(More pictures coming soon) Welcome to 4521 3rd Ave NW - a truly rare 5-acre estate in the highly desirable Collier Woods area, west of 951 (Collier Blvd). Opportunities like this rarely hit the market, especially with this combination of land, income potential, and infrastructure. The main residence offers over 2,700 square feet of living space and has been thoughtfully updated with new tile plank flooring, a new Samsung refrigerator (2024), new Samsung washer (2024), upgraded electrical service with whole-house surge protection, and recent pool repiping in 2025. A wind mitigation report with third-nail reinforcement adds additional peace of mind and potential insurance savings. In addition to the main home, the property features a separate apartment building with two private 1-bedroom units totaling over 1,400 square feet of living space. Beneath the apartments is a 4-car garage, creating exceptional flexibility for rental income, multigenerational living, or guest accommodations. For those needing serious storage, workspace, or commercial-grade capability, the massive 40x60 hurricane-rated metal outbuilding is a standout feature. Complete with a car lift and built for durability, this structure is ideal for collectors, contractors, boat or RV storage, or hobbyists. The building is equipped with 220-volt service throughout, multiple 220V outlets both inside and outside the garages, two dedicated electrical panels, and weather-tight exterior outlets on the balcony posts. A water hydrant sits outside the building, and irrigation and electrical lines run along the driveway and across the front of the property, ending in an additional hydrant at the west property line - providing exceptional utility flexibility rarely found in residential properties. All structures feature metal roofs for long-term strength and storm resistance. Situated west of 951, this location provides the perfect balance of privacy and proximity - inside a rated school district and just minutes to the new Mason Classical Academy being built, medical facilities, shopping, dining, and everything Naples has to offer. Five-acre parcels in Collier Woods are exceptionally rare. Add in over 4,100+ total square feet of living space, income-producing units, extensive garage capacity, high-capacity electrical infrastructure, and premium location - and you have a property that truly stands apart. This is more than a home - it's a compound designed for flexibility, income, and long-term value.