1663 Claas Avenue No stone left unturned in this gorgeous, meticulously maintained Hi-Ranch located in the desirable Sachem School District! Pride of ownership shines throughout this super clean, spacious home offering a thoughtful blend of timeless design and modern updates. The upper level features a beautifully renovated eat-in kitchen with breakfast peninsula, stainless steel appliances, soft-close cabinetry, Quartz countertops, gas cooking, pantry storage, and an open flow into the formal dining area and living room-perfect for everyday living and entertaining alike. Light hardwood floors upstairs were freshly refinished in 2025, enhancing the bright and airy feel throughout. Three bedrooms, all with hardwood floors, plus a stunningly renovated bathroom (completed just three years ago) featuring a dual vanity, elegant tile work, and built-in shelving for additional storage round out the upstairs. Pull-down stairs provide easy access to a full attic for even more storage. The fully renovated lower level (2021) was completely gutted and reimagined, offering luxury vinyl plank flooring, a brand-new full bathroom, sliders leading to the back patio, a fourth bedroom, and a spacious open living area-ideal for guests, extended family, or flexible living space. There's also a 1 car garage, an oversized driveway, and a spacious backyard with a shed. Extensive updates include - June 2025: 50-year GAF roof with transferable warranty, new gutters, and trim, September 2023: Three ductless units with heat pumps (primary bedroom, upstairs living room, downstairs bedroom), August 2022: New asphalt driveway, 2017: New garage door with automatic opener, 2014: Gas conversion with new boiler and gas-fired hot water heater, Young windows with transferable warranty, July 2012: New cesspool and overflow, and an upgraded 200-amp electrical panel with whole-house surge protector! True taxes of just $10, 157.26! This move-in-ready home checks every box-space, style, updates, and peace of mind-all in a fantastic location. A truly turnkey (and rare!) opportunity not to be missed!