Perched high above Brickell Waterfront, The Upper Penthouse at Una Residences is a masterwork of coastal luxury. Crafted by Adrian Smith + Gordon Gill Architecture, this 9,955-square-foot triplex pairs 7,084 square feet of bespoke interiors with 2,871 square feet of private terraces. Teak, walnut, and natural stone complement floor-to-ceiling glass framing panoramic views, all linked by a private internal lift.A private elevator foyer opens to a double-height Great Room with curved glass flowing onto a massive bayfront terrace. Nearby, the chef’s kitchen features Gaggenau appliances, supported by a guest powder room and discrete service quarters.Level 44 offers six en-suite bedrooms, featured by two primary suites—one capturing western sunset vistas over the skyline, the other a waterfront sanctuary with a spa bath and terrace. A media room, formal study, housekeeping suite, and full laundry room complete this level.The rooftop sanctuary boasts an open-air deck with a private pool, summer kitchen beneath a trellis, sauna, and steam shower. Residents also gain full access to UNA’s white-glove amenities: an Aman-inspired spa, fitness center, cinema, three bayfront pools set in Enea gardens, and exclusive membership to Key Biscayne’s Grand Bay Club.