Rarely does a property let you buy into the $1.6M range while owning a $2M+ estate. 4 Long Hill Road is a rare convergence of scale, sophisticated design, and built-in income, a legal Accessory Dwelling Unit above the oversized three-car garage that can offset your monthly payment by an estimated $3,500, effectively bringing your carrying cost in line with a $1.66M home. Set back in a prestigious Stratham enclave, the main residence spans over 4,700 square feet of meticulously updated living space, with four-plus bedrooms, three bathrooms, and a layout built for both everyday living and high-end entertaining. A radiant-heated driveway leads to a three-car garage that feels more like a designer showroom than a place to park. Inside, large windows and thoughtful finishes create a home that's polished, warm, and move-in ready. The finished walkout basement extends the living space outdoors, ideal for a media room, home gym, or lounge, while the private in-ground pool and hot tub complete a true backyard oasis. The standout, though, is the fully legal ADU above the garage - a flexible space for long-term guests, a private home office, or, as structured here, a steady stream of rental income that changes the math on what this home actually costs you to own. For buyers who've been priced out of $1.6M homes without the space, finishes, or land this property offers, 4 Long Hill Road presents a compelling alternative: buy at the top of the market, and let the ADU bring your effective cost back down to earth.