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After Nakagin: What Metabolism Still Teaches Us

Kisho Kurokawa's capsule tower was demolished in 2022. Its ideas about growth, change and replaceable parts are more relevant than ever.

By the Quiet Harbor Path editors · 15 October 2026 · 7 min read
Futuristic concrete architecture against a blue sky

Futuristic concrete architecture against a blue sky. Photo: Pexels

For half a century, the Nakagin Capsule Tower looked like a stack of washing machines bolted to two concrete cores. Designed by Kisho Kurokawa and completed in 1972, it held 140 prefabricated capsules, each a tiny studio with a round porthole window, built-in furniture and a compact bathroom.

At a glance

Architect
Kisho Kurokawa
Location
Ginza, Tokyo
Completed
1972
Demolished
2022

It was the most famous built expression of Metabolism, a movement launched by a group of young Japanese architects at the 1960 World Design Conference in Tokyo. They argued that cities should behave like living organisms: permanent structures acting as a skeleton, with smaller units that could be added, removed and replaced as needs changed.

The capsules were never replaced

The irony of Nakagin is that the capsules, designed to be swapped out every few decades, never were. Maintenance proved difficult, ownership was fragmented, and the building aged. After years of debate, demolition began in 2022.

A building designed for change could not survive without it.

Yet the story did not end with the wrecking crews. A number of capsules were salvaged, restored and sent to museums and collections, where they now travel as objects of study — fragments of an idea rather than a building.

Why it still matters

Modular construction, adaptive reuse and buildings designed for disassembly are central themes in today's conversations about sustainable architecture. Metabolism asked many of the same questions sixty years ago. Its answers were imperfect, but its ambition — to design for time, not just for the moment of completion — remains a challenge worth taking up.

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