I am fortunate to have a decent area for sewing. It isn't huge and I whine about it all the time but I've been so impressed by the sewing space of a blogger I follow. She lives in NYC and space is at a premium. This is her setup.
http://madebychrissied.blogspot.com/...=+sewing+space
And while you are there, you can look at all the impressive quilts she has made in that tiny space.
Good luck!