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Single family home for sale at 20 Old Route 25a, Smithtown, NY 11768 | MLS# 1051896 | Listing updated on 2026-10-29
Photo 1 of Single family home for sale at 20 Old Route 25a, Smithtown, NY 11768 | MLS# 1051896 | Listing updated on 2026-10-29
Photo 2 of Single family home for sale at 20 Old Route 25a, Smithtown, NY 11768 | MLS# 1051896 | Listing updated on 2026-10-29
Photo 3 of Single family home for sale at 20 Old Route 25a, Smithtown, NY 11768 | MLS# 1051896 | Listing updated on 2026-10-29
Photo 4 of Single family home for sale at 20 Old Route 25a, Smithtown, NY 11768 | MLS# 1051896 | Listing updated on 2026-10-29
46+
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Street View

$1,950,000

Monthly Est:$9,706

  • Beds Icon6 Beds
  • Beds Icon
    5 Baths
  • Beds Icon4,426sqft

20 Old Route 25a, Smithtown, NY 11768

$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 a
nd 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 OneKey MLS-NY as distributed by MLS GRID

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    -

  • County

    Suffolk County

  • City

    Smithtown

  • 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

DateEventPrice

10/07/2026

Source: mls_logoOneKey MLS-NY #KEY1050930

Price Decreased

$1,950,000 -2.50%

$441/sqft

09/16/2026

Source: mls_logoOneKey MLS-NY #KEY1050930

Listed for Sale

$2,000,000

$452/sqft

Nearby Homes

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.

Advertising Broker: Derek Greene | The Greene Realty Group

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