RECENT PRICE IMPROVEMENT! Welcome to 3147 E Yellowstone Dr - a beautifully maintained two-story home in the desirable Grand Park Community of Ontario Ranch. This 4-bedroom, 3-bathroom home offers 2,496 sq ft, PLUS a separate office/den (not counted as a bedroom) - perfect for work-from-home, a playroom, or extra flex space. Main floor: a guest bedroom and full bath, a private office with glass-door entry, and an open kitchen, dining, and family room built around a long island. Motorized shades in the living room add effortless light and temperature control. Upstairs: a bonus desk nook, a primary suite with pool and park views, dual vanities, and a large walk-in closet, plus 3 more bedrooms, a full bath, and a laundry room with ample storage. Outside: a covered awning and low-maintenance turf, with no rear neighbors for added privacy. A true pride-of-ownership home - well cared for and move-in ready. Enjoy community pool, spa, clubhouse, and playground access, plus easy reach to the 60, 15, 91, and 71 Freeways, Costco, and 99 Ranch Market. 4 bedrooms. 3 bathrooms. Bonus office. Nearly 2,500 sq ft. One of Ontario Ranch's most sought-after communities.