24 William Avenue Islip, NY $ 829,999
24 William Avenue
$ 829,999
Recently Listed
Open House 10/3 12pm - 2pm
Share Save

24 William Avenue

Islip, NY, 11751
$ 829,999
Bedrooms5 Baths2.1 Sq 2,258

Monthly Estimate*

$ 5,241

24 William Avenue, Islip, NY 11751 - Image 1
24 William Avenue, Islip, NY 11751 - Image 2
24 William Avenue, Islip, NY 11751 - Image 3
24 William Avenue, Islip, NY 11751 - Image 4
24 William Avenue, Islip, NY 11751 - Image 5
24 William Avenue, Islip, NY 11751 - Image 6
24 William Avenue, Islip, NY 11751 - Image 7
24 William Avenue, Islip, NY 11751 - Image 8
24 William Avenue, Islip, NY 11751 - Image 9
24 William Avenue, Islip, NY 11751 - Image 10
24 William Avenue, Islip, NY 11751 - Image 11
24 William Avenue, Islip, NY 11751 - Image 12
24 William Avenue, Islip, NY 11751 - Image 13
24 William Avenue, Islip, NY 11751 - Image 14
24 William Avenue, Islip, NY 11751 - Image 15
24 William Avenue, Islip, NY 11751 - Image 16
24 William Avenue, Islip, NY 11751 - Image 17
24 William Avenue, Islip, NY 11751 - Image 18
24 William Avenue, Islip, NY 11751 - Image 19
24 William Avenue, Islip, NY 11751 - Image 20
24 William Avenue, Islip, NY 11751 - Image 21
24 William Avenue, Islip, NY 11751 - Image 22
24 William Avenue, Islip, NY 11751 - Image 23
24 William Avenue, Islip, NY 11751 - Image 24
24 William Avenue, Islip, NY 11751 - Image 25
24 William Avenue, Islip, NY 11751 - Image 26
24 William Avenue, Islip, NY 11751 - Image 27
24 William Avenue, Islip, NY 11751 - Image 28
24 William Avenue, Islip, NY 11751 - Image 29
View a Virtual Tour

Single Family Home for sale in Islip, NY

for $829,999 with 5 bedrooms and 2 full baths, 1 half bath. This 2,258 square foot home was built in 2006 on a lot size of 0.17.

Welcome to this beautiful, move-in-ready 5-bedroom, 2 1/2 bath Colonial, quietly tucked away on a dead-end street in the Islip School District. With thoughtful updates, generous living space, and exceptional amenities, this home offers room for everyone and plenty of flexibility. The second floor features four bedrooms, including a spacious primary suite with a private en-suite bath, Jacuzzi tub, and glass-enclosed walk-in shower. A versatile fifth bedroom on the main level can serve as a first-floor primary, home office, playroom, or guest space. The large eat-in kitchen features a breakfast bar and opens into an expansive adjoining room with a beautiful gas fireplace, currently being used as the dining area. Sliding doors lead directly to the spectacular backyard, making entertaining effortless. Step outside to your own private oasis — professionally landscaped and fully fenced, with a stunning built-in outdoor kitchen featuring a grill, refrigerator, sink, and lift TV cabinet. It’s the perfect setting for summer entertaining! Additional highlights include a full finished basement with outside entrance, utilities and abundant storage, upstairs laundry, pull-down attic storage, two-zone heating, central air, natural gas, 200-amp electric, in-ground sprinklers, whole-house intercom, alarm system, ceiling fans in all bedrooms, and outdoor speakers. The 1 1/2 car detached garage includes an intercom and EV charger. Enjoy a small covered balcony off one of the upstairs bedrooms — a charming spot to step outside and relax. Ideally located near schools, parks, beaches, shopping, the LIRR, and major highways, this exceptional home combines privacy and convenience. Come experience this special home — the space, the privacy, and the incredible outdoor living are waiting for you!

See more

Open House

10/3/2026 12:00 PM - 2:00 PM
24 William Avenue 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

$ 829,999

Bedrooms

5

Full Bath

2

Half Bath

1

Property Type

Single Family

Taxes

$ 16,435

Style

Colonial

Lot Size

0.17

Year Built

2006

Town/City

Islip

County/Region

Suffolk

MLS | Web ID

1051841

Features
Interior
Interior Amenities First Floor Bedroom Breakfast Bar Ceiling Fan(s) Central Vacuum Eat-in Kitchen Entrance Foyer Granite Counters Kitchen Island Open Floorplan Open Kitchen Pantry Primary Bathroom Master Downstairs Soa
Basement Full Walk-Out Access
Flooring Ceramic Tile Hardwood Laminate
Total Fireplaces 1
Fireplace Features Gas
Basement Features Full Walk-Out Access
Basement (Y/N) Y
Window Features Double Pane Windows
Fireplace Y/N Y
Half Baths 1
Total Bedrooms 5
Total Baths 3
See more
General
Sewer Public Sewer
Heating Hot Air Natural Gas
Cooling Central Air
Utilities Electricity Available Sewer Connected Trash Collection Public Water Connected
Appliances Dishwasher Disposal Exhaust Fan Freezer Gas Cooktop Gas Oven Microwave Refrigerator Stainless Steel Appliance(s) Trash Compactor Gas Water Heater
Garage Spaces 1
Patio/Porch Features Covered Deck
Architectural Style Colonial
Security Features Fire Alarm Security System Smoke Detector(s)
Construction Materials Brick Vinyl Siding
Exclusions Washer Refrigerator and Generator
Year Built 2006
View Neighborhood
Property Subtype Single Family Residence
Tax Year 2026
Parcel Number 0500-319-00-03-00-083-012
County Suffolk County
Property Type Residential
HOA N
Facing Direction East
Garage Y/N Y
Other Structures Garage(s) Gazebo Outdoor Kitchen Shed(s)
Total Rooms 8
Full Baths 2
Directions Main Street to RT 111 Islip Ave North Left on Spruce Left on William to number 24.
High School Islip High School
City Islip
Disclosures Lead Paint Other Disclosures
Senior Community Y/N N
High School District Islip
Carport Y/N N
Elementary School Wing Elementary School
Property Attached Y/N N
Tax Annual Amount 16435.46
Middle/Junior High School Islip Middle School
Property Condition Actual
Virtual Tour https://tours.requesttours.com/24-William-Ave/idx https://tours.requesttours.com/24-William-Ave
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Islip
Elementary School District Islip
Tax Assessed Value 46000
Tax Lot 83012
See more
Exterior
Exterior Amenities Balcony Garden Gas Grill Mailbox Speakers
Fencing Back Yard Fenced Vinyl
Parking Features Driveway Electric Vehicle Charging Station(s) Garage Garage Door Opener On Street Driveway Electric Vehicle Charging Station(s) Garage Garage Door Opener On Street
Water Source Public
Foundation Details Concrete Perimeter
Spa N
Building Area Total 2665
Waterfront Y/N N
Door Features Storm Door(s)
Other Equipment Intercom
Horse Y/N N
See more
Internal Only
Street Number 1 24
See more
* Excluded Features
List By
Annie L. Bos Greene

Listing Agent

Netter Real Estate Inc

Broker

631-661-5100

Contact

Affordability Calculator

$6,610
Per Month
79%
21%
0%
Monthly Principal & Interest
$5,241
Monthly Property Taxes
$1,370
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

Discover how much house you can afford

Your dream home may be within reach.

Learn More about how to save

The time to sell is now
THE TIME TO SELL IS NOW! What's my home worth?
Nearby
4099187 Elementary School
4101461 Middle School
Islip High School High School
Pricing History
DatePricePrice ChangeDescription
9/16/2026$829,999 Listed Price

Map


See all

24 William Avenue, Islip, NY, 11751 is a Single Family Home for sale at $829,999 with 2,258 sqft and a lot size of 0.17. 24 William Avenue has 5 bedrooms, 2.1 baths, and was built in 2006. The property's zip code is 11751 which is in Islip, NY