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MLS ID KEY1051841Last updated Oct 12, 2026

Single Family

24 William Avenue

Pending · Islip · Suffolk County, NY 11751

Bedrooms
5 Beds
Bathrooms
3 Baths
Year built
2006
Est. monthly taxes
$1,369.62
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About this home

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!

Listing snapshot

Days on site
42 days
Listed on MLS
Sep 16, 2026
Full baths
2
Half baths
1
Annual property tax (MLS)
$16,435.46
Tax year
2026
Area source (MLS)
Public Records
Listing brokerage
Netter Real Estate Inc
MLS ID
KEY1051841
Last updated
Oct 12, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
2006
Garage
Yes
Garage spaces
1
Parking
Driveway, Electric Vehicle Charging Station(s), Garage, Garage Door Opener, On Street
Water source
Public
Sewer
Public Sewer
Utilities
Electricity Available, Sewer Connected, Trash Collection Public, Water Connected

Interior features

Basement
Full, Walk-Out Access
Heating
Hot Air, Natural Gas
Cooling
Central Air
Interior
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, Soaking Tub, Sound System, Speakers, Storage, Walk Through Kitchen, Washer/Dryer Hookup
Appliances
Dishwasher, Disposal, Exhaust Fan, Freezer, Gas Cooktop, Gas Oven, Microwave, Refrigerator, Stainless Steel Appliance(s), Trash Compactor, Gas Water Heater
Flooring
Ceramic Tile, Hardwood, Laminate
Fireplace
Yes
Fireplaces
1

Exterior features

Architectural style
Colonial
Construction materials
Brick, Vinyl Siding
Exterior
Balcony, Garden, Gas Grill, Mailbox, Speakers
Private pool
No

Schools (MLS)

Elementary school
Wing Elementary School
Elementary school district
Islip
Middle school
Islip Middle School
Middle school district
Islip
High school
Islip High School
High school district
Islip

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. Listing updated from MLS
  2. MLS status changed
  3. First seen on this site

Location

Islip · Suffolk County, NY 11751Show interactive map
24 William Avenue

Islip · Suffolk County, NY 11751

Google Maps directions

Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
MLS amounts are prefilled when available and can be edited. Confirm what fees include. Unknown fee frequencies cannot be converted automatically.Property expenses: MLS values where available; missing values stay blank.

Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

Listing data is supplied by the MLS and may change without notice.