Natalie de Blois

Architect, Union Carbide Building (1960)

Appears in 1 story

Born: April 2, 1921, Paterson

Died: July 22, 2013

Education: Columbia University, Columbia Graduate School of Architecture, Planning and Preservation

Last updated Nov 2, 2026

Stories

JPMorgan Chase opens world's largest all-electric skyscraper

Built World

As of May 2026: Deceased (1921-2013)

For 60 years, the Union Carbide Building stood at 270 Park Avenue—a 52-story modernist landmark designed by pioneering woman architect Natalie de Blois. JPMorgan Chase demolished it and built something nearly twice as tall: a 1,388-foot supertall skyscraper that runs entirely on hydroelectric power and houses 14,000 employees.

Updated May 27