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12 Mountain Street, 
Ronkonkoma, NY 11779

$600,000


3

Beds


2

Baths


1,800

Sq Ft


Single Family

Active

Listed by

Andrew Fraczak

Oversouth LLC.

Last updated:

November 1, 2026, 05:19 PM

MLS#

1061438

Source:

OneKey MLS

About This Home

12 Mountain Street

Welcome to this inviting 3-bedroom, 2-bath ranch in Ronkonkoma, offering a thoughtful combination of recent improvements, everyday comfort, and practical living spaces. The beautifully renovated kitchen, updated within the past two years, serves as a welcoming centerpiece of the home, offering a refreshed space for relaxing, cooking, and gathering. The convenient ranch-style layout is complemented by a full finished basement with a separate walk-out entrance, providing additional space and flexibility. Notable improvements include a roof replaced in 2019, a 200-amp electrical panel, and an oil burner and hot water tank approximately five years old. Four-zone oil-fired baseboard heating and ductless air conditioning units installed approximately six years ago provide options for year-round temperature control. Outside, a five-zone in-ground sprinkler system services both the front and rear yards. Additional features include kitchen appliances approximately six years old and a washer and dryer replaced approximately three years ago. Conveniently situated just minutes from the Ronkonkoma Long Island Rail Road station, this property offers access to regional transportation. With its combination of recent updates, functional features, and convenient location, this ranch presents an opportunity to enjoy all that the property has to offer.

Home Facts

Single Family

2 Baths

3 Bedrooms

Built in 1965

Price Summary

600,000

$333 per Sq. Ft.

MLS #:

1061438

Last Updated:

November 1, 2026, 05:19 PM

Added:

20 day(s) ago


Rooms & Interior

Bedrooms

Total Bedrooms:

3

Bathrooms

Total Bathrooms:

2

Full Bathrooms:

2

Interior

Living Area:

1,800 Sq. Ft.


Structure

Structure

Architectural Style:

Ranch

Building Area:

3,152 Sq. Ft.

Year Built:

1965


Lot

Lot Size (Sq. Ft):

10,890


Finances & Disclosures

Finances

Price:

$600,000

Price per Sq. Ft:

$333 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.