I iron in the bedroom, but only every couple of weeks or so, and it's usually mainly DBH's shirts. I really hate ironing.
Anything that will need ironing is placed on a hanger, then hung from doorhooks until I am ready for it. DBH has a lot of shirts, I would rather spend one rainy afternoon getting it all over and done with than have to keep warming up the iron every day to get rid of ironing as it occurs. The stuff that sits on the stairs is things that won't crease. I keep a big stash of hangers downstairs to hang things on when wet, so that they don't crease, then bring down hangers from clothes and ironing that are no longer needed up there.
Whatever works for you, I suppose. I have a small room with my wardrobes in it, and a sewing desk and a big chest of drawers that contains fabrics and things. Sometimes there are so many piles of clothes in there, (especially when the family are staying) waiting to be hung up, that I can't get to the wardrobes!