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    1 home
      1 home available
      317 Old Mill Road, Nissequogue, NY 11780
      Closed Sep 24, 2025
      317 Old Mill Road, Nissequogue, NY 11780
      $2,799,000
      4beds
      4.5bath
      4,250sqft
      2.66acres
      House for Sale

      317 Old Mill Road, Nissequogue, NY 11780

      Listing by: Daniel Gale Sothebys Intl Rlty
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      Copyright © 2026 OneKey® MLS LLC
      Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
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      Membio
      OneKey® MLS
      317 Old Mill Road, Nissequogue, NY 11780
      Closed Sep 24, 2025
      $2,799,000
      4beds
      4full,1half bath
      4,250sqft
      2.66acres

      317 Old Mill Road, Nissequogue, NY 11780

      City/Town:Nissequogue   Post Office: Nissequogue     

      House for Sale by Bonnie GlennDaniel Gale Sothebys Intl Rlty.

      Data checked -. Listing last updated 106 days ago.
      1. Overview
      2. Details
      3. More 

      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.

      Internet Serviceability
      Details
        Property type
      Residential
        Year built
      2023
        Heating
      Electric, ENERGY STAR Qualified Equipment, Forced Air, Heat Pump, Propane, Solar
        Cooling
      Central Air
        Total rooms
      11
        Garage
      Yes (3 space)
        City/Town
      Nissequogue
        Post Office
      Nissequogue
        Parking spots
      -
      878416
      MLS ID
      Closed
      Status
      Sep 24, 2025
      Closed
        Laundry features
      Electric Dryer Hookup, Inside, Laundry Room, Washer Hookup
        Flooring
      Ceramic Tile, Hardwood
        Fireplace
      Yes
        Pets allowed
        Architectural Style
      Colonial, Farmhouse
        Basement
      Full, Partially Finished, Storage Space
        View
      Interior features
      First Floor Bedroom, First Floor Full Bath, Bidet, Breakfast Bar, Built-in Features, Cathedral Ceiling(s), Ceiling Fan(s), Chefs Kitchen, Double Vanity, Eat-in Kitchen, ENERGY STAR Qualified Door(s), Entrance Foyer, Formal Dining, Granite Counters, High Ceilings, High Speed Internet, Kitchen Island, Low Flow Plumbing Fixtures, Primary Bathroom, Master Downstairs, Open Floorplan, Open Kitchen, Pantry, Quartz/Quartzite Counters, Recessed Lighting, Smart Thermostat, Soaking Tub, Storage, Walk-In Closet(s), Washer/Dryer Hookup, Wet Bar, Wired for Sound
      Exterior features
      Balcony, Fire Pit, Mailbox, Rain Gutters
      Lot features
      Back Yard, Front Yard, Landscaped, Level, Part Wooded, Private, Sprinklers In Front
      Appliances included
      Convection Oven, Dishwasher, Dryer, Electric Oven, Electric Water Heater, ENERGY STAR Qualified Appliances, Exhaust Fan, Gas Range, Humidifier, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer, Water Purifier Owned, Wine Refrigerator
      Construction materials
      Advanced Framing Technique, Cedar, Frame, HardiPlank Type
      Monthly taxes
      $3,424
      Yearly taxes
      $41,089.7
      Community Features
      -
      School district
      Smithtown
      Schools
      St James Elementary School, Nesaquake Middle School, Smithtown High School-East
      Senior community
      No
      Common Charges
      -
      Maintenance
      -
      Additional Fees
      -
      Open Houses
      In-Person
      No upcoming in-person open houses
      Virtual
      No upcoming virtual open houses
      Contact Agent
      Bonnie Glenn
      Bonnie Glenn
      Associate Real Estate Broker, Daniel Gale Sothebys Intl Rlty
      Direct Number 
       
      Location
      25A to Moriches Rd./ Left on Old Mill Rd/ follow to #317 on left. OR Edgewood Ave to River Rd./ Bear right on Old Mill Rd. to #317 on right
      For Sale Nearby
      No nearby homes are For Sale Nearby.
      Recently Sold
      No nearby homes have been Recently Sold.
      317 Old Mill Road, Nissequogue, NY 11780, is a 4 bedroom, 4 bathroom, 4250 sqft. Single Family Residence built in 2023. This property is currently available for sale and was listed on OneKey® MLS on 6-16-2025. The MLS# for this Single Family Residence is MLS# 878416.
      Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
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