550 Moriches Road, Head Of The Harbor, NY 11780

$3,699,000 · 5 bed · 8 bath · 7,000 sq ft · built 2026 · MLS# 1037676 · Active

A Rare Opportunity to Create Your Custom Estate on Long Island Opportunities like this are exceptionally rare on Long Island. Set within one of the area’s most prestigious and private villages, this extraordinary new-construction estate offers the space, privacy and ability to customize that are increasingly difficult to find. Privately positioned on a breathtaking 2.35-acre wooded property with an additional one-acre private driveway, this impressive 7,000+ square-foot residence has been thoughtfully designed to combine timeless architecture with today’s most sought-after luxury amenities. Construction has progressed to the point where private…

Single-family homes in the Smithtown Central School District sold for a median of $845,000 (typically $735,000–$995,000) across 440 recorded sales between Oct 6, 2025 and Oct 2, 2026, up 5% on the 12 months before. This home's $3,699,000 list price sits in the luxury single-family tier for the Smithtown Central School District.

ZIP 11780 has about 3.6 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 $5,186 a year, this home's property tax runs roughly 65% below the $15,000 typical for Smithtown 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