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575 MADISON AVENUE, NEW YORK, NY 10022. 212.891.7000 © 2025 DOUGLAS ELLIMAN REAL ESTATE. EQUAL EMPLOYMENT OPPORTUNITY PROVIDER. ALL MATERIAL PRESENTED HEREIN IS INTENDED FOR INFORMATION PURPOSES ONLY. WHILE THIS INFORMATION IS BELIEVED TO BE CORRECT, IT IS REPRESENTED SUBJECT TO ERRORS, OMISSIONS, CHANGES, OR WITHDRAWAL WITHOUT NOTICE. ALL PROPERTY INFORMATION, INCLUDING, BUT NOT LIMITED TO SQUARE FOOTAGE, ROOM COUNT, NUMBER OF BEDROOMS, AND THE SCHOOL DISTRICT IN PROPERTY LISTINGS SHOULD BE VERIFIED BY YOUR OWN ATTORNEY, ARCHITECT, OR ZONING EXPERT. EQUAL HOUSING OPPORTUNITY.LISTING DATA REFRESHED ON OCT 19 2025 AT 3:20 AM.

DOUGLAS ELLIMAN IS A LICENSED REAL ESTATE BROKER IN CALIFORNIA WITH LICENSE # 01947727, COLORADO WITH LICENSE # EC100053892, CONNECTICUT WITH LICENSE # REB.0314827, THE DISTRICT OF COLUMBIA WITH LICENSE # REO40000160, FLORIDA WITH LICENSE # CQ1020232, MARYLAND WITH LICENSE # 645270, MASSACHUSETTS WITH LICENSE # 422764, NEVADA WITH LICENSE # 1454643, NEW JERSEY WITH LICENSE # 0572105, NEW YORK WITH LICENSE # 10991211812, TEXAS WITH LICENSE # 9008706, AND VIRGINIA WITH LICENSE # 0226035659.

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3875 Hallock Ln

mattituck, NY 11952

$7,500,000

  • 5 BR
    7 BA, 1 HALF BA
    APPROX. 8,505 SF
  • logodouglas elliman exclusive

INTERESTED? LET'S CONNECT

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. Pool permit pending.

Details

8,505 Sq Ft

3.3 Private Acres Lot Size

Single Family Home

$42,666 Annual Tax

Built in 2002

MLS/Listing ID 907439

Amenities & Features

Sound

Range

Refrigerator

Balcony

Hardwood

Heating - Propane

Heating - Forced Air

Walk-in Closets

Pantry

Master Downstairs

Entrance Foyer

Eat-in Kitchen

Cathedral Ceilings

Parking - Private

Parking - Attached

Porch

Patio

Water View

Panoramic View

Washer

Style - Estate

Stainless Steel Appliance(s)

Cooling - Central Air

Construction - Frame

Dishwasher

Dryer

Microwave

Oven

Beach Access

Beach Front

Water Access

Waterfront

ONEKEY

Source of Data: ONEKEY MLS

estimate my mortgage

TOTAL MONTHLY COST

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  • PRINCIPAL & INTEREST

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  • PROPERTY TAXES

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  • COMMON CHARGES

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HOME PRICE
DOWN PAYMENT
term
INTEREST

Interested in 3875 Hallock Ln?