Welcome to 15 Sweet William Drive, a stunning custom-built Colonial nestled on more than 3 private acres in much sought-after Augustine at the Glens. 6 Bedrooms, 4 1/2 Baths. This exceptional residence (built in 2019) offers over 5,000 sq ft of thoughtfully designed living space, blending timeless elegance with modern comfort. A stately front porch with classic columns, an oversized circular driveway and a side-load garage create a memorable 1st impression. Inside, you'll find 9 foot ceilings, a dramatic open staircase, a spacious great room w/striking coffered ceiling, engineered hardwood flooring, upgraded carpet, recessed lighting, and a cozy gas log fireplace. Formal living and dining rooms are showcased with double crown moldings and a main level professional office provide flexible space for remote work, hobbies, or additional 6th bedroom/guest accommodations. The gourmet kitchen is designed to impress, featuring custom white cabinetry, quartz surfaces, a farm-house sytle sink, double wall ovens, a five-burner gas cooktop, an oversized work-island and a touchscreen French-door refrigerator. The adjoining sun/morning room fills the space with natural light and offers convenient access to the outdoor living space. Step outside to enjoy the beautifully designed stone patio complete with seating, a firepit, and ambient lighting- an ideal setting for outdoor entertaining, relaxing evenings, and memorable gatherings. The upper level includes spacious bedrooms, a luxurious owners suite featuring a sitting area, dual walk-in closets, and a spa-inspired lavish bath designed for everyday opulent pleasure. The finished lower level expands the homes versatality with a 2nd kitchen, an additional bedroom, a full bath, and a fitness/gym space... Perfect for extended stays, recreation, or multi-functional living arrangements. Additional highlights include a dual-zone HVAC system, upgraded internet infra-structure for the entire home, EV charging in garage for vehicle or even your RV. There's also abundant storage, plenty of space outside to create another ADU, or park an RV, another detached garage or even a pavillion. Schedule your private showing to discover all the possibilities in this most desirable home in the most desirable community at the Glens in Augustine!