Position and situation of building
1 small of land If the land not big enough, placing house with walls patching at the land boundary, thereby volume for the wall of fence can lessen. Main problem in small land is light and draught, as possible leave over land in back of building, or make void within doors where air can go out to enter
2 wide of land
Owning enough wide of land, it is very profitable, easier to relative determine building position situation than house in limited land. If wishing more efficient in exploiting room, placing house in one of the land boundary side. Through this way, house wall at the same time function as a fence. Besides leaving over land back of building so that draught in more fluent room, and expense of electrics to make cool room even also earn in economizing