According to Cidex this one is actually 24 floors:
Quote:
Make downtown your own.
Towering 24 stories above the big-city lights at the corner of Twelfth Avenue and Ninth Street Southwest, Aura is just a few blocks' walk from work, play, shopping, nightlife... everything you need for an urban lifestyle that's as vibrant and stylish as it is convenient.
Yes you are correct "Spring2008". Good catch! The website says 24 floors plus I counted the floors on the rendering and it shows 24 as well, so it must have always been 24 floors.