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$675,000

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 3 Full Baths
  • 1,586 Sq. Ft.
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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!

Full Property Details for 25 William St

General

  • Price: $675,000
  • Taxes: $7,939
  • Status: Active
  • Type: Single Family
  • Source: Long_Island
  • MLS ID: 1026610
  • Updated: 7/29/2026
  • Added to Site: 35 day(s) ago

Interior

  • Number of Rooms: 7
  • Interior Features: Galley Type Kitchen, Other
  • Appliances: Range, Refrigerator
  • Flooring: Laminate

Rooms

Bathrooms

  • Total Bathrooms: 3
  • Full Bathrooms: 3

Bedrooms

  • Total Bedrooms: 4

Parking

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

Location

  • County: Suffolk County
  • Cross Streets: Short St

School Information

  • High School District: Central Islip
  • Elementary School: Anthony Alfano Elementary School
  • Middle School: Ralph Reed School
  • High School: Central Islip Senior High School

Heating & Cooling

  • Cooling Type: None
  • Heating Type: Oil, Other

Utilities

  • Sewer: Cesspool
  • Water: Public
  • Utility Description: Electricity Available, Sewer Available, Water Available

Structural Information

  • Architectural Style: Colonial
  • Detached/Attached: Detached
  • Construction: Frame
  • Basement: Yes
  • Basement Desc.: Finished, Full Basement
  • Unfinished Attic: Yes
  • Building Size: 1586
  • Square Feet: 1,586
  • Sq. Ft. Source: Public Records
  • Year Built: 1870

Lot Features

  • Lot Size (Acres): 0.35
  • Lot Size (Sq. Ft.): 15,246
  • Fence: Yes
  • Lot Features: Near Public Transit, Near School, Near Shops
  • Fencing (Description): Partial

Financial Considerations

  • Tax Amount: $7,939

Disclosures and Reports

  • Special Conditions: None
  • Property ID: 0500-099-00-02-00-022-002

Listed by ARVY Realty

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Listing agent

— 25 William St —

  • ARVY Realty

631-617-5135

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 25 William St

School District:Central Islip Union Free School District
NameGradesDistance
Anthony Alfano Elementary School
50 Wheeler Road, Central Islip, NY 11722
PK-10.6 mi
Andrew T Morrow School
299 Sycamore Lane, Islandia, NY 11749
1-51.2 mi
Ralph Reed School
200 Half Mile Road, Central Islip, NY 11722
6-90.3 mi
Central Islip Senior High School
85 Wheeler Road, Central Islip, NY 11722
9-120.6 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 25 William St Get Price Alerts and Save Property

Date
Details
Price
Change
Source
7/24/2026
Listed
$675,000
133.85%
MLS
5/09/2006
Sold
$288,650
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 25 William St

Year
Property Taxes
Change
Tax Assessment
Change
2020
100%
$22,700
—
2022
-100%
$22,700
—
2016
$6,459
-8%
$22,700
—
2017
$7,032
1%
$22,700
—
2016
$6,975
1%
$22,700
—
2015
$6,932
1%
$22,700
—
2015
$6,890
1%
$22,700
—
2014
$6,820
1%
$22,700
—
2013
$6,728
—
$22,700
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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Listed by ARVY Realty

25 William Street, Central Islip, NY 11722 (MLS# 1026610) is a Single Family property with 4 bedrooms and 3 full bathrooms. 25 William Street is currently listed for $675,000 and was received on July 24, 2026. Want to learn more about 25 William Street? Do you have questions about finding other Single Family real estate for sale in Central Islip? You can browse all Central Islip real estate or contact a Coldwell Banker agent to request more information.

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