3875 Hallock Lane, Mattituck, NY 11952

$5,750,000 · 5 bed · 8 bath · 8,505 sq ft · built 2002 · MLS# 907439 · Active

Welcome to Lion’s Gate on the Sound, a premier waterfront estate set on over 3 private, gated acres along the Long Island Sound in Mattituck. This move-in-ready sanctuary blends timeless architecture with modern luxury, offering unmatched privacy and sweeping coastal views. A newly resurfaced driveway leads through electronic gates to beautifully lit grounds featuring a restored gazebo, lush lawns, and thoughtful landscaping. Inside, the home shines with freshly refinished hardwood floors, custom details, and a reimagined primary suite with spa-like finishes. Smart-home automation, new TVs, and elegant upgrades enhance everyday…

Single-family homes in the Mattituck-Cutchogue Union Free School District sold for a median of $999,000 (typically $800,000–$1,580,000) across 120 recorded sales between Oct 7, 2025 and Oct 2, 2026, down 10.4% on the 12 months before. This home's $5,750,000 list price sits in the luxury single-family tier for the Mattituck-Cutchogue Union Free School District.

At about $43,945 a year, this home's property tax runs roughly 339% above the $10,000 typical for Mattituck-Cutchogue 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