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Street View
$1,950,000
Monthly Est:$9,706
6 Beds
- 5 Baths
3 full baths + 2 half baths
4,426sqft
20 Old Route 25a, Smithtown, NY 11768
$1,950,000
$9,706/moEst:
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Single Family Residence
Built in 1979
$-- HOA
1 acre lot
$441/sq.ft
Description
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.
- Houzeo last checked: 6 minutes ago
- Listing updated: October 29, 2026 at 4:10 pm
- Listing Provided by: Andrew-Paul S. Ragusa SFR SRS (516) 858-9434 , Christopher T. Booker | REMI Realty (516) 500-3537
- Source: OneKey MLS-NY as distributed by MLS GRID | MLS#: 1051896

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
-
County
City
Neighborhood
--
Year Built
1979
HOA Fees
-
Finished Area
4,426 sqft
Lot Size
1 acre lot
Basement Area
- sqft
MLS Name
OneKey MLS
MLS Number
1051896
MLS Status
Active
Days on Market
48
Cumulative Days on Market
43

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 6
Bathrooms: 5
Interior
Flooring
Carpet, Ceramic Tile, Hardwood
Appliances
Dishwasher, Dryer, Electric Range, Electric Water Heater, Refrigerator, Stainless Steel Appliance(s), Washer
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)
Sewer
Cesspool, Septic Tank
Cooling
Central Air
Heating
Oil
Exterior Features
Lighting, Mailbox
Construction
Year Built
Year Built: 1979
Home type
Single Family Residence
Architectural Style
Exp Ranch, Ranch
Construction Materials
Cedar, Frame
Property Condition
Actual
Utilities & Energy
Water Source
Public
Laundry Features
Electric Dryer Hookup
Parking Features
Driveway, Garage, Garage Door Opener
Pool Features
Fenced, In Ground, Pool Cover, Salt Water
Basement
Finished, Partial, Storage Space, Unfinished, Walk Out Access
Utilities
Cable Connected, Electricity Connected, Natural Gas Connected, Trash Collection Public, Water Connected
Security Features
Security System, Video Cameras
Other Features
Patio And Porch Features
Deck, Wrap Around
Price History
| Date | Event | Price |
|---|---|---|
10/07/2026 Source: | Price Decreased | $1,950,000 -2.50% $441/sqft |
09/16/2026 Source: | Listed for Sale | $2,000,000 $452/sqft |
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Based on information from OneKey MLS® through Nov 04, 2026, 09:01AM as submitted to and distributed by MLS GRID. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. IDX information is provided exclusively for consumers’ personal non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. The use of the MLS GRID Data may be subject to an end-user license agreement prescribed by the Member Participant’s applicable MLS, if any, and as amended from time to time. © 2026 OneKey MLS. All rights reserved.
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