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25 William Street, Central Islip NY 11722
25 William Street, Central Islip NY 11722
New York>Suffolk County>Central Islip

25 William StreetCentral Islip, NY 11722

For Sale

$675,000

Smart Buyer Rebate $4,375

Welcome to 25 William St, Central Islip an oversized property offering comfort, versatility and endless possibilities. This well maintained residence features 4 generously sized bedrooms and 3 full bathrooms, providing plenty of space for today's lifestyle. Step inside and discover a bright, welcoming layout designed for comfortable everyday living and entertaining. The full basement offers excellent potential for recreation, storage or future customization to suit your needs. Additional highlights include oil heating, oil fuel and three cesspools adding functionality to the property. The partially fenced yard provides the perfect outdoor space to relax, garden or entertain family and friends. Conveniently located near schools, shopping, restaurants, parks and public transportation, this home offers easy access to all the amenities Central Islip has to offer. With its spacious layout, great potential and convenient location, this is an outstanding opportunity to make 25 William St your next home. Come see all the possibilities this wonderful property has to offer!

Listed by Maria R. Zelaya

·

ARVY Realty

·

631-617-5135

Last updated July 29, 2026

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Source: OneKey #1026610

Listing Facts

  • TypeSingle-family
  • NeighborhoodCentral Islip
  • Bedrooms4
  • Bathrooms3
  • Days on Prevu8
  • Taxes$7,939/year
  • Size1,460 sqft
  • Price per sqft$462

Location

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Listing History

07/24/2026
Listed by ARVY Realty
$675,000

Property Details for 25 William Street

Exterior

Construction

  • Year Built: 1870
  • Architectural Style: Colonial
  • Construction Materials: Frame

Features

  • Fencing: Partial

Measurements

  • Building Area Total: 1,586
  • Building Area Units: Square Feet
  • Lot Features: Near Public Transit, Near School, Near Shops
  • Lot Size Acres: 0.35
  • Lot Size Square Feet: 15,246

Financial

Taxes

  • Parcel Number: 0500-099-00-02-00-022-002
  • Tax Annual Amount: $7,939.00
  • Tax Assessed Value: $22,700.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Range, Refrigerator
  • Flooring: Laminate
  • Interior Features: Galley Type Kitchen, Other

Measurements

  • Living Area: 1,460
  • Living Area Source: Public Records

Rooms

  • Basement: Finished, Full
  • Has Basement: Yes
  • Bathrooms Full: 3
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 4
  • Rooms Total: 7

Parking

Parking

  • Parking Features: Driveway, Off Street, On Street, Private

Schools

Elementary School

  • Elementary School: Anthony Alfano Elementary School
  • Elementary School District: Central Islip

High School

  • High School: Central Islip Senior High School
  • High School District: Central Islip

Middle or Junior School

  • Middle Or Junior School: Ralph Reed School
  • Middle Or Junior School District: Central Islip

Utilities

Equipment

  • Heating: Oil, Other
  • Sewer: Cesspool
  • Utilities: Electricity Available, Sewer Available, Water Available
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 3 bathrooms in this single-family home at 25 William Street.

What schools are nearby to 25 William Street?

Nearby schools include the Anthony Alfano Elementary School, Ralph Reed School Middle School, and Central Islip Senior High School.

What are the annual taxes for 25 William Street?

Annual taxes for this single-family home are estimated at $7,939.

How does 25 William Street compare to other single-family homes in Central Islip?

This single-family home is listed 4% above the average price for single-family homes in Central Islip and has been on the market for 51 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 1,460 sqft.

25 William Street is a 4-bedroom, 3-bath single-family home for sale in Central Islip NY 11722. On Prevu for 8 days at $675,000. This home features 1,460 square feet of living space, located in Central Islip. The median listing price for single-family homes in this area is $625,000. Nearby schools include Anthony Alfano Elementary School, Ralph Reed School Middle School, and Central Islip Senior High School. View other single-family home listings in Suffolk County.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.