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$859,000 Sale Pending

  • For Sale
  • Pending
  • Single Family
  • 3 Beds
  • 3 Full Baths
  • 2,136 Sq. Ft.
  • 1 Car Garage
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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.

Full Property Details for 25 Bay 3rd St

General

  • Price: $859,000
  • Taxes: $14,179
  • Status: Pending
  • Type: Single Family
  • Source: Long_Island
  • MLS ID: 988807
  • Updated: 6/26/2026
  • Added to Site: 40 day(s) ago

Interior

  • Number of Rooms: 10
  • Interior Features: Cathedral Ceiling(s), Primary Bathroom, Storage, Washer/Dryer Hookup
  • Appliances: Dishwasher, Dryer, Freezer, Gas Cooktop, Gas Range, Microwave, Oven, Range, Refrigerator, Stainless Steel Appliance(s), Washer, Gas Water Heater
  • Laundry Facilities: Yes
  • Flooring: Hardwood, Other

Rooms

Bathrooms

  • Total Bathrooms: 3
  • Full Bathrooms: 3

Bedrooms

  • Total Bedrooms: 3

Other Rooms

  • Laundry: Electric Dryer Hookup, In Basement, Washer Hookup

Additional Information

  • Amenities: Curbs, Park
  • Pool: Yes
  • Private Pool: Yes
  • Pool Description: Fenced, In-Ground, Outdoor Pool, Pool Cover, Vinyl
  • Security/Safety: Security System

Exterior

  • Exterior Features: Rain Gutters
  • Porch/Patio/Deck: Patio, Porch

Parking

  • Garage: Yes
  • Garage Spaces: 1
  • Parking Features: Attached, Driveway, Garage, On Street

Location

  • County: Suffolk County
  • Subdivision: South of Montauk
  • Neighborhood: Islip
  • Cross Streets: South Bay
  • Driving Directions: Montauk Hwy east, right onto S Bay, left onto Bay Third, house on left (north) side
  • Direction Faces: South

School Information

  • High School District: Islip
  • Elementary School: Maud S Sherwood Elementary School
  • Middle School: Islip Middle School
  • High School: Islip High School

Heating & Cooling

  • Central air: Yes
  • Cooling Type: Central Air, Zoned
  • Heating Type: Natural Gas
  • Heating Zones: 4

Utilities

  • Sewer: Public Sewer
  • Water: Public
  • Utility Description: Cable Connected, Electricity Connected, Natural Gas Connected, Sewer Connected, Trash Collection Public, Water Connected

Structural Information

  • Architectural Style: Colonial
  • Detached/Attached: Detached
  • Construction: Vinyl Siding
  • Basement: Yes
  • Basement Desc.: Partially Finished, Storage Space
  • Unfinished Attic: Yes
  • Windows: Double Pane Windows
  • Building Size: 2136
  • Square Feet: 2,136
  • Sq. Ft. Source: Public Records
  • Year Built: 1927

Additional Structures

  • Other Structures: Cabana, Pool House

Lot Features

  • Property View: Neighborhood, Trees/Woods
  • Lot Size (Acres): 0.19
  • Lot Size (Sq. Ft.): 8,586
  • Lot Dimensions: 81 x 106
  • Fence: Yes
  • Lot Features: Back Yard, Front Yard, Landscaped, Level, Near Shops, Private, Sprinklers In Front, Sprinklers In Rear
  • Fencing (Description): Back Yard, Fenced, Vinyl

Financial Considerations

  • Taxes Include: Trash
  • Tax Amount: $14,179

Disclosures and Reports

  • Special Conditions: None
  • Property ID: 0500-397-00-02-00-015-000

Listed by Compass Greater NY LLC

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Listing agent

— 25 Bay 3rd St —

  • Compass Greater NY LLC

631-241-0298

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 25 Bay 3rd St

School District:Islip Union Free School District
NameGradesDistance
Maud S Sherwood Elementary School
301 Smith Avenue, Islip, NY 11751
2-50.5 mi
Wing Elementary School
1 Winganhauppauge Road, Islip, NY 11751
K-11.2 mi
Commack Road Elementary School
300 Commack Road, Islip, NY 11751
2-51.6 mi
Islip Middle School
211 Main Street, Islip, NY 11751
7-80.8 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 25 Bay 3rd St Get Price Alerts and Save Property

Date
Details
Price
Change
Source
6/03/2026
Listed
$859,000
66.8%
MLS
9/22/2016
Sold
$515,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 25 Bay 3rd St

Year
Property Taxes
Change
Tax Assessment
Change
2024
$13,177
100%
$40,000
—
2020
100%
$40,000
—
2022
-100%
$40,000
—
2016
$11,520
-7%
$40,000
—
2020
$12,401
3%
$40,000
—
2018
$12,060
1%
$40,000
—
2017
$11,966
12%
$40,000
—
2016
$10,721
—
$40,000
—
2015
$10,746
2%
$40,000
—
2015
$10,577
2%
$40,000
—
2014
$10,321
4%
$40,000
—
2013
$9,939
—
$40,000
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost for 25 Bay 3rd St

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Down Payment
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*These costs are estimates, and the interest rates assume exceptional credit standing.

Listed by Compass Greater NY LLC

25 Bay 3rd Street, Islip, NY 11751 (MLS# 988807) is a Single Family property with 3 bedrooms and 3 full bathrooms. 25 Bay 3rd Street is currently listed for $859,000 and was received on June 03, 2026. Want to learn more about 25 Bay 3rd Street? Do you have questions about finding other Single Family real estate for sale in Islip? You can browse all Islip real estate or contact a Coldwell Banker agent to request more information.

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