The result was keep. kur ykh 07:26, 30 January 2010 (UTC) reply
I've agonized over nominating this one for most of the evening, but I'm going to go forward with a nomination. The buildings described seem to be of limited notability; there are no clear guidelines on what is/isn't a notable office building (obviously a hundred-story skyscraper is probably notable; a ten-story one, probably not).
Pollux might be notable based on its height (it shows up as the 15th tallest building in Frankfurt), but Castor (at only 22 floors tall) probably isn't on its own. Neither seems to get much coverage of any kind (notably, GNews yields zero hits relating to them either in German (Kastor und Pollux) or English (Castor and Pollux) attached to the term "Frankfurt", used to sift out references to the mythological creatures). Google hits seem to be limited to a few stray (highly detailed) lists of buildings in Frankfurt and to personal pictures which happen to include the buildings. Thus, I feel that notability is not achieved, primarily due to the sheer lack of press coverage and limited other coverage. Tyrenon ( talk) 10:59, 22 January 2010 (UTC) reply