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20 Old Route 25ANorthport, NY 11768

For Sale

$1,950,000

Smart Buyer Rebate $19,500

Legal 2-family ranch on a full acre in the hamlet of Fort Salonga, Town of Smithtown. Northport mailing address (11768). Kings Park Schools. Legal 2-family layout also works as a multi-generational or mother-daughter home, with two living wings, two kitchens, and separate utility meters. 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 and a jacuzzi. 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.

Listed by Andrew-Paul S. Ragusa SFR SRS

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REMI Realty

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516-500-3537

Listed by Christopher T. Booker

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REMI Realty

Last updated October 29, 2026

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Source: OneKey #1051896

Listing Facts

  • TypeSingle-family
  • NeighborhoodFort Salonga
  • Bedrooms6
  • Bathrooms5
  • Days on Prevu45
  • Taxes$40,942/year
  • Size4,426 sqft
  • Price per sqft$441

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking
  • Swimming Pool

Location

Mortgage Calculator

Listing History

10/08/2026
Price Decreased
$1,950,000
09/16/2026
Listed by REMI Realty
$2,000,000
  1. 10/08/2026$1,950,000
    Price Decreased
  2. 09/16/2026$2,000,000
    Listed by REMI Realty

Property Details for 20 Old Route 25A

Exterior

Construction

  • Property Condition: Actual
  • Year Built: 1979
  • Architectural Style: Exp Ranch, Ranch
  • Construction Materials: Cedar, Frame
  • Exterior Features: Lighting, Mailbox

Features

  • Fencing: Partial
  • Other Structures: Shed(s)
  • Patio And Porch Features: Deck, Wrap Around
  • Pool Features: Fenced, In Ground, Pool Cover, Salt Water
  • Pool Private: Yes

Measurements

  • Building Area Total: 4,426
  • Building Area Units: Square Feet
  • Lot Size Acres: 1.00
  • Lot Size Square Feet: 43,560

Financial

Taxes

  • Parcel Number: 0800-006-00-02-00-005-006
  • Tax Annual Amount: $40,942.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Dishwasher, Dryer, Electric Range, Electric Water Heater, Refrigerator, Stainless Steel Appliance(s), Washer
  • Fireplace: Yes
  • Flooring: Carpet, Ceramic Tile, Hardwood
  • Interior Features: First Floor Bedroom, First Floor Full Bath, Cathedral Ceiling(s), Eat-in Kitchen, Entrance Foyer, Formal Dining, High Ceilings, High Speed Internet, Kitchen Island, Open Floorplan, Primary Bathroom, Storage, Walk Through Kitchen, Walk-In Closet(s)

Measurements

  • Living Area: 4,426
  • Living Area Source: Public Records

Rooms

  • Basement: Finished, Partial, Storage Space, Unfinished, Walk-Out Access
  • Has Basement: Yes
  • Bathrooms Full: 3
  • Bathrooms Half: 2
  • Bathrooms Total Integer: 5
  • Bedrooms Total: 6
  • Rooms Total: 19

Parking

Parking

  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Driveway, Garage, Garage Door Opener
  • Parking Total: 7

Schools

Elementary School

  • Elementary School: Fort Salonga Elementary School
  • Elementary School District: Kings Park

High School

  • High School: Kings Park High School
  • High School District: Kings Park

Middle or Junior School

  • Middle Or Junior School: William T Rogers Middle School
  • Middle Or Junior School District: Kings Park

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Oil
  • Laundry Features: Electric Dryer Hookup
  • Other Equipment: Pool Equip/Cover
  • Sewer: Cesspool, Septic Tank
  • Utilities: Cable Connected, Electricity Connected, Natural Gas Connected, Trash Collection Public, Water Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 6 bedrooms and 5 bathrooms in this single-family home at 20 Old Route 25A.

What schools are nearby to 20 Old Route 25A?

Nearby schools include the Fort Salonga Elementary School, William T Rogers Middle School, and Kings Park High School.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 20 Old Route 25A.

What are the annual taxes for 20 Old Route 25A?

Annual taxes for this single-family home are estimated at $40,942.

How does 20 Old Route 25A compare to other single-family homes in Fort Salonga?

This single-family home is listed 36% above the average price for single-family homes in Fort Salonga and has been on the market for 7 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 4,426 sqft.

20 Old Route 25A is a 6-bedroom, 5-bath single-family home for sale in Northport NY 11768. Listed on Prevu for 45 days at $1,950,000. This includes a recent price decrease of $50,000. This residence features 4,426 square feet of living space, located in Fort Salonga. The median listing price for single-family homes in this area is $1,299,000. Nearby schools include Fort Salonga Elementary School, William T Rogers Middle School, and Kings Park High School. Additional amenities include private outdoor space, dishwasher, air conditioning, parking, swimming pool, and washer/dryer. Browse more single-family home listings in Suffolk County.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.