Welcome to 66 Blueberry Ridge Drive, a refined residence set within the gated community of Summerfield in Holtsville. Step through the grand double doors into an impressive two-story foyer, where a graceful staircase sets an elegant tone. Hardwood flooring flows throughout, and Andersen windows, newer across the front, fill each room with natural light. The large eat-in kitchen, with quartz countertops and stainless steel appliances, is made for everyday living. Beyond it, the formal dining room is ready for entertaining, with custom cabinetry. The living room centers on a natural gas fireplace, and Andersen sliders open to the backyard. A laundry room on the first floor offers convenience. Upstairs, the primary suite is a true retreat. It has a tray ceiling, custom molding, a sitting area, and a custom California Closet walk-in. The primary bath features radiant heated floors and a shower with a built-in Thermasol steam system. Three additional bedrooms complete the upper level, along with an oversized, beautifully tiled second bath. The second bedroom also features a custom California Closet system. The entire home offers just over 4,700 sq ft including the spectacular finished lower level which is approximately 1,400 square feet alone. The lower level has a private, separate entrance, its own washer and dryer, and an approximately 12-by-12-foot custom California Closet walk-in, offering plenty of room for extended family. The backyard is a resort of its own. A heated saltwater in-ground pool, approximately 30 feet long with a new liner in 2025, sits beside an outdoor kitchen with a bar with sink and a chef's BBQ. A pool shed (2018) adds convenient storage. Pavers extend throughout the patio area, and an outdoor fireplace makes the space comfortable well into the evening. At the front, the updated driveway, front stoop and pavers create a polished welcome. Peace of mind comes easily here. The roof and exterior siding were both completely redone in 2019, the air conditioning systems are about six years young; and there is a Generac 22kW natural-gas whole-house standby generator (2021). The home is also equipped with an EcoWater whole-house water treatment system and reverse-osmosis drinking water system, along with a security camera system. The Summerfield community offers a full range of amenities for residents, including a clubhouse, gym, pool, playground, and on-site childcare. Elegant, thoughtfully updated, and ready to be called home, all within the Sachem School District.