11 Arbutus Lane, Stony Brook, NY 11790

$3,750,000 · 5 bed · 6 bath · 5,000 sq ft · built 1910 · MLS# 1050240 · Active

Welcome to “Westwinds,” one of the original and most iconic waterfront estates in Stony Brook Village. Privately set on 3.2 acres, this extraordinary property enjoys panoramic views of Stony Brook Harbor, West Meadow Creek, and Long Island Sound, with direct access to the water. Originally built in 1910, Westwinds retains many of its distinctive historic details while thoughtfully incorporating custom enhancements and continual upgrades that preserve and elevate its timeless beauty. The magnificent 1,428-square-foot Grand Ballroom, featuring soaring 11.5-foot ceilings, serves as the spectacular centerpiece of the home. Anchored by…

Single-family homes in the Three Village Central School District sold for a median of $835,000 (typically $730,000–$990,000) across 338 recorded sales between Oct 4, 2025 and Oct 1, 2026, up 9% on the 12 months before. This home's $3,750,000 list price sits in the luxury single-family tier for the Three Village Central School District.

ZIP 11790 has about 2.1 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 $39,717 a year, this home's property tax runs roughly 134% above the $17,000 typical for Three Village 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