Penshirubiru - Collective housing in Japan taken to its limit

Pencil Buildings  are multi-purpose buildings, often dedicated to collective housing, although exceptionally there is also the case of a house-building for a single owner. They have an extremely small footprint, so much so that only the area dedicated to vertical communications can occupy half of the floor. They rise in height above these minimal plots forming slender pieces, like a pencil standing upright, hence their name. When they appear grouped on the same street, it is inevitable to recall the image of a half used pencil box, each worn down to a different length.