3875 Hallock Lane Mattituck, NY $ 7,500,000
3875 Hallock Lane
$ 7,500,000
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3875 Hallock Lane

Mattituck, NY, 11952
$ 7,500,000
Bedrooms5 Baths7.1 Sq 8,505

Monthly Estimate*

$ 46,790

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Single Family Home for sale in Mattituck, NY

for $7,500,000 with 5 bedrooms and 7 full baths, 1 half bath. This 8,505 square foot home was built in 2002 on a lot size of 3.3.

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.

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Single Family Active

Price

$ 7,500,000

Bedrooms

5

Full Bath

7

Half Bath

1

Property Type

Single Family

Taxes

$ 42,666

Style

Estate

Lot Size

3.3

Year Built

2002

Town/City

Mattituck

County/Region

Suffolk

MLS | Web ID

907439

Features
Interior
Interior Amenities 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)
Basement Finished Full
Flooring Hardwood
Total Fireplaces 4
Basement Features Finished Full
Basement (Y/N) Y
Fireplace Y/N Y
Half Baths 1
Total Bedrooms 5
Total Baths 8
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General
Sewer Cesspool
Heating Forced Air Propane
Cooling Central Air
Utilities Electricity Connected
Appliances Dishwasher Dryer Microwave Oven Range Refrigerator Stainless Steel Appliance(s) Washer Indirect Water Heater
Garage Spaces 3
Patio/Porch Features Patio Porch
Architectural Style Estate
Construction Materials Frame
Year Built 2002
View Panoramic Water
Property Subtype Single Family Residence
Tax Year 2025
Parcel Number 1000-112-00-01-00-008-004
Waterfront Features Beach Access Beach Front Sound Water Access Waterfront
County Suffolk County
Property Type Residential
HOA N
Garage Y/N Y
Total Rooms 20
Full Baths 7
High School Mattituck Junior-Senior High School
City Southold
Senior Community Y/N N
High School District Mattituck-Cutchogue
Carport Y/N N
Elementary School Mattituck-Cutchogue Elementary Sch
Property Attached Y/N N
Tax Annual Amount 42666
Showing Instructions Call/Text Kristy
Middle/Junior High School Mattituck Junior-Senior High School
Additional Parcels Y/N N
Virtual Tour https://next.frame.io/share/1d50045f-51b0-465c-a394-1f67ecde7117/view/c7f622ed-7066-46d4-9946-d7a124ee4f36
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Mattituck-Cutchogue
Elementary School District Mattituck-Cutchogue
Tax Assessed Value 26200
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Exterior
Exterior Amenities Balcony
Parking Features Attached Private Attached Private
Water Source Well
Waterfront Y/N Y
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Internal Only
Street Number 1 3875
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* Excluded Features
List By
Kristy B. Naddell

Listing Agent

Douglas Elliman Real Estate

Broker

631-354-8100

Contact

Affordability Calculator

$50,346
Per Month
93%
7%
0%
Monthly Principal & Interest
$46,790
Monthly Property Taxes
$3,556
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
4100006 Elementary School
4099858 Middle School
Mattituck Junior-Senior High School High School
Pricing History
DatePricePrice ChangeDescription
10/17/2025$7,500,000 -11.76% Price Down
9/2/2025$8,500,000 Listed Price

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3875 Hallock Lane, Mattituck, NY, 11952 is a Single Family Home for sale at $7,500,000 with 8,505 sqft and a lot size of 3.3. 3875 Hallock Lane has 5 bedrooms, 7.1 baths, and was built in 2002. The property's zip code is 11952 which is in Mattituck, NY