133B Shinnecock Avenue, Mastic, NY 11950

$690,000 · 4 bed · 3 bath · 2,519 sq ft · built 2026 · MLS# 1017917 · Active

90% COMPLETED! Your opportunity to own this attractive new construction is here! With construction nearly finished, now is the time to view this house, fall in love, and make your offer before it's gone. Venture inside to discover exquisite hardwood floors that stretch across the expansive layout, offering a warm and inviting atmosphere. The home features four generously sized bedrooms and three bathrooms, each designed with comfort and style in mind. The home's heart, a gourmet eat-in kitchen, is adorned with sleek quartz countertops, all set to inspire your culinary…

Single-family homes in the William Floyd Union Free School District sold for a median of $510,000 (typically $430,000–$580,000) across 494 recorded sales between Oct 6, 2025 and Oct 2, 2026, up 5.2% on the 12 months before. This home's $690,000 list price sits in the luxury single-family tier for the William Floyd Union Free School District.

ZIP 11950 has about 2 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 $700 a year, this home's property tax runs roughly 91% below the $8,000 typical for William Floyd 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