20 Old Route 25A, Northport, NY 11768

20 Old Route 25A, Northport, NY 11768

$1,950,000 · 6 bed · 5 bath · 4,426 sq ft · built 1979 · MLS# 1050930 · Active

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…

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Based on information submitted to the MLS GRID as of October 11, 2026 4:30 am. 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.

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Northport Market Trend

Northport has tightened over the past 2 years: the median sale price has advanced roughly 38% year over year to near $1.35M, and sales have generally been closing faster. Sellers currently hold the stronger hand, and if the pattern persists, prices could continue to firm.

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Looking for off-market opportunities or a property attorney's read on this listing? Contact Joseph DeVito — Lic. R.E. Associate Broker + NY-licensed real estate attorney.