property Subtype Single Family Residence
Tax Year 2025
Parcel Number 0200-985-70-05-00-016-000
County Suffolk County
Property Type Residential
HOA N
Garage Y/N N
Total Rooms 5
Full Baths 2
High School Islip High School
City Brookhaven
Senior Community Y/N N
High School District Islip
Carport Y/N N
Elementary School Woodhull School
Property Attached Y/N N
Tax Annual Amount 3473
Middle/Junior High School Islip Middle School
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Islip
Elementary School District Fire Island
Tax Assessed Value 1900
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ExteriorParking Features None None
Water Source Public
Building Area Total 1644
Waterfront Y/N N
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* Excluded FeaturesList ByJoan WoletskyListing Agent
The Agency Northshore NyBroker
Affordability Calculator
- Monthly Principal & Interest
- $10,728
- Monthly Property Taxes
- $289
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Ocean Bay Park, NY
Average List Price $2,611,083
Percent of Sale Price 54%
Trends Information provided by ATTOM Data Solutions.
5169284 Elementary School
4101461 Middle School
Islip High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 10/2/2026 | $1,699,000 | -5.56% | Price Down |
| 7/2/2026 | $1,799,000 | -41.95% | Price Down |
| 7/2/2026 | $3,099,000 | | Listed Price |