249 Cold Spring Road, Syosset, NY 11791
$1,848,000 · 5 bed · 4 bath · 3,555 sq ft · built 1951 · MLS# 1006505 · Active
Enjoy suburban calmness with city accessibility in the top-rated Syosset School District. Commuting is effortless with the Syosset LIRR station just minutes away, providing under 55-minute express service to Penn Station and Grand Central Madison. This secure, quiet home features a full ADT security system and underwent comprehensive renovations in 2018, including new infrastructure (roof, siding, windows, electric, and plumbing). The property offers five bedrooms, four bathrooms, and a light-filled kitchen with cozy radiant heat flooring. Expansive front and back decks perfect for outdoor family entertaining. Offering the perfect blend…
Single-family homes in the Syosset Central School District sold for a median of $1,315,000 (typically $1,050,000–$1,760,000) across 259 recorded sales between Oct 6, 2025 and Oct 2, 2026, up 7.7% on the 12 months before. This home's $1,848,000 list price sits in the upper single-family tier for the Syosset Central School District.
ZIP 11791 has about 3.7 months of single family inventory — seller's market. Demand is outpacing supply, so homes sell quickly with firm pricing and limited room to negotiate.
At about $28,800 a year, this home's property tax runs roughly 31% above the $22,000 typical for Syosset Central School District. Nassau assessments run on a multi-year cycle, so the assessed value behind this bill can lag what the home actually sells for today. A sale does not automatically reset it, and exemptions such as STAR, Senior or Veteran move the number as well — a new owner's bill is often not the same as the seller's.
OneKey MLS (recorded LI sales, trailing 12mo) + actual tax

Listings courtesy of OneKey® MLS as distributed by MLS GRID.
Based on information submitted to the MLS GRID as of October 11, 2026 3:30 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.
Personal-use terms and which listings this site shows: MLS & Data Disclosures
Syosset Market Trend
Syosset has tightened over the past 2 years: the median sale price has advanced roughly 13% year over year to near $1.31M, and sales have generally been closing faster. Sellers currently hold the stronger hand, and if the pattern persists, prices could continue to firm.
Considering Syosset? Explore the Syosset community guide →
More homes nearby
- All homes for sale in Syosset, NY
- Homes for sale in Nassau County, NY
- All Long Island & NYC listings
- Homes in ZIP 11791
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.
