Rare 5-acre opportunity in prestigious Hawarden Hills, where finished estates approach $2M (depending on square footage), and at this value it will go fast. A dramatic natural setting of huge boulder outcroppings and a stream winding through a private ravine delivers exceptional seclusion: your future home sits well back from neighbors, with no homes directly across the street and none at eye level on any side. Includes a buildable pad of over an acre and custom design plans already drawn for a 4,500 SF estate, with room for an ADU for income or multigenerational living. Years of due diligence and thousands of dollars in engineering and environmental work are already done, grading plan, hydrology, infiltration, soils, biological/MSHCP, percolation test, septic study and plan, and full survey, saving a buyer a year or more and well into six figures before breaking ground. Zoned RC (Residential Conservation) for low-density estate character, public water service, no HOA, no Mello-Roos, low tax basis. Riverside Unified School District. Minutes to Canyon Crest Golf Club and premier shopping: Riverside Plaza, Trader Joe's, Costco, Target, natural foods markets, movie theaters, and multiple fitness centers. Paved cul-de-sac access with views. A rare, build-ready parcel in one of Riverside's most desirable hillside enclaves, priced to move. Opportunities like this, scarce large acreage with the groundwork already complete and plans in hand, do not last.