The narrowest house in the world, only 92 cm wide (6 photos)
The narrowest house in the world is located in Warsaw, it was built by Polish architect Jakub Szczesny. The minimum width of the building is 92 cm, and the maximum is 152 cm. 
The two-story building was named Keret, since its first tenant was the writer Etgar Keret.
One day, returning home, Jakub noticed the free space between the houses.
"It all started with an idea," the architect told Dezeen. "I thought about who would live in this space. Someone who dreams of privacy, of spending time in peace and quiet, doing their own thing. But what exactly?" 
Jakub Szczesny
Of course, living in such a cramped space is not for everyone. As Jakub said during construction in 2012, the tenant needs to have a sense of humour.
I wonder how he managed to fit all the furniture in? It was all custom-made. 
There is more space inside the house than it seems at first glance. One bedroom, a kitchen, a bathroom and a living room are located on two floors, and there is a staircase for moving around. The house has two windows (though they do not open) and several translucent panels that let in sunlight.
There is electricity, water and sewerage, so living is quite comfortable. 
In 2019, Keret was included in the list of the most original houses in the world by Iconic Houses, despite the fact that it is not technically considered a house due to local building codes. It is considered an "art installation". 
In Tokyo, where housing costs are high, such dwellings are quite common. By comparison, the population density is 6,158 people per square kilometer, making it the most densely populated city in Japan. According to Reuters, a 60 m² apartment now costs 15 times the annual salary of a skilled worker.
In this regard, Japanese real estate agency RoomPa recently showed one of the narrowest apartments in Tokyo, which is only 11.5 m². However, it has everything you need: a kitchen with a sink and one stove, a toilet with a shower and a washing machine, two floors of living space and a balcony. 
