Experience luxury and tranquility with this extraordinary Simi Valley estate. Set on a 43,560 sqft lot, this 4-bedroom, 4.5-bathroom home offers 4,450 sqft of living space, seamlessly blending elegance and modern comfort. Built in 2006, the main house features a grand entryway, spacious living areas, and a chef s kitchen with a Sub-Zero fridge, double oven, garbage compactor, dishwasher (updated in 2018), and a bay window overlooking the heated saltwater pebble pool and spa, remodeled in 2017. A breakfast nook with additional bay windows offers serene views. The primary suite boasts a cathedral ceiling, spa-like bathroom with soaking tub, double vanities, walk-in shower, and double-sided fireplace, along with an oversized walk-in closet. Ballroom-style flooring, a waterfall chandelier, and French doors leading to the pool complete the living area. Window shutters and high-speed internet with Eero extenders enhance functionality. Additional living spaces include a remodeled in-law suite with two bedrooms, two bathrooms, a full kitchen, and laundry, a 2017 guesthouse with a kitchenette and stylish bathroom, and a detached office/game room with an electric fireplace and heater. The three-level backyard is an entertainer s dream with a heated saltwater pool, spa, a pond, a covered patio with built-in BBQ, and a Japanese Teppan grill. A stargazing terrace, picnic area, firepit, and water features add charm, while mature fruit trees provide natural beauty. The remodeled three-car garage offers pebble flooring, an EV charging port, and fridge and freezer, while gated RV parking includes water and electrical hookups. Additional features include 66 fully paid solar panels, a security system with ADT and Ring cameras, and a surround sound system. Please note: Sinaloa Lake membership provides access to exclusive docks, picnic areas, and fishing. This one-of-a-kind estate offers unmatched versatility, privacy, and elegance in Simi Valley.