In the past week, a time-lapse video was released showing an entire Midtown block being demolished to make way for the 1,401-foot supertall One Vanderbilt.

Now with a cleared site—plus $1.5 billion in construction financing secured—SL Green is ready to build anew, and Tuesday morning the developer held an official groundbreaking ceremony to mark the momentous occasion.

Designed by the tall-tower pros at Kohn Pedersen Fox Architects, One Vanderbilt will rise to become the second tallest tower in NYC and the tallest tower in Midtown. However, unlike the city’s other skyscraper additions noted for their slim silhouettes, this tower will be a behemoth occupying a full block between Vanderbilt and Madison avenues and East 42nd and East 43rd streets; the site is also directly adjacent to Grand Central Terminal.

The tower will not only add 1.6 million square feet of modern office space to Midtown East, but additionally host the city’s largest floor-to-ceiling windows and completely column-free floorplates, according to SL Green.

The project is also bringing with it $220 million worth infrastructure improvements, including direct subway access from the building, new transit entrances, retail space and public spaces.

Read more and see new renderings of One Vanderbilt at 6sqft...