1140 Park Avenue, Mattituck, NY 11952

$11,500,000 · 5 bed · 5 bath · 5,000 sq ft · built 1905 · MLS# 1036287 · Active

Welcome to one of the East End's most distinguished estates. This waterfront property, built in the early 1900s, is situated on 3.24 acres and offers 170 feet on one of the North Fork’s most coveted stretches of pristine coastline, overlooking Peconic Bay, This offering represents a legacy opportunity. Upon arrival, the grandeur of the home makes a lasting impression with its sprawling lawn, magnificent trees, manicured grounds, and classic New England-style residence featuring an understated wrap-around porch and porte-cochere entry. Several years ago, the residence underwent a meticulous renovation that…

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 $11,500,000 list price sits in the luxury single-family tier for the Mattituck-Cutchogue Union Free School District.

At about $49,144 a year, this home's property tax runs roughly 391% 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