I've seen a lot of people that have done things in big workshops, big tables, drawing tables, even in the bedrooms or kitchens (hey, that's what I've heard!), but how you're gonna work your costuming stuff, specially when dealing with spray paint, RIT dye and removers, Super Glue, and all kinds of volatile materials in a close space? Best way is to be outside the house, apartment or in a workshop.
Well, in my situation, when I dealt with my soft parts, or measuring parts or little stuff, like my chest display casing, I was doing everything inside my computer room (my sacred SW collection and rest place...aka TDH), and one or two times in the main bedroom. But most of my time while I was dealing with the main thing (armor, JP, etc.) was outside the apartment, but because we live in a military installation housing, we don't count with a lot of space available or a few stuff that we need, like a laundry sink.
All my stuff was done thanks for just one thing and one thing only...my trusty old military wood ammunition box. It's 21" tall, 22" long, and 16" wide, which I use as my "working bench",
It's not taller than my knees, but most of the pics I've taken about my armor, gloves, Dickies jumpsuit, GA Fiberglass Jet Pack, the glove Pre-prod patches, etc. were all done in that same box (you could tell by the grey mist on top of the box by accident, while priming my JP), and I'm still working in the same box right on top, covering everything with newspaper and tape.
Now, lets see what you use as your working space, I bet that you can't beat that!