A pool in a glass box.

The building is a grid of black steel and glass, and the listing follows the grid. It starts on the roof, where a narrow lap pool is boxed in glass above São Paulo, the towers lined up behind the panes like another wall.

Down a level, a double-height lounge on travertine, black leather sofas, tall plants and a wall of windows. The apartments are smaller and warmer: a sofa with a red patterned rug, cane-legged stools at a counter, a white spiral stair to a sleeping loft.

The bedrooms face the city through the same steel frames. Then a planted balcony, a second pool on the ground floor in deep blue tile, and the last frame looking straight up the facade from the entrance, steel and palms.