Soeone recently asked me if Fort Worth's two most expensive construction projects were underway simultaneously in Dickies and the AA HQ. They are indeed the two most expensive buildings I can find record of, but I haven't been able to find numbers on a lot of projects. Several of the other downtown skyscrapers (Burnett, Bank of America) probably are into the hundreds of millions.
Dickies Arena - $540 Million
American Airlines Headquarters - $350 Million
Omni Hotel - $230 Million ($266 in 2017)
RadioShack HQ - $172 Million - ($237 in 2017)
Bass Hall - $180 Million (2014)
Frost Tower - $115 Million
Pier 1 building - $90 Million ($119 in 2017)