5102 5th Avenue is a mid-rise apartment building in Sunset Park, Brooklyn. It was originally built in 1931 and recently renovated in 2025. The building has 14 units. Apartments range from studio to 3 bedrooms. Units feature in-unit washer/dryer, luxury wide plank flooring, video intercom system, individual heating and cooling system, modern kitchens with custom cabinetry, and baths with deep soaking tubs or walk-in showers. The building offers a landscaped roof deck for lounging and entertaining.