JPMorgan Chase unveiled the design for its new global headquarters in Manhattan's Midtown East. There are so many firsts with the new building, which will be one of New York City's tallest. The architects, Foster + Partners, blurbed:

Julian Wasser/Pix/Michael Ochs Archives/Getty Images

There are many other firsts that go with this building. It replaces what was the largest building ever designed by a woman: the Union Carbide Building by Natalie de Blois of Skidmore, Owings & Merrill. It was the largest building ever demolished on purpose, taking down 2,400,352 square feet of classic modern architecture.

It was without question the largest LEED Platinum-certified building and likely the first LEED building to be demolished—it was probably gutted down to the basic structure, with everything replaced. Since it was destroyed before it was 10 years old, much of it may not have even been out of warranty. It may also be the building that has been written about on Treehugger more than any other, as our poster child in the ongoing discussion about embodied carbon—those upfront carbon emissions from the new construction that replaced the old.

It also elicited a huge reaction from the architecture and preservation communities. It had me wondering: Was this the start of a new era where people actually care about sustainability, the way New York's 34th-Street Penn Station changed the way people thought about demolition for a previous generation? I wrote: "270 Park Avenue is no Penn Station, but it is an important building that also marks the end of an era where architects can pretend that what they are doing is 'sustainable' and 'green' while vomiting out the carbon of fourteen thousand cars."

We have not seen the design of the new building until now. Architecture critic and activist Theodore Grunewald tweeted back in 2019, citing a "reliable source" that Foster + Partners won't release a rendering until the demolition is complete.

And this proved to be the case. Foster + Partners describes its sustainable, green, and healthy features: "270 Park will be New York City’s largest all-electric skyscraper with net zero operational emissions and will be 100% powered by renewable energy sourced from a New York State hydroelectric plant."

Given that CEO Jamie Dimon is dragging employees back to the office kicking and screaming, they are paying attention to health and air quality, consulting with Dr. Joseph Allen and others:

"Sustainability is at the heart of the project, with workspaces flooded with daylight and fresh air, incorporating biophilic elements and materials to improve wellbeing," said Nigel Dancey of Foster + Partners in a statement.

Others might note that the definition of sustainability is changing in a world where we worry about carbon. As I ask in a previous post: Do we even need new office buildings post-pandemic?

That is why we continue to quote architect Carl Elefante: "The greenest building is the one already standing."

Last tweet to Grunewald, who has put together before and after photos and posted them on Twitter. Guess which ones I prefer?

"Natalie Griffin de Blois." Pioneering Woman of American Architecture.

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