25 Bay 3rd Street Islip, NY $ 859,000
25 Bay 3rd Street
$ 859,000
Recently Listed
Open House 6/6 1:30pm - 3pm
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25 Bay 3rd Street

Islip, NY, 11751
$ 859,000
Bedrooms3 Baths3.0 Sq 2,136

Monthly Estimate*

$ 5,289

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Single Family Home for sale in Islip, NY

for $859,000 with 3 bedrooms and 3 full baths. This 2,136 square foot home was built in 1927 on a lot size of 0.19.

Welcome to 25 Bay 3rd Street, Islip — A Beautifully Updated Colonial South of Montauk perfectly positioned on a quiet tree-lined street within biking distance to Islip town beach and vibrant downtown main street. This beautifully renovated Colonial offers timeless charm, modern updates, and exceptional indoor-outdoor living. Featuring over 2,100 square feet of living space, this 3-bedroom, 3-bath home welcomes you with soaring cathedral ceilings, abundant natural light, hardwood floors, and an open, airy layout designed for comfortable everyday living and entertaining. The updated kitchen boasts stainless steel appliances, gas cooking, recessed lighting, and direct access to the backyard oasis. The spacious primary suite offers vaulted ceilings, a walk-in closet, and a luxurious ensuite bath complete with a soaking tub and separate shower. Two additional generously sized bedrooms and a beautifully updated guest bath complete the second floor. Step outside and enjoy your private resort-style backyard featuring an in-ground heated pool, outdoor cabana/pool house, bar area, new paver patio, professionally landscaped grounds, and in-ground sprinklers. Recent improvements include a new roof, new hot water heater, updated pool equipment, new pool liner, new paver patio, and a whole-house Kohler generator, providing peace of mind for years to come. Additional highlights include central air conditioning, natural gas heating, partially finished basement with storage, attached garage, security system, and public sewer. Located in the highly desirable South of Montauk section of Islip, close to shops, restaurants, marinas, parks, beaches, and vibrant downtown Islip. Move right in and enjoy the perfect blend of classic character, modern updates, and exceptional outdoor living.

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Open House

6/6/2026 1:30 PM - 3:00 PM
6/7/2026 11:00 AM - 12:30 PM
25 Bay 3rd Street Islip, NY
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 859,000

Bedrooms

3

Full Bath

3

Property Type

Single Family

Taxes

$ 14,179

Style

Colonial

Lot Size

0.19

Year Built

1927

Town/City

Islip

County/Region

Suffolk

MLS | Web ID

988807

Features
Interior
Interior Amenities Cathedral Ceiling(s) Primary Bathroom Storage Washer/Dryer Hookup
Basement Partially Finished Storage Space
Flooring Hardwood Other
Basement Features Partially Finished Storage Space
Basement (Y/N) Y
Window Features Double Pane Windows
Fireplace Y/N N
Half Baths 0
Total Bedrooms 3
Total Baths 3
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General
Sewer Public Sewer
Heating Natural Gas
Cooling Central Air Zoned
Utilities Cable Connected Electricity Connected Natural Gas Connected Sewer Connected Trash Collection Public Water Connected
Appliances Dishwasher Dryer Freezer Gas Cooktop Gas Range Microwave Oven Range Refrigerator Stainless Steel Appliance(s) Washer Gas Water Heater
Garage Spaces 1
Patio/Porch Features Patio Porch
Architectural Style Colonial
Pool Features Fenced In Ground Outdoor Pool Pool Cover Vinyl
Security Features Security System
Construction Materials Vinyl Siding
Year Built 1927
View Neighborhood Trees/Woods
Property Subtype Single Family Residence
Tax Year 2025
Parcel Number 0500-397-00-02-00-015-000
Community Features Curbs Park
County Suffolk County
Property Type Residential
HOA N
Subdivision Name South of Montauk
Facing Direction South
Garage Y/N Y
Other Structures Cabana Pool House
Total Rooms 10
Full Baths 3
Directions Montauk Hwy east right onto S Bay left onto Bay Third house on left (north) side
High School Islip High School
City Islip
Disclosures Lead Paint Seller Property Disclosure
Senior Community Y/N N
High School District Islip
Carport Y/N N
Elementary School Maud S Sherwood Elementary School
Property Attached Y/N N
Tax Annual Amount 14179
Middle/Junior High School Islip Middle School
Property Condition Updated/Remodeled
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Islip
Elementary School District Islip
Tax Assessed Value 40000
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Exterior
Exterior Amenities Rain Gutters
Fencing Back Yard Fenced Vinyl
Parking Features Attached Driveway Garage On Street Attached Driveway Garage On Street
Water Source Public
Spa N
Building Area Total 2136
Waterfront Y/N N
Other Equipment Generator Irrigation Equipment Pool Equip/Cover
Horse Y/N N
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Internal Only
Street Number 1 25
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* Excluded Features
List By
Diane Betz

Listing Agent

Compass Greater Ny Llc

Broker

631-241-0298

Contact

Affordability Calculator

$6,471
Per Month
82%
18%
0%
Monthly Principal & Interest
$5,289
Monthly Property Taxes
$1,182
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% 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.
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Nearby
4099957 Elementary School
4101461 Middle School
Islip High School High School
Pricing History
DatePricePrice ChangeDescription
6/3/2026$859,000 Listed Price

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25 Bay 3rd Street, Islip, NY, 11751 is a Single Family Home for sale at $859,000 with 2,136 sqft and a lot size of 0.19. 25 Bay 3rd Street has 3 bedrooms, 3.0 baths, and was built in 1927. The property's zip code is 11751 which is in Islip, NY