Hudson Yards is the biggest New York development since Rockefeller Center. Here are all the major buildings in the $25 billion neighborhood.

• The $25 billion Hudson Yards megadevelopment had its grand opening on March 15.
• The entire 28-acre project is set to be completed in 2024.
• Business Insider got the rundown of how each building has progressed. 

Hudson Yards is a mammoth development in New York City, the likes of which hasn't been seen since the unveiling of Rockefeller Center in the 1930s. 

The $25 billion complex covers an entire avenue and stretches four city blocks. At the far edge lie the Eastern and Western Railyards, whose train tracks run below a raised platform that supports the new luxury office and residential towers. Each of the buildings revolves around an expansive public square with a lush landscape of trees and woodland plants. 

Read more:Here's what it's like inside the $25 billion Hudson Yards megadevelopment

Phase one of the project — 11.9 million square feet along the Eastern Yard — was unveiled to the public at a grand opening on March 15. From there, developers will move on to the second and final phase — 6.2 million square feet along the Western Yard — which is set to be finished by 2024. This second phase of development includes the construction of a public school, along with additional office, residential, and retail space.

The site has come a long way since Busines Insider toured the complex back in September. Here's the rundown of how each building has progressed.

SEE ALSO: Firefighters are warning that lives could be at risk in New York's $25 billion megadevelopment

The Shed

The Shed is the only structure in Hudson Yards built by New York City itself. As part of its negotiations with the complex's two developers, Related and Oxford Properties, the city mandated the construction of a nonprofit cultural center.

The Shed was born from this vision, and will serve as a forum for art installations, concerts, conventions, and other cultural events. There's even talk of having it replace Bryant Park as the site of New York Fashion Week.

The structure, which borders the High Line along the Eastern Yard, features a retractable outer shell that can be rolled back for outdoor events. The shell is held up by six track-bound wheels and controlled by a wireless remote. 

The Shed's doors will open in April. 

15 Hudson Yards

To the right of The Shed, at the corner of 30th Street and 11th Avenue, is 15 Hudson Yards, a 900-foot-tall tower with views overlooking the Hudson River. The building spans 960,000 square feet and features nearly 300 residences, including around 100 affordable units. At least 60% of the units have already been sold, with a standard unit starting at around $3.9 million.

The design is the result of a collaboration between Rockwell Group and Diller Scofidio + Renfro, which contributed to the High Line. Inside, there is a 75-foot swimming pool, screening room, rooftop lounge, and a private coworking space.

The tower opened its affordable housing lottery in October 2018 and will soon begin accepting residents.

35 Hudson Yards

Across the plaza sits 35 Hudson Yards, a 1.1 million-square-foot tower designed by David Childs, the architect behind the Freedom Tower. Though it was intended to be a cylinder, its shape now resembles a rectangular prism.

At 1,000 feet tall, the building is the site's tallest residential structure. In addition to its 143 condos, the tower will feature the first-ever Equinox hotel with more than 200 rooms. Guests and residents can also enjoy access to a 60,000-square-foot Equinox fitness club and spa. 

The tower will begin welcoming residents this year, and the Equinox hotel will open in June.