Welcome to 5416 Trabuco Court, an exquisite estate nestled in a serene cul-de-sac in the desirable Alta Loma area of Rancho Cucamonga. Part of the prestigious Carlsbad Series by Toll Brothers, this distinguished home offers 5 spacious bedrooms and 5.5 bathrooms, each with a private en-suite, across 4,671 square feet of thoughtfully designed living space on a generous 0.61-acre lot. From the moment you enter the grand two-story foyer, you're greeted by a dramatic dual circular staircase, elegant marble flooring, and an oversized chandelier with a convenient automatic lift. The home showcases timeless architectural design, custom finishes, and abundant natural light throughout. A chef’s dream, the gourmet kitchen features a massive granite island, high-end stainless steel appliances including dual ovens and a 6-burner cooktop, a walk-in pantry, a butler’s pantry with wine chiller, and a cozy breakfast nook. The luxurious primary suite offers a private retreat complete with a spacious sitting area, custom built-ins, a resort-style bathroom with Roman tub, dual-head walk-in shower, and two separate water closets. Upstairs, enjoy stunning views from two balconies—one with panoramic mountain vistas, the other with sparkling city lights. Additional highlights include a mother-in-law suite on the main floor, a library/office, a spacious laundry room with sink, custom shutters throughout, and upgraded flooring in key living areas. For added versatility and convenience, the attached four-car garage features a fully equipped summer kitchen—perfect for outdoor entertaining, catering events, or preparing meals without heating the main house. Step outside to beautifully landscaped grounds with a lush green yard, fruit trees, with plenty of space to design your dream pool, garden, or outdoor retreat. Located in a tranquil, equestrian-friendly community with direct access to horse trails, this home offers privacy, luxury, and outdoor lifestyle in one perfect package. With no HOA, no Mello-Roos, and a low 1.11% tax rate, this estate is not only a lifestyle upgrade but a smart investment. Don’t miss this rare opportunity to own a true Rancho Cucamonga gem—where grandeur meets functionality, and nature meets luxury.