A 140-Meter Tower, Dismantled Silently — Japan Reinvents Demolition with Grace and Sustainability

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