You can view the site plan with the building elevations showing the heights in this link.
The file you want is the 2nd one: "Commerce 139-151_Riverwalk 106_Construction Documents"
https://sanantonio.legistar.com/Legi...tions=&Search=
Those elevations show it with only 16 floors of residential floors. Level 17 is the mechanical penthouse, which typically isn't counted in floor numbers. I think the 17th floor that they're counting is actually from the riverwalk level since there is one down there where an elevator lobby is. There's also some retail on the riverwalk level, listed as "shell lease space", which is a good thing.
The highest height listed is 209 feet 7 1/2 inches, but you'll notice the roof actually continues upward a bit more above that number. I measured it to 212 feet 4 1/2 inches. The main roof height is 199 feet 7 1/2 inches, and the top residential floor, the 16th floor, is at 186 feet 10 1/2 inches.
Those are the numbers measured from the street level, which you'll notice is listed as +0. The riverwalk level drops down another 13 feet, so measuring from the riverwalk level, the building's overall height is 225 feet 4 1/2 inches.
The site plan also shows a nice overhead view of the shape of the tower.