26 Williams Avenue, Holtsville, NY 11742

$649,000 · 3 bed · 3 bath · 2,080 sq ft · built 1960 · MLS# 1057713 · Active

Welcome to this well-maintained 3-bedroom, 3-bath ranch situated on a flat .46-acre property in Holtsville. The home features a vinyl and brick exterior, Andersen windows, hardwood oak, vinyl and tile flooring, and a spacious layout with plenty of natural light. The living area features a fireplace, while an additional wood-burning stove adds warmth and character. The kitchen offers a new refrigerator and range, along with ample cabinetry and counter space. A full finished basement provides additional living space and plenty of storage. Additional features include 200-amp electric, a boiler installed…

Single-family homes in the Sachem Central School District sold for a median of $680,000 (typically $600,000–$750,000) across 501 recorded sales between Oct 17, 2025 and Oct 2, 2026, up 4.6% on the 12 months before. This home's $649,000 list price sits in the mid-market single-family tier for the Sachem Central School District.

ZIP 11742 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 $12,776 a year, this home's property tax runs roughly 16% above the $11,000 typical for Sachem Central 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