Perched high above the Flatiron District, with 10-foot ceilings and floor-to-ceiling windows, boasting southern, western, and northern exposures, Residence 31A commands dramatic architectural and river views, is awash in natural light throughout the day and basked in golden sunsets.

The windowed kitchen boasts Nanz hardware, Sub-Zero and Miele appliances, custom cabinetry by Molteni,...