STUNNING Sienna Quail Hill estate home situated high above city with view on premium cul-de-sac lot! Largest Plan 4 offered by Standard Pacific in this coveted upscale community. This residence combines the best of privacy & luxury living. The 4080SF of interior living space encompasses a formal living & dining room, Chef's dream kitchen w/ generous-sized island, stainless steel appliances & 6 burner range stove. Downstairs private indoor courtyard w/ beautiful custom flooring, fireplace, & large interior glass windows for a cozy retreat. Downstairs offers 1 full bedrooms & 1 full bath with a separate executive office with built in custom cabinets, 2 car garage. Upstairs loft area with bar and beautiful french doors leading to over-sized balcony with views of city lights and Irvine Spectrum. Extravagant master bedroom w/ separate retreat currently used as a private gym. Spa-inspired master bath w/ his-and- hers organized closets. 2 generous-sized secondary bedrooms w/ large closets & private balcony. Entertainer's dream over-sized backyard offers the perfect venue for any occasion. Built in BBQ, full bar with stools, pizza oven, and shaded seating area with tranquil waterfall fountain. This premier property is offered in Irvine's idyllic Quail Hill community w/ 5 parks, 3 Olympic-sized pools, Community Summer Swim Team, Upscale Fitness Center. Close to nature trails & beach. Located in award-winning University High School region of the Irvine Unified School District.