This reminded me of The Condo from Mary's Dollhouse nook. If you want to save a lot of money on a house, these simple boxes do the trick.
This was made be a group of design students at Göteborg Universitet in Sweden.
"This is a comment to the childrens doll houses and dolls of today. More and more people live in apartments. Nuclear families isn’t the norm anymore. This has led to new family constellations. These doll apartment houses are made for a modern age. Gothenburg city museum, exhibition 2008 Group work: Annie Jönsson, Maria De Frumerie, Henrik Franklin, Rasmus Lindell, Danielah Bright"
(image from www.hdk.gu.se/sv/student/danielah-bright)