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86 Union Avenue, 
Islip, NY 11751

$699,990

3

Beds

2

Baths

1,236

Sq Ft

Single Family

Virtual Tour

Active

Listed by

Michael J. Watts

Michael J Watts & Assoc Inc

Last updated:

November 4, 2026, 02:12 PM

MLS#

1048892

Source:

OneKey MLS

About This Home

86 Union Avenue

Bring your vision to 86 Union Ave, a charming Islip property with classic character and an exceptional location! This traditional home features a welcoming covered front porch, distinctive architectural details, and a spacious, level lot with a detached garage/outbuilding. The generous grounds offer plenty of possibilities for outdoor living, gardening, recreation, or future improvements. Ideally situated directly next to the Islip Public Library and close to local shops, restaurants, parks, and village amenities. A unique opportunity to restore, renovate, and make this property your own in a highly desirable Islip location!

Home Facts

Single Family

2 Baths

3 Bedrooms

Built in 1892

Price Summary

699,990

$566 per Sq. Ft.

MLS #:

1048892

Last Updated:

November 4, 2026, 02:12 PM

Added:

a month ago

Rooms & Interior

Bedrooms

Total Bedrooms:

3

Bathrooms

Total Bathrooms:

2

Full Bathrooms:

1

Interior

Living Area:

1,236 Sq. Ft.

Structure

Structure

Architectural Style:

Colonial

Building Area:

1,994 Sq. Ft.

Year Built:

1892

Lot

Lot Size (Sq. Ft):

10,890

Finances & Disclosures

Finances

Price:

$699,990

Price per Sq. Ft:

$566 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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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.