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Frieda Fenn
Associate Real Estate Broker
REALTOR®, SRES, RELO, CBR
(516) 972-8811
  • 24 William Avenue , Islip, NY 11751 Main Photo

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Frieda Fenn
Call: (516) 972-8811
Text: (516) 972-8811

New to the Market
BEDS5 BATHS2 full 1 partial SQUARE FEET2,258 MLS#1047997
STATUSActive PROPERTY TYPEResidential - Single Family SCHOOLIslip

Property Description

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!

24 William Avenue | MLS# 1047997

This single family home located at 24 William Avenue , Islip, NY 11751 is currently listed for sale with an asking price of $829,999. This property was built in 2006 and has 5 bedrooms and 2 full and 1 partial baths with 2258 sq. ft. William Avenue is located within the Islip school district. Search Islip real estate on friedafenn.laffey.com today.

Upcoming Open Houses

Open House Saturday September 19th, 11:00am - 2:00pm

Property Features

Property Type: Residential - Single Family
Basement: Yes
Basement: Full, Walk-Out Access
Cooling: Central Air
Fenced: Yes
Fireplaces: 1
Garage: 1
Heating: Hot Air, Natural Gas
Home Style: Colonial
Lot Size: 0.17 Acres
Taxes: $16,435
Year Built: 2006

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
Soaking Tub
Sound System
Speakers
Storage
Walk Through Kitchen
Washer/Dryer Hookup
Balcony
Garden
Gas Grill
Mailbox
Speakers

Feature Descriptions

Appliances: Dishwasher, Disposal, Exhaust Fan, Freezer, Gas Cooktop, Gas Oven, Microwave, Refrigerator, Stainless Steel Appliance(s), Trash Compactor, Gas Water Heater
Attic: Pull Stairs
Building Area Total: 2665
Exclusions: Washer and Generator
Exterior: Brick, Vinyl Siding
Fencing: Back Yard, Fenced, Vinyl
Fireplace Features: Gas
Fireplace Y/N: Yes
Flooring: Ceramic Tile, Hardwood, Laminate
GarageY/N: Yes
Heating Zones: 2
House Faces: East
Laundry: Gas Dryer Hookup, Laundry Room, Other
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
On Market Date: 2026-09-16
Other Structures: Garage(s), Gazebo, Outdoor Kitchen, Shed(s)
Parcel Number: 0500-319-00-03-00-083-012
Parking Features: Driveway, Electric Vehicle Charging Station(s), Garage, Garage Door Opener, On Street
Patio And Porch: Covered, Deck
Rental Term: Monthly
Rooms Total: 8
Security: yes
Security Features: Fire Alarm, Security System, Smoke Detector(s)
Sewer: Public Sewer
Special View Info: Neighborhood
Utilities: Electricity Available, Sewer Connected, Trash Collection Public, Water Connected
Water: Public
Window Features: Double Pane Windows
Wooded: Yes

Local Schools

High School: Islip High School
Middle School: Islip Middle School
Elementary School: Wing Elementary School
School District: Islip

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Estimated Payment

$ 3,458.89 per month $1,847.22 Principal & Interest $1,369.58 Property Tax $242.08 Homeowner's Insurance

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Listed By / Shown By

Listing By

Agency Name: Netter Real Estate Inc
Agency Contact: 631-661-5100

Shown By

Agent Name: Frieda Fenn
Agent Phone: (516) 972-8811
Agency Title: Laffey Real Estate

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Disclaimer: All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 09/16/2026. The listing information on this page last changed on 09/16/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Wed 09/16/2026 2:01:22 AM EST) or OneKey MLS (last updated Wed 09/16/2026 1:45:25 AM EST). Real estate listings held by brokerage firms other than Laffey Real Estate may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.

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