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25 William Street, 
Central Islip, NY 11722

$675,000

4

Beds

3

Baths

1,460

Sq Ft

Single Family

Active

Listed by

Maria R. Zelaya

Arvy Realty

Last updated:

July 31, 2026, 11:07 AM

MLS#

1026610

Source:

OneKey MLS

About This Home

25 William Street

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!

Home Facts

Single Family

3 Baths

4 Bedrooms

Built in 1870

Price Summary

675,000

$462 per Sq. Ft.

MLS #:

1026610

Last Updated:

July 31, 2026, 11:07 AM

Added:

16 day(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

4

Bathrooms

Total Bathrooms:

3

Full Bathrooms:

3

Interior

Living Area:

1,460 Sq. Ft.

Structure

Structure

Architectural Style:

Colonial

Building Area:

1,586 Sq. Ft.

Year Built:

1870

Lot

Lot Size (Sq. Ft):

15,246

Finances & Disclosures

Finances

Price:

$675,000

Price per Sq. Ft:

$462 per Sq. Ft.

Source:OneKey MLS
Copyright 2026 OneKey MLS. All rights reserved. Listings courtesy of OneKey MLS as distributed by MLS GRID . OneKey MLS provides content displayed here (“provided content”) on an “as is” basis and makes no representations or warranties regarding the provided content, including, but not limited to those of non-infringement, timeliness, accuracy, or completeness. Individuals and companies using information presented are responsible for verification and validation of information they utilize and present to their customers and clients. OneKey MLS will not be liable for any damage or loss resulting from use of the provided content or the products available through Portals, IDX, VOW, and/or Syndication. Recipients of this information shall not resell, redistribute, reproduce, modify, or otherwise copy any portion thereof without the expressed written consent of OneKey MLS.
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25 William Street
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Sat, Aug 1
01:00 PM - 02:00 PM
Sun, Aug 2
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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.