If you've been around Grand Central recently, there is no way you've missed the hordes of construction workers at the site of One Vanderbilt, which is gonna be New York City's newest skyscraper. 

Or maybe, you've been too busy running to catch the F train in the morning to figure out what was going on (note: me). Aaanyway, oh, so that's why it was an absolute mess to navigate the area on Tuesday.

The official groundbreaking ceremony for One Vanderbilt was yesterday, on October 18th (yep, Tuesday).

They revealed interior renderings that illustrated the 1.7 million square feet of Class A office, which will sit on 58 floors. As reported by Curbed NY, there are such few floors because the ceilings will range from 14.6 to 20 feet.

The building's tenants will also have access to a 30,000 square foot amenity floor that's apparently gonna come with a baller cafeteria. TD Bank has already signed on as the anchor tenant, and they'll be leasing 200,000 square feet of the building, including a new flagship store.

So far, it's been a 15-year process for developer SL Green– envisioning the project, getting city approvals and zoning changes, and clearing the site itself. Mayor Bill de Blasio's administration finally approved the building just last summer.

The developers' agreement with the city was that they were required to complete the transit improvements before they rent out the coveted upper floors of the tower. 

Specifically, the mezzanine level at Grand Central will be refurbished by SL Green, who will also be providing link between that level and the street. There will also be improvements on the green line, including new exits on both platform ends.

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Just like the MetLife building, there will be an entrance to the subway, Metro North, and the LIRR (if that like ever actually happens) from One Vanderbilt itself. 

Speaking of the impending LIRR connection, as commuters, we're not exactly hype about the congestion that, along with the new super tall, will bring. Grand Central's area isn't exactly a quiet street as is. 

However, Vanderbilt Avenue (between 42nd and 43rd Street) is gonna be converted into a pedestrian only plaza– if you know the area, you might remember that there's a citibike already station there, so if citibikers can control themselves, the 14,000-square-foot space should really help.

Well, it should, but we have a feeling it might just provide tourists a new space to stand still looking at their maps. Sigh.

The entire project, including the transit upgrades, is scheduled to be finished by 2020– but we'll see about that. Check out a selection of the renderings of One Vanderbilt below:

[via Curbed NY] [Feature Image Courtesy Curbed NY]