On the home's first story, there's a koi pond strategically placed to facilitate micro-cooling of the first-floor rooms. The koi pond's 98-foot length and 612-foot width expose 600 square feet within the house to prevailing breezes for evaporative cooling.
As a gesture to the prominent role that water plays in the residence, an oculus in the pond highlights the main entrance. The circle of sunlight this creates is animated by the constantly changing sinusoidal patterns of refracted rays through the water above.