RESORT-STYLE LIVING WITH BREATHTAKING 180° MOUNTAIN VIEWS! Imagine ending the day with mountain views, the sound of cascading water, and your own backyard oasis just beyond the doors. Set on a generous 9,148-square-foot lot in Sierra Del Oro, this beautifully maintained 4-bedroom, 3-bath home offers a distinctive blend of comfort, thoughtful upgrades, and resort-inspired outdoor living. The backyard takes center stage, featuring a sparkling pool, custom rock slide and waterfall, relaxing spa, gazebo, and built-in BBQ kitchen. With scenic, unobstructed mountain views and no home directly behind the property, the setting offers a welcome sense of openness and privacy. A grand double-door entry opens to light-filled living spaces with soaring vaulted ceilings and new oak-inspired waterproof flooring throughout. Upgraded Anlin windows brighten the living room, while a statement chandelier accents the formal dining room. The kitchen features stainless steel appliances, white cabinetry, granite countertops, a walk-in pantry, and a four-seat island. Just beyond, a spacious informal dining area accommodates a full-size dining table and opens to the family room. Sliding glass doors provide direct access to the backyard, making it easy to move between indoor comfort and the poolside setting. A brick-surround fireplace anchors the family room, adding warmth and character to the space. The versatile floor plan includes a main-level bedroom and bath, ideal for guests, multigenerational living, or a home office. Upstairs, the primary suite features vaulted ceilings, a sitting area with scenic views, a walk-in closet, and a five-piece ensuite with dual vanities, separate shower, and soaking tub. Additional bedrooms offer ceiling fans and ample closet space. Notable features include recessed lighting, Tesla solar panels, a water purifier, fresh interior paint, new flooring, vinyl fencing, and an attached climate-controlled three-car garage with epoxy flooring, and two EV charging stations. Conveniently located near schools, shopping, dining, and entertainment, with easy access to the 91 Freeway, 71 Expressway, and 241 Toll Road for routes toward Yorba Linda and Orange County. With its distinctive backyard, expansive mountain backdrop, and thoughtfully designed interior, this is a home where the setting makes an impression long after the first visit.