15 Horseshoe Road, Old Westbury, NY 11568

$4,250,000 · 5 bed · 9 bath · 5,291 sq ft · built 1977 · MLS# 1061924 · Active

A rare architectural offering in the heart of Old Westbury, 15 Horseshoe Road is a striking Norman Jaffe-designed residence where dramatic form, natural materials, and the surrounding landscape come together in extraordinary fashion. Set on over two beautifully landscaped acres, this distinctive 5-bedroom, 7-bath home offers exceptional privacy, expansive outdoor living, and a spectacular 25' x 50' gunite swimming pool, all within one of Long Island’s most prestigious communities. From the moment you enter, Jaffe’s unmistakable architectural vision is on full display. A dramatic foyer with soaring approximately 30-foot ceilings…

Single-family homes in the East Williston Union Free School District sold for a median of $1,650,000 (typically $1,225,000–$2,150,000) across 55 recorded sales between Oct 17, 2025 and Oct 1, 2026, up 3.1% on the 12 months before. This home's $4,250,000 list price sits in the luxury single-family tier for the East Williston Union Free School District.

At about $78,403 a year, this home's property tax runs roughly 241% above the $23,000 typical for East Williston Union Free School District. Nassau assessments run on a multi-year cycle, so the assessed value behind this bill can lag what the home actually sells for today. A sale does not automatically reset it, and 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