It looks like Washington D.C. is also the nation’s capital when it comes to building green.

In the Washington Business Journal’s ranking of the top U.S. cities in LEED-certified projects, which uses data from the U.S. Green Building Council, D.C. comes out on top with 117 properties with LEED (Leadership in Energy and Environmental Design) certifications in the past year.

D.C.’s LEED certifications include 12 Platinum, 60 Gold and 34 Silver, plus 11 others (The ranking system assigned point values to each tier of certification). The District also ranks third for the amount of space devoted to LEED properties, which is about 20.4 million square feet.

The other cities leading in green building include:

The entire nation is seeing a surge in green building. As of March 14, the number of LEED-designated properties rose to 28,582 with 3,442 of those designations occurring since January 2016.