Japanese designers Nendo have built an enormous woodland nesting box with 78 entrances for birds on one side and one big door for humans on the other (+ slideshow).
The treehouse was built for observing birds at the Momofuku Ando nature centre in Komoro, in Japan's Nagano Prefecture.
People can reach the Bird-apartment by climbing up a ladder and through a circular hole.
Spy holes across the back wall of the apartment allow a discreet view into the 78 bird boxes on the other side.
Other designs by Nendo we've featured include a tote bag with a pop-out hand puppet and a set of unstable furniture that has to be balanced by books and cups.
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- Eel's Nest by Anonymous Architects
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- Michael Baker Boathouse by Associated Ar…chitects
- Dezeen podcast: David Adjaye at the Desi…gn Museum
- Jan Kaplicky 1937-2009
- Webb Chapel Park Pavilion by Cooper Jose…ph Studio
- Offices and a studio in a renovated mili…tary uniform factory by Sauerbruch Hutton
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