Welcome to this extraordinary custom estate in highly sought-after Waterstone Estates! Situated on a beautifully landscaped one-acre lot, this impressive 5,553-square-foot residence offers 4 bedrooms, 4 full bathrooms, an oversized attached 3-car garage, and exceptional indoor and outdoor living spaces. Rich hardwood floors, extensive architectural details, and a thoughtfully designed floor plan create an inviting atmosphere throughout. The gourmet kitchen features a massive island, natural stone countertops, Viking stainless steel appliances, a built-in Sub-Zero refrigerator, a 6-burner Viking gas cooktop with pot filler, a butler's pantry, and a large walk-in pantry. The luxurious Primary Suite offers a spa-inspired bath and oversized walk-in closet. A rare second Primary Suite provides a large private bath and an oversized walk-in closet, making it ideal for multi-generational living or guests. The first floor also includes a large third bedroom, an executive study with beamed ceilings, a grand living room with fireplace, and a spacious den with beamed ceilings and a stunning stone fireplace.. Upstairs you'll find a generous fourth bedroom, full bath, and large media room. The covered outdoor living area features an outdoor kitchen and fireplace overlooking the expansive backyard. Beautiful landscaping, flower beds, fruit trees, and open green space create a private retreat. A separate greenhouse-workshop with a fourth garage offers incredible flexibility. The level one-acre lot provides ample room for a future pool, sport court, or additional outdoor amenities. Thirty-six fully paid solar panels convey with the home, helping keep electric bills averaging approximately $40 per month. Spray-foam attic insulation improves comfort and storage, while a Generac whole-house generator provides peace of mind. This remarkable property offers luxury, versatility, efficiency, and exceptional outdoor living in one of McKinney's premier communities.