Stunning updated colonial in the award-winning Niskayuna School District offering three thousand six hundred plus finished square feet! Located in one of Niskayuna's most desirable non-through neighborhoods where kids ride bikes and neighbors gather, eighteen County Clare blends luxury updates, functional living space and the move-in ready lifestyle today's buyers are searching for. Inside, the remodeled kitchen anchors the home with custom cabinetry, General Electric Profile appliances, cabinet-faced refrigerator, wood hood vent, pantry storage and ideal layout for entertaining and everyday living. Hardwood floors flow throughout much of the home and are complemented by refinished hardwoods, massive stone fireplace in family room, oversized bay window, updated half bathroom, mudroom and newer ThermaTru Mission front door. The luxury primary suite features a sitting area with French doors, oversized walk-in closet and remodeled spa-like bathroom with marble tile, soaking tub and dual vanity, while a dedicated first floor office/flex room offers ideal work-from-home space or potential fifth bedroom. Upstairs bedrooms offer generous space, custom closet systems and access to a large updated full bathroom with double vanity. Finished basement adds approximately eight hundred ninety additional finished square feet featuring theater room with seven point two surround sound, high-definition projector, dedicated control room and stadium seating included with sale, plus private office with California Closets built-ins and bonus flex space! Outside, the backyard transforms into a private oasis with extensive patio pavers surrounding the heated in-ground pool and pool house, while the outdoor gas firepit, vinyl fencing, basketball hoop and jungle gym create the ultimate entertaining space. Major updates include Champion siding/windows with a transferable lifetime warranty, remodeled kitchen and bathrooms; newer central air conditioning; new furnace (2025); new pool liner; new pool safety cover; drainage improvements; water softener; French drain system; and more! Rarely does a home offer this level of updates, entertaining space and lifestyle in Niskayuna!