Five-star living: what a way to enjoy each day. Fifteen Twenty-One Second Avenue offers “resort” perks plus exceptionally appointed homes (5 per floor). This NW corner floorplan (1,824 sq. ft., 2 beds, 2 baths, glass room) makes the most of the view. Custom interiors by designer Susan Marinello. parking spaces. Enviable shared amenities: 24-hour concierge, gracious lobby, gym, yoga studio, boardroom, wine cellar, 2 rooftop decks w/ BBQ, + gardens. Pets welcome.