142 Round Swamp Road is a custom-built, recently renovated private estate - sitting on over 2 acres of a gated, beautifully-landscaped property in coveted West Hills. Hidden behind a 600-ft. winding driveway, this brick, center hall colonial home was once part of the Wallace K. Harrison estate, and is primely located on the on the cusp of Melville and Huntington - equally distant between NYC and the Hamptons. Walking in through the brand-new double iron doors, you're greeted with a sprawling staircase and foyer featuring custom molding and details throughout the home, and the main hub for your Crestron Smart Home system. The formal living area to the right of the entrance leads to a dark-wooded library/study with the first of five fireplaces. Tucked behind double French doors is a sunny and open breakfast nook, which connects the kitchen and den - where you can enjoy reading and relaxing by the fire, or taking in the beautiful views of the expansive yard. Featuring stunning quartzite countertops, paneled appliances and plenty of storage, this kitchen is truly the heart of the home - centered around a large island with seating and illuminated by vintage lighting fixtures. Off the main is a prep kitchen, with copper sink, freezer and custom cabinetry - ideal for entertainment, no matter the season. Easily enter and exit the home from the 3-car garage into the mudroom. Toward the back of the home is a second staircase for efficient access to the second floor, a main floor bedroom, and shiplapped den with third fireplace and powder room. Ascending the grand staircase to the second floor leads to another set of French doors that open to a large balcony - allowing for natural light to enter the hallways and provides stunning views of the property. The primary suite is situated on the right wing of the home - complete with the fourth fireplace, multiple walk-in closets, vanity room and oversized bathroom with Bain air tub, and home gym. Four other bedrooms, each featuring a full walk-in closet, are on the second floor; sharing two, refreshed bathrooms. For added convenience, the laundry room was moved to the second floor for easier access to all bedrooms.The newly-finished lower level spares no detail - complete with the seventh bedroom, fourth full bathroom, second kitchen and an open-concept floor plan. Currently used as an expansive game room, the lower level also features a separated entertainment room/theater - providing quiet and privacy for a cozy movie night. Outside, the backyard space offers a luxury, resort-like set-up. An expansive bluestone patio, with direct access to the kitchen, is the ideal spot for summer, alfresco dining. Enjoy poolside drinks in the cabana - with outdoor wet bar, and additional, shaded seating. Soak up a tan in the heated Gunite pool and Jacuzzi. This unmatched estate provides luxury, privacy and comfort - conveniently located in the center of Long Island. Discover the incomparable lifestyle that 142 Round Swamp Road offers its homeowners. Additional features include full, walk-up attic, whole-house water filtration system and generator.