In the Meiji period,the visitor's reception room,which also served as the master's day room,remained the main feature of a residence just as it had been throughout the long feudal period.However,during the Taisho period,attention gradually focused more on the family and less on guests,and this trend began to influence residential architecture.

Then according to divide the room own privacy got to be protected. But the houses have changed into unconfortable place as long as you take care of ventilation.

To "Mass-Produced Houses"