There's a basement bedroom in our house which could be turned into a hobby room/train room (the SWIMBO lightly suggested that the layout be in its own separate area).
First off, my bias is for GWR OO gauge but N gauge is not out of the realm of possibility.
It's a square 11' by 11' room. That size of room would make a OO gauge continuous run layout difficult to build (it would be more of a roundy-roundy at that size). So I assume that an end to end layout is most practical considering the space. The problem is that I have quite a few big 4-6-0s that I would like to run for long periods of time rather than from one end of the layout to the other. When I had my temporary layout in my parents basement, I would become accustomed to sitting down and simply watching the trains go round on my admittedly basic 8 by 4ft roundy layout. I'm not sure if I would enjoy operating an end to end layout.
I don't know exactly what I would want on the layout in terms of features, I just want to hear if it's feasible to have a credible OO gauge layout in that size of a room. What sort of layout designs could I do with that size? I would think the classic MPD layout or the standard branchline would probably be the easiest.