secret door to an underground storm shelter/panic room/hid out in the kitchen island! Best secret passage ever! Definitely a dream home feature! (would also be good if someone broke into your house and you had to hide somewhere) Zombie apocalypse.
Levitate Architects used a staircase to a loft-like bedroom to create an enormous amount of book storage space. Even though the staircase isn’t very compact but could accomodate so many books that it would save some space anyway.
Storage, Astonishing Custom Wooden Bookshelves Inside Stairs In Mahogany Design Ideas Custom Bookcase Stairs Design Wooden Stairs Without Handle In Modern Living Room Interior ~ Compact Under Stair Storage Ikea to Utilize Under Stair Space