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.
Pending
$859,000
25 Bay 3rd Street, Islip, NY 11751
3beds
2,136sqft
Single Family Residence, Residential
Built in 1927
8,586 Square Feet Lot
$-- Zestimate®
$402/sqft
$-- HOA
What's special
Abundant natural lightNew roofCentral air conditioningIn-ground heated poolNew paver patioGenerously sized bedroomsAttached garage
- 27 days |
- 3,763 |
- 199 |
Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Compass Greater NY LLC 631-629-7719,
Diane Betz 631-241-0298
Source: OneKey® MLS as distributed by MLS GRID,MLS#: 988807
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 3
- Full bathrooms: 3
Primary bedroom
- Description: High vaulted cathedral ceiling featuring tall arched window, WIC, primary bath ensuite, wood floors
- Level: Second
Bedroom 2
- Description: Wood floors (under carpeting), 2 large south facing windows, closet
- Level: Second
Bedroom 3
- Description: Wood floors (under carpeting), large north facing window, closet
- Level: Second
Primary bathroom
- Description: Large primary bath featuring soaking tub, walk-in shower, vanity, closet, toilet
- Level: Second
Bathroom 1
- Description: Full Bath featuring pedestal sink, shower, tub, toilet
- Level: First
Bathroom 2
- Description: Second floor guest bathroom featuring a sliding glass shower enclosure, a vanity w/ base cabinetry, closet, a wall-mounted mirror, tile flooring
- Level: Second
Other
- Description: 1 car attached garage w/electric opener, 2 car remotes
- Level: First
Other
- Description: Outdoor Cabana w/bar & electric, water hook up available, glass slider, storage
- Level: First
Other
- Description: In-Ground 18 x 36 free form pool, chlorine, new liner (2026), gas heater (2021), loop loc cover, new pump motor, new polaris pump (2026), new pool plumbing (2026), new pavered patio (2026), In-ground sprinkler system (3 zones), new landscaping front and back
- Level: First
Other
- Description: New roof (2025), new hot water heater (2019), Kohler 14kW hard wired generator in weather enclosure, house wired for Fios & Optimum
- Level: First
Basement
- Description: Partially finished, recessed lighting, heated and cooled, boiler, hot water heater, storage, washer, dryer, 200 amp electric panel
- Level: Basement
Dining room
- Description: Wood floors, large south facing bay window, light fixture
- Level: First
Kitchen
- Description: SS Apps, white cabinetry, recessed lighting, door to country club backyard
- Level: First
Living room
- Description: Wood floors, French doors to deck and backyard, floor to ceiling windows w/views of country club backyard
- Level: First
Heating
- Natural Gas
Cooling
- Central Air, Zoned
Appliances
- Included: Dishwasher, Dryer, Freezer, Gas Cooktop, Gas Range, Microwave, Oven, Range, Refrigerator, Stainless Steel Appliance(s), Washer, Gas Water Heater
- Laundry: Washer/Dryer Hookup, Electric Dryer Hookup, In Basement, Washer Hookup
Features
- Cathedral Ceiling(s), Primary Bathroom, Storage
- Flooring: Hardwood, Other
- Windows: Double Pane Windows
- Basement: Partially Finished,Storage Space
- Attic: Partial,Unfinished
- Has fireplace: No
Interior area
- Total structure area: 2,136
- Total interior livable area: 2,136 sqft
Property
Parking
- Total spaces: 1
- Parking features: Attached, Driveway, Garage, On Street
- Garage spaces: 1
- Has uncovered spaces: Yes
Features
- Levels: Three Or More
- Patio & porch: Patio, Porch
- Exterior features: Rain Gutters
- Has private pool: Yes
- Pool features: Fenced, In Ground, Outdoor Pool, Pool Cover, Vinyl
- Fencing: Back Yard,Fenced,Vinyl
- Has view: Yes
- View description: Neighborhood, Trees/Woods
Lot
- Size: 8,586 Square Feet
- Dimensions: 81 x 106
- Features: Back Yard, Front Yard, Landscaped, Level, Near Shops, Private, Sprinklers In Front, Sprinklers In Rear
Details
- Additional structures: Cabana, Pool House
- Parcel number: 0500397000200015000
- Special conditions: None
- Other equipment: Generator, Irrigation Equipment, Pool Equip/Cover
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence, Residential
Materials
- Vinyl Siding
Condition
- Updated/Remodeled
- Year built: 1927
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Cable Connected, Electricity Connected, Natural Gas Connected, Sewer Connected, Trash Collection Public, Water Connected
Community & HOA
Community
- Features: Curbs, Park
- Security: Security System
- Subdivision: South of Montauk
HOA
- Has HOA: No
Location
- Region: Islip
Financial & listing details
- Price per square foot: $402/sqft
- Tax assessed value: $40,000
- Annual tax amount: $14,179
- Date on market: 6/3/2026
- Cumulative days on market: 26 days
- Listing agreement: Exclusive Right To Sell
- Electric utility on property: Yes
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/26/2026 | Pending sale | $859,000$402/sqft |
Source:  OneKey® MLS as distributed by MLS GRID #988807 Report a problem | ||
| 6/3/2026 | Listed for sale | $859,000+66.8%$402/sqft |
Source: OneKey® MLS as distributed by MLS GRID #988807 Report a problem | ||
| 9/22/2016 | Sold | $515,000+3.2%$241/sqft |
Source: OneKey® MLS as distributed by MLS GRID #L2859687 Report a problem | ||
| 11/2/2014 | Listing removed | $499,000$234/sqft |
Source: Eric G. Ramsay Jr. Associate LLC #2715091 Report a problem | ||
| 10/21/2014 | Listed for sale | $499,000$234/sqft |
Source: Eric G. Ramsay Jr. Associate LLC #2715091 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | -- | $40,000 |
| 2024 | -- | $40,000 |
| 2023 | -- | $40,000 |
| 2022 | -- | $40,000 |
| 2021 | -- | $40,000 |
| 2020 | -- | $40,000 |
| 2019 | -- | $40,000 |
| 2018 | -- | $40,000 |
| 2017 | $11,520 | $40,000 |
| 2016 | -- | $40,000 |
| 2015 | -- | $40,000 |
| 2014 | -- | $40,000 |
| 2013 | -- | $40,000 |
| 2012 | -- | $40,000 |
| 2011 | -- | $40,000 |
| 2010 | -- | $40,000 |
| 2009 | -- | $40,000 |
| 2008 | -- | $40,000 |
| 2007 | $8,054 +18.9% | $40,000 |
| 2005 | $6,776 +11% | $40,000 +2.6% |
| 2004 | $6,107 +7.6% | $39,000 |
| 2003 | $5,673 +7.3% | $39,000 |
| 2002 | $5,287 | $39,000 |
| 2001 | -- | $39,000 +4% |
| 2000 | $4,895 | $37,500 |
Find assessor info on the county website
Monthly payment
Estimated monthly payment$1,822
All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Climate risks
Neighborhood: 11751
Nearby schools
GreatSchools rating
- 6/10Maud S Sherwood Elementary SchoolGrades: 2-5Distance: 0.5 mi
- 5/10Islip Middle SchoolGrades: 6-8Distance: 0.8 mi
- 7/10Islip High SchoolGrades: 9-12Distance: 0.8 mi
Schools provided by the listing agent
- Elementary: Maud S Sherwood Elementary School
- Middle: Islip Middle School
- High: Islip High School
Source: OneKey® MLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
- New York
- Suffolk County
- Islip
- 11751
- 25 Bay 3rd Street
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