I guess this is the most appropriate place for this, I came across a never-built condo tower. I think it was a proposal of some sort that dates back to 2007, because the same pdf file where I found this also has old models of developments for Houston that were announced during that time. I may be off, but I counted 26-floors. Gensler was the architect.
Seen here on page 28:
http://www.modelworksinc.com/prj/mw-bro.pdf