By approaching grangers' requirement of floor area, this research leads to appreghend the development matter of rural house floor area in the future. The researching circumscription includes those villages on slpes of Shin-Lin and Pei-Tou areas in Taipei.The article approaches the switching background factors between past grangers and present ones, such as resident, social, financial condition and decrees. Then, by on-site measurement and portray, the consequence expresses in analyzing the content, quantity, and area of rooms inside practical rural houses.
