Called the "Getaway Pad," the 540-square-foot kit home has enough space for a living room, kitchen, one full bathroom, a bedroom, and a rooftop deck accessible by a spiral staircase. The "framing kit" costs $43,832.

The tiny home is a framing kit made by PLUS 1. Home Depot said, "Most finishings you'll need to complete your personal space such as doors, windows, electrical, plumbing, and finishes" are available on its website or at stores. This means the home could cost thousands of dollars more, depending on how one furnishes the inside.

Home Depot's tiny home kit indicates increasing demand for small dwellings. And that's because the National Association of Realtors and Realtor.com recently revealed 75% of homes are too expensive for middle-class buyers.