23 Carpenter Lane, Hauppauge, NY 11788
$889,000 · 4 bed · 3 bath · 1,909 sq ft · built 1965 · MLS# 1020212 · Active
Beautiful Redone Splanch with 4 Bedrooms, 2.5 Bathrooms(Updated), Quartz Kitchen, 2 Car Garage, In Ground Pool ( Chlorine), In Ground Sprinklers, Central Air 1Z, Heat 2 Zone,200 Amp, Wood Floors, Luxury Vinyl Flooring, LED Hi Hats, Desirable Hauppauge Schools and MORE !
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 $889,000 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 $13,354 a year, this home's property tax runs roughly 11% 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

Listings courtesy of OneKey® MLS as distributed by MLS GRID.
Based on information submitted to the MLS GRID as of October 11, 2026 3:30 am. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
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Hauppauge Market Trend
Hauppauge has tightened over the past 2 years: the median sale price has advanced roughly 9% year over year to near $843K, and sales have generally been closing faster. Conditions continue to favor sellers; if the trend holds, prices could keep firming.
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Looking for off-market opportunities or a property attorney's read on this listing? Contact Joseph DeVito — Lic. R.E. Associate Broker + NY-licensed real estate attorney.
