Ahh, sorry about that. I've only been there once or twice so I couldn't really remember what street it was near or anything. But I Google mapped it. Turns out it's not purple. Thought it was in the dark. I'll edit my post and add a street view screen shot. If you're walking down Cedar street from Highland Ave, it's on your right in between Albion and Alpine. It really does look like an old garage, but the whole thing is broken up into studio space for maybe 6 or 7 artists.
EDIT