A tower that moves against the Brickell skyline.

1428 Brickell does not stand straight. Where its neighbors on the avenue rise in flat, confident lines, this tower curves — a tapering, faintly restless profile that Antonio Citterio and Patricia Viel, the Milan architects behind the Bulgari hotels, drew to look grown rather than built. The local firm Arquitectonica set it into the ground. From the water at dusk, it reads like a building that hasn’t quite decided to hold still.

Inside, the volume drops. Citterio and Viel kept the palette narrow and let the materials do the talking: travertine underfoot and across the walls, marble and limestone in the kitchens, which come from the Italian houses Arclinea and Vaselli and slide shut behind glass when you’d rather not look at the cooking. Even the basin fixtures are Citterio’s own. Nothing here advertises its price — you read the quality in the hand, not the label.

What every residence is built around is the bay. The homes face the water, the glass runs floor to ceiling, and Biscayne Bay is in the frame from the moment you wake. Ceilings start tall and climb toward thirty feet in the upper homes. Terraces carry their own summer kitchens, so the line between indoors and out mostly disappears — which, in this city, is the whole idea.

The rest of the building is generous without making noise about it: a tropical garden that buffers the lobby from the street, a resort pool deck, an entire floor of spa and fitness, a two-story owners’ club and a rooftop observatory near the top. The western face is wrapped in photovoltaic glass that feeds power back into the tower — one of the first residential facades of its kind anywhere.