I love this under stair indoor "dog house." Its out of the way and it even has a window. What more could a dog want? I do want this somewhere,so that while we are gone,they can look out of "their window" and watch for our return.
Staircases take up a lot of space, so why not use them for storage as well. Imagine each step is a box with a hidden drawer in it still allowing for additional storage or home office space beneath the staircase.