55 Rose Lane, Mount Sinai, NY 11766

$548,888 · 2 bed · 2 bath · 1,272 sq ft · built 2006 · MLS# 1053728 · Active

Well-maintained and upgraded 2-bedroom, 2-full-bath Dorchester Model in Plymouth Estates, a 55+ community. This desirable first-floor model with a full basement features a spacious living room with built-in cabinetry with fireplace and hardwood floors. The eat-in kitchen offers upgraded expanded cabinetry, granite countertops, stainless steel appliances, and a center island with seating. The primary suite with built ins includes a private bath and walk-in closet. Sliders lead to a private rear upgraded covered brick patio, while a front porch provides additional outdoor space. Full basement with cedar closet, extensive storage…

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 $6,996 a year, this home's property tax runs roughly 13% below 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