I couldn’t find any info on Fred Day, the architect referenced here, except that at one time he may have worked with “Justin and Associates” and favored a local architect for city hall in 1983. It seems you don’t really exist (at least according to the internets) if you worked prior to 2000 or so.
EDIT on 9/9/2010: Thanks to a reader, I have a more info: The architectural firm Fred Day, who is still alive and in Austin, worked with was Jessen Associates. Jessen did a quite a bit of work at UT include the Student Union. The builder for this home was Jack Rather.
EDIT on 1/26/2011: Updated listing with more pictures. I still quite like this home so it gets a bump back up here to the front page (something I don’t usually do).