12 Major Office Buildings Under Construction

One World Trade Center in New York City/3.03 million sq. ft.

The highest-profile development on the list both by size and by legacy is the 3.03-million-sq.-ft. One World Trade Center tower in New York City. The building, which will replace the iconic Twin Towers destroyed on Sept. 11, is 56 percent pre-leased and will be delivered to the market in the first quarter of 2014. It will be the tallest building in the Western Hemisphere, at 1,776 feet, and like all the other buildings in the WTC complex, will aim for Gold LEED certification.

ExxonMobil Office Complex in Houston/3 million sq. ft.

The 3-million-sq.-ft. ExxonMobil campus in Houston, Texas is 100 percent pre-leased. The building will be delivered sometime in the second quarter of 2014, according to the developer Gilbane Building Co. Energy optimization, smart lighting features and under-floor air flow will likely earn the project LEED Gold certification, according to some reports.

3 World Trade Center in New York City/2.9 million sq. ft.

Another piece of the new WTC complex in Lower Manhattan, 3 World Trade Center will contain more than 2.86 million sq. ft. Scheduled to come to the market in the first quarter of 2017, the building is currently only 13 percent pre-leased. Silverstein Properties is developing the project.

4 World Trade Center in New York City/2.8 million sq. ft.

Nearby, the 4 World Trade Center tower will offer 2.84 million sq. ft. of office space. Silverstein Properties has already pre-leased 64 percent, getting ready for delivery at the end of this year.

3521 N Plano Road in Richardson, Texas/1.5 million sq. ft.

The new State Farm Insurance campus in Richardson, Texas will contain 1.5 million sq. ft., but it is already 100 percent pre-leased. KDC Real Estate Development plans to finish construction in the first quarter of 2015.

Transbay Tower in San Francisco/1.37 million sq. ft.

Hines is developing the 1.37-million-sq.-ft. Transbay Tower in San Francisco. The tower will house the Transbay Transit Center at its base and, at 1,070 feet, will be the tallest building in the city. Hines also aims to get it LEED Gold certified. The building, which is not pre-leased, will hit the market in the first quarter of 2016.

River Point in Chicago/1.06 million sq. ft.

Another Hines project, in a joint venture with Levy, is River Point in Chicago. The 1.067-million-sq.-ft. building is 23 percent leased, with asking rents averaging $48.23 per sq. ft. River Point will offer views of both the Chicago River and Lake Michigan and will likely carry LEED Gold certification. It is scheduled for delivery in the first quarter of 2017.

Prudential Tower in Newark, N.J./750,000 sq. ft.

The 750,000-sq.-ft. Prudential Tower in Newark, N.J. broke ground this year, with completion scheduled for the first quarter of 2015. It is set to be 100 percent occupied at delivery. Prudential Tower will reportedly feature a 500-seat cafeteria and a 500-seat conference center. The developer, SJP Properties, has set a goal of LEED Gold certification.

1K Fulton in Chicago/689,067 sq. ft.

1K Fulton in Chicago is a redevelopment of an existing loft building into a 689,067-sq.-ft. office/retail property. Developed by Sterling Bay Cos., the project will be LEED certified. It will come on-line in the first quarter of 2014.

1812 North Moore St. in Arlington, Va./538,092 sq. ft.

1812 N Moore St. in Arlington, Va. will contain 538,092 sq. ft. of space and will carry LEED Gold certification for Neighborhood Development. Monday Properties is developing this building, which is scheduled for completion in the fourth quarter of this year. It is currently 1 percent pre-leased.

6100 Wabash Avenue in Baltimore, Md./538,000 sq. ft.

The 6100 Wabash Ave. building, in Baltimore, Md. will contain 538,000 sq. ft. and will house the offices of the Social Security Administration. It will carry LEED Silver certification for new construction with features such as two green roofs, reduced water and energy consumption and smart solar orientation. Developer The JBG Cos. plans to complete the project in the fourth quarter of 2014.

Tysons Tower in Northern Virginia/524,979 sq. ft.

Tysons Tower, in Fairfax County, Va., is set to include 524,979 sq. ft. of space. Developed by Hines, the building will likely be LEED Gold certified, with sustainable elements including floor-to-ceiling windows and solar shades. Tysons Tower will come on-line in the second quarter of 2014. It is currently 52 percent pre-leased, with asking rents reportedly averaging $57.50 per sq. ft.