While looking for more mon I came across this gem. Anna Nakamura and Taiyo Jinno's Eastern Design Office is a Kyoto architecture firm with a string of unique house designs on their amazing portfolio page, one of which is the MON Factory/House. As the name implies, the structure houses a workshop for a mon craftsman, a guy who makes a living emblazoning Japanese family crests onto clothing for local merchants. In reference to the line of work carried on within, the house itself expresses precise geometric patterns, repeating the circular outline of mon in an arrangement relating to the rectilinear shape of the structure.
The translation of the design philosophy behind the house leaves a little something to be desired, but you'll get the idea:
This architecture is "House with Crest". A light that penetrates into the architecture always moves and never stays. It is a symbolical spectacle. A light that goes through the hole is projected in a circle shape, moves unlimitedly, and never stays. Occasionally, it disappears, and it appears....
...The street front space is the workshop for the crest making. The middle space is the living room. And the backspace is the bedroom. The gaps between those three spaces are designed as "void."
People circulate around those two voids. Many circular holes are made for the place where people wander. The light passes through 26 holes which are lined up on a cross shape. We can see various scenes of light and its sequence. People move beautifully with the movement of dramatic light.