Welcome to 147 E. La Castellana Drive, an immaculately renovated home ideally positioned on a premier hillside lot within one of Nogales' most desirable and well-established neighborhoods. This thoughtfully improved residence offers a strong blend of comfort, functionality, and long-term value, complemented by beautiful panoramic views of the Santa Cruz County Valley. The home showcases numerous recent upgrades designed to enhance efficiency and everyday livability. Improvements include fresh interior and exterior paint, new double-pane windows that invite in abundant natural light, updated light fixtures, and a fully modernized kitchen featuring new shaker-style cabinetry, laminate countertops, a stainless range hood, and brand-new appliances highlighted by a gas stove. Bathrooms have been tastefully refreshed with new vanities, modern fixtures, and attractive tile finishes including a spacious walk-in tiled shower with built-in niche and window for natural ventilation, creating clean, contemporary spaces throughout. Mechanical and infrastructure updates provide additional peace of mind, including an updated electrical panel, new gas water heater, and new split-system air conditioning with an interior natural-gas furnace. The roof has been refinished and enhanced with new drip-edge fascia. The attached two-bay garage offers significant functionality and versatility, featuring a resurfaced and coated floor for a clean, durable finish, exposed beam construction providing structural character and overhead storage potential, and a dedicated laundry area within the garage that also serves as a practical storage and utility room. Exterior features further elevate the property's appeal, offering a concrete driveway and perimeter security walls with gated access. The expansive hillside lot provides usable yard space with low-maintenance desert landscaping and excellent vantage points to enjoy the surrounding mountain and city views. The combination of recent upgrades, functional layout, elevated lot positioning, and established neighborhood setting makes this property well suited for both comfortable owner-occupancy and long-term investment potential in the Nogales market.