^^^^
But yes, in terms of height, your right (500+ ft). I should of revised that to mention general construction activity; not height. Globally, 2000-2016 has seen a massive rise in super tall.
This has also been true for the U.S., with 2014 upwards seeing a big increase.
Places like SF for example have changed a lot in the last 10 years. Even Chicago. 2005 vs now.
Credit:
6sqft