House

A house comprising:

• a passage along an exterior wall and a first inner wall;
• a front chamber defined by a first portion of the first inner wall and a second inner wall, the first inner wall having a first doorway immediately connecting the front chamber to the passage;
• a toilet room defined by a first portion of the second inner wall and a third inner wall, the first portion of the second inner wall having a second doorway immediately connecting the toilet room to the front chamber;
• a first habitable room defined by a second portion of the second inner wall and a third inner wall, the second portion of the second inner wall having a first habitable room doorway immediately connecting the first habitable room to the front chamber, the toilet room located on one side of the third inner wall and the first habitable room located at an opposite side of the third inner wall;
• a first door configured to open and close the first habitable room doorway;
• a first ventilation system configured to supply air from an outside of the house to the first habitable room and to exhaust air from the front chamber to the outside of the house;
• a first fan configured to exhaust air from the first habitable room to the outside of the house;
• and
• a second fan configured to exhaust air from the toilet room to the outside of the house;
• and
• wherein the front chamber is defined by a plurality of inner walls including the first portion of the first inner wall and a second inner wall, and in which all doorways in the front chamber consist of the first doorway, the second doorway, and the first habitable room doorway.