Coexistence with Wild Birds at Tokyo Square Garden's 'Kyobashi-no-Oka': Installation of Regenerative 'Kyobashi Nest Boxes' Using Recycled Materials, Featuring Live Camera Viewing of the Nests
Tokyo Tatemono and Hakuten have installed 'Kyobashi Nest Boxes' made of recycled materials via 3D printing at Tokyo Square Garden to support wild birds. Visitors can observe nesting activities through a live camera.
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- 📰 Published: April 2, 2026 at 22:00
- 🔍 Collected: April 2, 2026 at 13:35
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Tokyo Tatemono Co., Ltd. and Hakuten Corporation announce that on April 2, 2026, they installed 'Kyobashi Nest Boxes', birdhouses made from recycled materials such as pruned branches, dead leaves, and building scrap wood, at 'Kyobashi-no-Oka', a three-dimensional green space in the complex building 'Tokyo Square Garden' (Chuo-ku, Tokyo) owned and managed by Tokyo Tatemono and others. Through the 'Kyobashi Nest Box' installation project (hereinafter 'this Project'), the companies support the nesting of wild birds and provide an experience of coexistence with nature in the city by featuring a live viewing function to observe the inside of the nest in real-time.
The 'Kyobashi Nest Boxes' are made with an eggshell base, utilizing recycled materials such as branches and leaves generated from planting pruning work at 'Kyobashi-no-Oka', and logs pruned during management work at the 'Otemachi Forest' green space on the premises of 'Otemachi Tower' (Chiyoda-ku, Tokyo). They are woven like a bird's nest using digital manufacturing technology such as 3D printers. It is developed in two designs—an egg-shaped form that harmonizes with the bark, and a shape that naturally rises from a log—pursuing structures where wild birds can nest with peace of mind. Additionally, a 'Nesting Material Stand' is set up to provide scrap materials from events held at Tokyo Square Garden as nesting materials for wild birds. A live camera is built inside the nest box, and from the live view monitor, people can observe which materials the birds choose and how they form their nests. This provides an opportunity for urban dwellers to feel the workings of nature in their daily lives and deepen their understanding of ecosystems and circular resource utilization.
This project breathes new life into scrap materials that have finished their roles, prepares a living environment for wild birds in urban areas, and aims to contribute to regenerative ecosystem circulation by watching over them.
## Background of this Project
Although Tokyo Square Garden is a large-scale complex building boasting excellent access directly connected to Tokyo Metro Ginza Line 'Kyobashi' Station and within walking distance to JR 'Tokyo' Station and the Ginza area, it features a three-dimensional green space 'Kyobashi-no-Oka' stretching from the 1st basement floor to the 5th floor above ground, reaching approximately 31m in height and covering approximately 3,000 m². The space is planted with beautiful seasonal colors, and its environmental conservation efforts considering biodiversity have been highly evaluated, receiving many certifications and awards including the 'Association for Business Innovation in harmony with Nature and Community (ABINC) Certification'.
This project creates new value by recycling waste materials generated at places like 'Kyobashi-no-Oka', where people can feel rich nature even in such an urban area, to produce nest boxes, thereby circulating materials that would originally be discarded. Furthermore, by creating an environment where visitors can observe the selection of nesting materials and the nesting process, it nurtures an awareness of coexistence with nature among people spending time in urban areas, promoting realization and behavioral changes toward a regenerative society.
## Features of 'Kyobashi Nest Boxes'
### 1. Regenerative Nest Box Structure Circulating Natural Materials
The two types of 'Kyobashi Nest Boxes' produced and installed in this project utilize scrap materials such as pruned branches, dead leaves, fabric fragments, and building scraps, and are formed using a 3D printer. By crushing and pelletizing the materials, a natural texture that harmonizes with tree bark is achieved. At the same time, the internal structure prevents rainwater intrusion and ensures ventilation, providing a safe space for wild birds. The diversity of the materials themselves becomes the individuality of each nest box, creating shapes that symbolize intra-city circulation.
The 'Kyobashi Nest Boxes' are made with an eggshell base, utilizing recycled materials such as branches and leaves generated from planting pruning work at 'Kyobashi-no-Oka', and logs pruned during management work at the 'Otemachi Forest' green space on the premises of 'Otemachi Tower' (Chiyoda-ku, Tokyo). They are woven like a bird's nest using digital manufacturing technology such as 3D printers. It is developed in two designs—an egg-shaped form that harmonizes with the bark, and a shape that naturally rises from a log—pursuing structures where wild birds can nest with peace of mind. Additionally, a 'Nesting Material Stand' is set up to provide scrap materials from events held at Tokyo Square Garden as nesting materials for wild birds. A live camera is built inside the nest box, and from the live view monitor, people can observe which materials the birds choose and how they form their nests. This provides an opportunity for urban dwellers to feel the workings of nature in their daily lives and deepen their understanding of ecosystems and circular resource utilization.
This project breathes new life into scrap materials that have finished their roles, prepares a living environment for wild birds in urban areas, and aims to contribute to regenerative ecosystem circulation by watching over them.
## Background of this Project
Although Tokyo Square Garden is a large-scale complex building boasting excellent access directly connected to Tokyo Metro Ginza Line 'Kyobashi' Station and within walking distance to JR 'Tokyo' Station and the Ginza area, it features a three-dimensional green space 'Kyobashi-no-Oka' stretching from the 1st basement floor to the 5th floor above ground, reaching approximately 31m in height and covering approximately 3,000 m². The space is planted with beautiful seasonal colors, and its environmental conservation efforts considering biodiversity have been highly evaluated, receiving many certifications and awards including the 'Association for Business Innovation in harmony with Nature and Community (ABINC) Certification'.
This project creates new value by recycling waste materials generated at places like 'Kyobashi-no-Oka', where people can feel rich nature even in such an urban area, to produce nest boxes, thereby circulating materials that would originally be discarded. Furthermore, by creating an environment where visitors can observe the selection of nesting materials and the nesting process, it nurtures an awareness of coexistence with nature among people spending time in urban areas, promoting realization and behavioral changes toward a regenerative society.
## Features of 'Kyobashi Nest Boxes'
### 1. Regenerative Nest Box Structure Circulating Natural Materials
The two types of 'Kyobashi Nest Boxes' produced and installed in this project utilize scrap materials such as pruned branches, dead leaves, fabric fragments, and building scraps, and are formed using a 3D printer. By crushing and pelletizing the materials, a natural texture that harmonizes with tree bark is achieved. At the same time, the internal structure prevents rainwater intrusion and ensures ventilation, providing a safe space for wild birds. The diversity of the materials themselves becomes the individuality of each nest box, creating shapes that symbolize intra-city circulation.