While still living in our house, we finished 3/4 of the basement, making an office, a play room and a sewing room for me. Since the house was a split entry ranch, I had 4 windows, with lots of light. Then we moved my sewing room to my daughter's old bedroom so that we didn't have to heat 1/4 of the basement, and I did have a decent amount of light, plus I could leave my projects, shut the door and nobody had to see my cluttered sewing room. Now I have a portion of my bedroom for sewing, however, my sewing table faces a large window so there is plenty of light; just not a lot of space.