Rare opportunity to own a fully renovated home with detached ADU in South Austin, offering rental income potential, multigenerational living, or a private home office setup. Located at 5601 Oak Blvd, this move-in ready property combines modern upgrades, flexible living, and a spacious lot in a highly convenient location near South Austin dining, shopping, parks, and major commuter routes. The 3-bedroom, 2-bath main home features a bright open-concept floor plan filled with natural light—ideal for both everyday living and entertaining. The updated kitchen includes modern cabinetry, sleek countertops, and quality appliances, including a brand-new refrigerator, all seamlessly flowing into the living and dining areas. Recent renovations include updated flooring, refreshed bathrooms, and contemporary finishes throughout, delivering the clean, turnkey feel today’s buyers are searching for. The detached 1-bedroom ADU adds exceptional versatility—perfect for short-term or long-term rental income, guest accommodations, or a dedicated work-from-home space. A truly standout feature is the verified natural limestone cave on the property, confirmed by a City of Austin geologist. The cave descends approximately 12 feet to a main chamber, with additional passages extending 30–40 feet, and maintains a consistent ~68° temperature year-round. The presence of abundant calcite pocket crystals adds rare geological character, making this a one-of-a-kind property in the Austin market. If you’re searching for a renovated home with income potential in South Austin, this property offers location, flexibility, and unique features rarely found together.