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40 Deforest Avenue, 
West Islip, NY 11795

$748,000

4

Beds

3

Baths

2,062

Sq Ft

Single Family

Virtual Tour

Active

Listed by

John J. Mackin

, 

Richard D. Bocchieri E-Pro Gri Abr

Netter Real Estate Inc

Last updated:

June 5, 2026, 05:47 PM

MLS#

992509

Source:

OneKey MLS

About This Home

40 Deforest Avenue

Discover this wide line Expanded Ranch nestled on a dead-end street south of Montauk Highway in desirable West Islip hamlet. This spacious 2,064 Sq. Ft. of living space home boasts 4 bedrooms and 3 full baths set on a 0.29-acre lot, equipped with in-ground sprinklers and a 5-zone heating system, alongside a split air conditioning system for year-round comfort. Step inside to find stunning cherrywood hardwood floors, enhanced by recessed lighting and ceiling fans for comfort and style. The oversized living room and dining room create the perfect setting for gatherings. This home offers a full unfinished basement and crawl space. For car enthusiasts, the oversized 2 car detached garage comes equipped with an automobile lift. With a 200-amp service, this home combines vintage appeal built in 1923 with modern conveniences.

Home Facts

Single Family

3 Baths

4 Bedrooms

Built in 1923

Price Summary

748,000

$362 per Sq. Ft.

MLS #:

992509

Last Updated:

June 5, 2026, 05:47 PM

Added:

a month ago

Rooms & Interior

Bedrooms

Total Bedrooms:

4

Bathrooms

Total Bathrooms:

3

Full Bathrooms:

3

Interior

Living Area:

2,062 Sq. Ft.

Structure

Structure

Architectural Style:

Exp Ranch

Building Area:

2,524 Sq. Ft.

Year Built:

1923

Lot

Lot Size (Sq. Ft):

12,632

Finances & Disclosures

Finances

Price:

$748,000

Price per Sq. Ft:

$362 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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40 Deforest Avenue
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Sat, Jun 6
12:00 PM - 02:00 PM

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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.