For Sale

24 William Avenue Islip, NY 11751

$829,999

Listed September 16, 2026, 3 days ago

Listing courtesy of Annie L. Bos Greene, Netter Real Estate Inc MLS #KEY1051841

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  • 5Bedrooms
  • 2.5Bathrooms
  • 2,258Square feet
  • $368Per square foot
  • 2006Year built

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!

Description supplied by the listing broker.

Features

  • 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

Property details

Interior

Attic
Pull Stairs
Kitchens
1
Flooring
Ceramic Tile, Hardwood, Laminate
Levels
Tri-Level
Windows
Double Pane Windows
Fireplace
Yes
Fireplaces
1
Appliances
Dishwasher, Disposal, Exhaust Fan, Freezer, Gas Cooktop, Gas Oven, Microwave, Refrigerator, Stainless Steel Appliance(s), Trash Compactor, Gas Water Heater

Systems and utilities

Heating
Hot Air, Natural Gas
Heating zones
2
Cooling
Central Air
Utilities
Electricity Available, Sewer Connected, Trash Collection Public, Water Connected
Water
Public

Exterior and lot

Construction
Brick, Vinyl Siding
Architectural style
Colonial
Condition
Actual
Parking
Driveway, Electric Vehicle Charging Station(s), Garage, Garage Door Opener, On Street
Fencing
Back Yard, Fenced, Vinyl
Patio and porch
Covered, Deck
View
Neighborhood
Lot features
Back Yard, Front Yard, Garden, Landscaped, Near Public Transit, Near School, Near Shops, Part Wooded, Private, Secluded, Sprinklers In Front, Sprinklers In Rear

Tax and legal

Parcel number
0500-319-00-03-00-083-012
Tax lot
83012
Tax block
300
Tax section
31900
MLS district
500
Listing agreement
Exclusive Right To Sell
Exclusions
Washer, Refrigerator, and Generator

Property details supplied by the listing broker through OneKey MLS, as of September 19, 2026. Fields not shown were not supplied and should not be read as absent from the property.

This listing

  1. September 16, 2026 Listed at $829,999

Location

24 William Avenue, Islip, NY 11751

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