68 Chestnut Street, Mount Sinai, NY 11766

$969,000 · 4 bed · 3 bath · 3,000 sq ft · built 1997 · MLS# 1053741 · Active

Privacy, Elegance & Endless Possibilities Welcome to a truly distinctive property where architectural character, modern updates, space, and privacy come together. Built in the 1990s and thoughtfully updated over the years, this unique hillside residence is designed into the natural grade of the property, creating an exceptional multi-level layout. The home features four bedrooms and three full baths, with two bedrooms on the ground level and two bedrooms on the main living level. Because of the home's hillside design, what would traditionally be considered a basement, it functions as a…

Single-family homes in the Mount Sinai Union Free School District sold for a median of $800,000 (typically $710,000–$985,000) across 104 recorded sales between Oct 14, 2025 and Sep 30, 2026, up 4.6% on the 12 months before. This home's $969,000 list price sits in the upper single-family tier for the Mount Sinai Union Free School District.

ZIP 11766 has about 2.3 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 $15,563 a year, this home's property tax is in line with the roughly $15,000 typical for Mount Sinai Union Free School District. Suffolk bills combine town, school and special-district levies, so two homes at the same price in neighboring districts can carry materially different taxes. 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