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THE SOURCE OF THE DISPLAYED DATA IS EITHER THE PROPERTY OWNER OR PUBLIC RECORD PROVIDED BY NON-GOVERNMENTAL THIRD PARTIES. IT IS BELIEVED TO BE RELIABLE BUT NOT GUARANTEED. FOR COLORADO VIEWERS, INFORMATION ABOUT NON-COMMERCIAL PROPERTIES IS PROVIDED EXCLUSIVELY FOR YOUR PERSONAL, NON-COMMERCIAL USE.

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 JUL 20 2025 AT 2:50 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.

POWERED BY PURLIN.AI

317 Old Mill Rd

nissequogue, NY 11780

$2,799,000

  • 4 BR
    4 BA, 1 HALF BA
    APPROX. 4,250 SF
  • contract signed

INTERESTED? LET'S CONNECT

Welcome to "The Hill Valley House," where timeless design and modern luxury come together in perfect harmony. Completed in 2023 with no expense spared, this one-of-a-kind custom estate sits on 2.66 acres of lush, private grounds and offers an extraordinary blend of timeless design and cutting-edge innovation.

Step inside to experience an ambiance of sophistication and comfort, with soaring 10' ceilings throughout, high-end custom treatments, and impeccable finishes. The grand great room is anchored by a stunning dual-sided gas stone fireplace and flows seamlessly into the heart of the home—a spectacular, state-of-the-art gourmet kitchen. Designed for both beauty and function, this culinary showpiece features rich custom wood cabinetry, sleek quartzite countertops with a dramatic waterfall edge, and a large center island with ample seating—perfect for casual dining or elegant entertaining. The kitchen is fully outfitted with top-tier stainless steel appliances, including a professional-grade six-burner gas stove, wine fridge, and an inviting dinette area that overlooks the tranquil backyard.

The first-floor primary suite is a true sanctuary, boasting walls of glass that invite nature in and a spa-inspired ensuite with exquisite tilework, a soaking tub, walk-in shower, custom wood double vanity, and a spacious walk-in closet. A private first-floor office adds convenience and flexibility. Upstairs, three additional bedrooms each feature their own ensuite baths, including one with a private rooftop deck. A second-floor entertainment area with built in speakers and walk-in storage room or office complete the upper level.

One of the crown jewels of "The Hill Valley House" is the screened-in porch—a luxurious outdoor haven designed for year-round enjoyment. Featuring double French doors, a dramatic dual stone gas fireplace, built-in infrared heaters, and a refined dining area, this exceptional space merges indoor elegance with outdoor serenity.

The finished basement includes a dedicated home gym and a vast unfinished area with endless potential—ideal for a media room, wine cellar, or additional living space tailored to your lifestyle.

Adding to the home’s long list of luxuries are a state-of-the-art solar panel system, whole-house water purification, advanced backup power system, smart home technologies, as well as an oversized three-car garage.

Outside, your personal resort awaits—with a heated 19'x36' saltwater in-ground pool, cozy fire pit, and expansive patios—perfect for entertaining or peaceful relaxation.

The Hill Valley House offers a lifestyle that feels like a permanent vacation—set on lush, resort-like grounds, yet just minutes from Long Island Sound beaches, local marinas, restaurants, charming town shops, and Stony Brook University.

Truly, no detail was overlooked in the creation of this exceptional home. From its superior construction to its thoughtfully curated finishes, this is more than a home—it’s a lifestyle. Make this dream property yours today.

Details

4,250 Sq Ft

2.66 Private Acres Exterior Space

Single Family Home

$41,090 Annual Tax

Built in 2023

MLS/Listing ID 878416

Amenities & Features

Washer

Water Purifier Owned

Wine Refrigerator

Wired for Sound

Heating - Electric

Heating - Forced Air

Heating - Heat Pump

Heating - Propane

Heating - Solar

Concrete Perimeter

Ceramic Tile

Hardwood

Gas Fireplace

Living Room Fireplace

Backyard

Partial

Pool - Salt Water

Pool - Vinyl

Covered

Patio

Porch

Screened

Parking - Driveway

Parking - Garage

Parking - Garage Door Opener

Refrigerator

Microwave

Humidifier

Gas Range

Exhaust Fan

Electric Water Heater

Electric Oven

Balcony

Rain Gutters

Cooling - Central Air

Construction - Cedar

Construction - Frame

Construction - Hardi Plank Type

Style - Colonial

Style - Farmhouse

Convection Oven

Dishwasher

Dryer

Double Pane Windows

ENERGY STAR-qualified Windows

Insulated Windows

Pool - Fenced

Pool - Inground

Pool - Outdoor

Pool - Cover

ENERGY STAR Qualified Appliances

Stainless Steel Appliance(s)

Construction - Advanced Framing Technique

Heating - ENERGY STAR Qualified Equipment

Ceiling Fans

Chef's Kitchen

Open kitchen

Washer/Dryer Hookup

Lot - Back Yard

Wet Bar

Walk-in Closets

Storage

Soaking Tub

Smart Thermostat

Open Floor Plan

Master Downstairs

Kitchen Island

High Speed Internet

High Ceilings

Granite Countertops

Entrance Foyer

Eat-in Kitchen

Double Vanity

Cathedral Ceilings

Built-in Features

Breakfast Bar

Recessed Lighting

Pantry

Bidet

Washer Hookup

Laundry Room

Inside

Electric Dryer Hookup

Lot - Private

Lot - Level

Lot - Landscaped

Parking - Private

Listing Courtesy of DANIEL GALE SOTHEBYS INTL RLTY, BONNIE GLENN - 631-921-1494

ONEKEY

Source of Data: ONEKEY MLS

Interested in 317 Old Mill Rd?