Usually, the space below the staircase is left vacant or transformed into a storage area. However, you can modify it into a closet, kitchen pantry, a mini library, a dog house, a mini bar, or an indoor garden. Creating an indoor garden under the stairs will be a unique idea for the ones who like hobby gardening. It will introduce greenery into the room and be a good relaxation spot for your family and friends. Moreover, its maintenance will not interfere with your day-to-day lifestyle.