This is a perfect combo of my two favorite ideas for that space under the stairs leading to the basement. A reading nook AND book storage and shelves . assuming that there is enough space for this there.
Idea for tiny house if you have stairs to loft. The depth of space under a staircase can be sufficient for a built-in entertainment center that houses a flat-screen TV and a bookcase to boot, along with drawers for remotes, movies, and game accessories.
Would be fun kid hideout space! Awesome dog kennel under the stairs design idea. If you want an indoor dog house, utilizing the space under the stairs for a cozy, attractive and practical space for dogs is a good idea! I love this design.