123 Old Post Drive, Hauppauge, NY 11788

$895,000 · 4 bed · 3 bath · 2,510 sq ft · built 1976 · MLS# 1053764 · Active

Welcome to 123 Old Post Drive, a spacious and beautifully maintained 4-bedroom, 3-bath Colonial set on an oversized property in the heart of Hauppauge. This inviting home features a formal living room, formal dining room, and a warm and comfortable family room with a wood-burning fireplace. The bright kitchen offers generous cabinetry, ample counter space, and stainless-steel appliances. Beautiful hardwood floors, Pella and Andersen windows, and generously sized rooms add to the home’s appeal. A fully finished basement provides valuable additional living and entertaining space, while the 2-car garage and…

Single-family homes in the Hauppauge Union Free School District sold for a median of $850,000 (typically $750,000–$1,000,000) across 144 recorded sales between Oct 6, 2025 and Sep 30, 2026, up 8.3% on the 12 months before. This home's $895,000 list price sits in the mid-market single-family tier for the Hauppauge Union Free School District.

ZIP 11788 has about 2.7 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 $14,987 a year, this home's property tax runs roughly 25% above the $12,000 typical for Hauppauge 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