Located in Sapporo, Japan, Boukyo, display an extended distinction between the public and the private was designed by Nakayama Architects. The limits between the private and the public areas that results from this displacement are sufficiently ambiguous so as to generate a continuity in which all the areas of the house contribute to an expanded reading of the interior space. Moreover, all areas are different levels. With this, what Nakayama Architects were really looking for was a way to document how relative and artificial the distinctions of limits within a work of architecture are and were interested in exploring the points of transmission, or friction, between one area and another.
The details and materials were spontaneously undertaken as the work progressed, constituting an essential element that gives this house its particular character. A light roof is supported on a pole made of unpainted steel and covered with lead on the interior and natural steel on the exterior.