In Japanese tradition, Uchigumori is not just a sharpening stone—it is the final, most valuable tool that polishes the katana’s blade, revealing the soul of the steel and defining its lethal edge.
From that philosophy emerges Casa Uchigumori, an experimental prototype developed by our studio.
Project by Antonio Escalona.
A home where architecture reenacts this ancestral ritual:
The Stone (The House)
Exposed concrete volumes act as the sharpening stone—massive, raw, and uncompromising. Powered by Xpanel technology, this “stone” becomes technically perfect: sandwich walls with 13 cm insulation and thermal bridge break, achieving up to a 60% reduction in carbon footprint. Material solidity transformed into efficiency.
The Blade (The Water)
The longitudinal water sheet is not merely a pool—it is the freshly polished katana blade. As wind brushes the surface, ripples appear like the Hamon (the steel’s tempering line), creating a living mirror where the “samurai” reflects on both the environment and the self.
This project continues our conceptual series inspired by martial arts (Casa Irimi, Casa Aikido, Casa Kokiu Nage). Designed without a client, it is an exercise in absolute freedom—pushing the boundaries of The Art of Living.
A dialogue between the static (concrete) and the fluid (water).
Between construction technique and martial poetry.
Is architecture a shelter—or a weapon to face life?