I have to add the update that I am also an idiot. I was looking for #930; I found the area for numbers 915-945, but they all turned out to be odd numbers. Went across the street, saw #204, so I thought I was in the wrong place, oddly enough.

Much later and after a few phone calls to mutual friends (I didn't have the host's number) it turned out I *had* been in the 920-950's... but had seen APARTMENT number 204.

Then the apartment numbers went 301, 201, 101, 305. I was looking for 305, so I turned around when I hit 101, of course. More phone calls. But it was a totally fun evening and the host had a framed diploma from Star Fleet on the wall!