173 Hamlet Drive, Mount Sinai, NY 11766

$999,995 · 3 bed · 3 bath · 2,144 sq ft · built 2003 · MLS# 1055911 · Active

Your new detached ranch style home affords single story living with much privacy; located across from a "Greenfield" (no homes across from yours!) and backs to the Golf Course. A surprisingly intimate private rear yard features GUNITE HEATED SPA, a PERGOLA, and many plantings; This beautiful home was the FORMER MODEL affording all updates; all custom designed touches says WOW ! Purchasers to pay HOA 1/2% of purchase price to capital improvement fund...TAXES are approximately $8,000 year…we pay +/- $6,000 with regular STAR…Although this Property is a Condo, the privacy…

Condos in the Mount Sinai Union Free School District sold for a median of $720,000 (typically $570,000–$800,000) across 33 recorded sales between Oct 8, 2025 and Sep 24, 2026, up 10.8% on the 12 months before.

ZIP 11766 has about 3.3 months of condo inventory — seller's market. Demand is outpacing supply, so homes sell quickly with firm pricing and limited room to negotiate.

At about $8,964 a year, this home's property tax runs roughly 12% above the $8,000 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