In 2013, Japan carried out the quiet demolition of the 140-meter Grand Prince Hotel Akasaka in Tokyo, introducing a revolutionary method known as the TECOREP System—a technique likened to “reversing time.”
How the Method Works
- A giant jack lifts the roof, converting it into a sealed enclosure.
- Soundproof panels are installed around the top floor to match window positions.
- The building is demolished two floors at a time, taking about 10 days per cycle.
- The enclosure is then lowered gradually, repeating the process until the structure is gone.
Innovative Features
- Virtually silent and dust-free, with minimal disturbance to surrounding buildings.
- Uses an internal crane elevator that harnesses gravity to generate electricity for the site.
Philosophy Behind the Method
Japan approaches demolition not as destruction, but as a graceful farewell—a respectful closure to buildings that once shaped the cityscape, while minimizing environmental impact and honoring collective memory.
This forward-thinking approach sets a new global benchmark for urban redevelopment in dense and environmentally sensitive areas.
Source: Nikkei
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