Positioned in the heart of Brooklyn’s dynamic Sunset Park neighborhood, 5109 5th Avenue presents a rare ±18,000 square foot leasing opportunity across two expansive floors. This versatile property is ideally suited for medical practices, adult daycare centers, educational institutions, or traditional office users seeking a prominent and accessible location. The second floor offers approximately 11,000 square feet of open, adaptable space, while the third floor features ±7,000 square feet complemented by a private outdoor patio, an ideal amenity for wellness-focused or community-oriented tenants. With 12-foot ceiling heights and a dedicated private elevator, the building ensures both functionality and comfort for staff and visitors alike. The property boasts 117 feet of street frontage between 51st and 52nd Streets, enhancing visibility and accessibility. Immediate possession is available, allowing tenants to move quickly and capitalize on the area's strong foot traffic and growing demand for community services. Sunset Park’s vibrant mix of residential, retail, and industrial uses creates a built-in customer base and workforce, while proximity to major transit routes ensures seamless connectivity across Brooklyn and beyond. This is a compelling opportunity to establish a presence in one of Brooklyn’s most active and evolving corridors.