New Atlas – Architecture

Two-Story 3D-Printed House Withstands Earthquakes with Cave-Like Design

Japan unveiled its first two‑story 3D‑printed home, the O House, a 50 sq m residence built with a hybrid of robotic cement extrusion and conventional reinforced‑concrete framing. The structure rises from 0.5 m below ground to 7 m high, featuring arched, cave‑like walls and skylights, and complies with Japan’s stringent seismic standards. A reinforced strip foundation on ground‑improvement piles provides earthquake resilience, while the project demonstrates that 3D‑construction can meet complex geometry and regulatory demands. The team plans to scale the technology for disaster‑relief housing and defense applications.