20 Hilltop Drive, Mount Sinai, NY 11766

$799,999 · 5 bed · 3 bath · 3,000 sq ft · built 1974 · MLS# 1053303 · Active

Welcome to 20 Hilltop Drive! This spacious 5-bedroom, 2.5-bath home pairs a well-designed interior with a private backyard built for entertaining. Its updated kitchen has granite countertops, a large center island, stainless steel appliances, a wine fridge, and room for an eat-in dining area. Next to it is an oversized family room, and a formal living room and formal dining room are there for hosting. Upstairs, the bright primary suite comes with a primary bath and two walk-in closets. There are also four additional bedrooms, all a good size, and…

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 $799,999 list price sits in the mid-market 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 $17,005 a year, this home's property tax runs roughly 13% above the $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