For Sale

3875 Hallock Lane Mattituck, NY 11952

$5,750,000

Listed September 1, 2025, 381 days ago

Listing courtesy of Kristy B. Naddell, Douglas Elliman Real Estate MLS #KEY907439

  • 5Bedrooms
  • 7.5Bathrooms
  • 8,505Square feet
  • $676Per square foot
  • 2002Year built

About this home

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 living. The finished lower level offers a professional gym, billiard room, and custom bar, while the upgraded garage with epoxy floors and smart tech is ideal for car enthusiasts. Outdoors, enjoy a new dining pavilion, full irrigation, and multiple vantage points for stunning sunsets over the Sound. Perfectly located near vineyards, farm stands, and charming village life, Lion’s Gate on the Sound is more than a home, it’s a legacy estate of luxury, seclusion, and natural beauty. Seller working to obtain pool permit.

Description supplied by the listing broker.

Features

  • First Floor Bedroom
  • First Floor Full Bath
  • Cathedral Ceiling(s)
  • Eat-in Kitchen
  • Entrance Foyer
  • Formal Dining
  • Pantry
  • Primary Bathroom
  • Master Downstairs
  • Quartz/Quartzite Counters
  • Walk-In Closet(s)

Property details

Interior

Attic
Walkup
Kitchens
1
Additional rooms
Dining Area,Home Office,Library/Den,Loft,Media Room
Flooring
Hardwood
Levels
Tri-Level
Fireplace
Yes
Fireplaces
4
Appliances
Dishwasher, Dryer, Microwave, Oven, Range, Refrigerator, Stainless Steel Appliance(s), Washer, Indirect Water Heater

Systems and utilities

Heating
Forced Air, Propane
Heating zones
6
Cooling
Central Air
Utilities
Electricity Connected
Water
Well

Exterior and lot

Construction
Frame
Architectural style
Estate
Parking
Attached, Private
Patio and porch
Patio, Porch
View
Panoramic, Water
Waterfront
Beach Access, Beach Front, Sound, Water Access, Waterfront

Tax and legal

Parcel number
1000-112-00-01-00-008-004
Listing agreement
Exclusive Right To Sell

Property details supplied by the listing broker through OneKey MLS, as of September 18, 2026. Fields not shown were not supplied and should not be read as absent from the property.

This listing

Reduced 32% from the original asking price of $8,500,007.

  1. September 1, 2025 Listed at $5,750,000 381 days ago

Location

3875 Hallock Lane, Mattituck, NY 11952

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