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Listing view 2
Listing view 3

20 Old Route 25a, 
Northport, NY 11768

$2,000,000


6

Beds


4

Baths


4,426

Sq Ft


Multi-Family

Active

Listed by

Andrew-Paul S. Ragusa Sfr Srs

Christopher T. Booker

Remi Realty

Last updated:

September 20, 2026, 11:17 AM

MLS#

1050930

Source:

OneKey MLS

About This Home

20 Old Route 25a

Legal 2-family ranch on a full acre in the hamlet of Fort Salonga, Town of Smithtown. Northport mailing address (11768). Kings Park Schools. This house is large, with more rooms than can be shown in the listing photos — come see it in person to get the full layout. Approximately 4,426 sq ft with 6 bedrooms, 3 full baths, and 2 half baths. Original home built 1979; extension added 2003. GAF 50-year shingles were installed on the entire house in 2003 at the same time as the addition. Hardwood flooring throughout the main house and the extension. Vaulted ceilings in both houses. Two distinct main-level living wings. Kitchen with center island opens to dining and a vaulted living area with brick fireplace and skylights. Second kitchen and living wing on the main floor. Main bath in the extension has heated flooring. Main house has three heating zones: bedrooms, living area, and basement. Central air in the main house is first floor only, with two separate zones: one for the bedrooms and one for the living area. Extension has two heating and cooling zones, one for each floor. Both oil tanks are above ground and located in the basements. Two separate basement areas. The main-house basement is partially finished with rec room and walk-out access from the garage. The extension basement is partially above grade due to the slope of the property, with full-size windows, 10-ft clearance, and a walk-out. In-ground saltwater pool added 2004 with paver patio. Pool has its own drywell so the filter can be backwashed directly into the drywell. Pool is fenced. Property is partially fenced. PVC deck connecting the two houses. Motion-sensor lighting around the exterior. Mature evergreens. Attached two-car garage and long paved driveway with its own lighting. Main house on cesspool; extension on its own septic system. Separate meters for all utilities, including water. Taxes have been grieved; decision pending. Showings by appointment with 24 hours’ notice. Do not disturb occupants.

Home Facts

Multi-Family

4 Baths

6 Bedrooms

Built in 1979

Price Summary

2,000,000

$451 per Sq. Ft.

MLS #:

1050930

Last Updated:

September 20, 2026, 11:17 AM

Added:

5 day(s) ago


Rooms & Interior

Bedrooms

Total Bedrooms:

6

Bathrooms

Total Bathrooms:

4

Full Bathrooms:

4


Structure

Structure

Architectural Style:

Exp Ranch, Ranch

Building Area:

4,426 Sq. Ft.

Year Built:

1979


Lot

Lot Size (Sq. Ft):

43,560


Finances & Disclosures

Finances

Price:

$2,000,000

Price per Sq. Ft:

$451 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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20 Old Route 25a
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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.