In line with the worldwide trend toward the protection of natural environment and economic concerns, the steel framed house is suggested for the next industrialized generatiov. In Korea, untrustworthiness of concrete structured apartment has led to the development of alternative building material and technology. POSCO has constructed the model steel house to assess the marketability of steel framed house in Korea. To collect basic data required to design the steel framed house suitable to Korean life pattern and housing needs, professional evaluation of model steel house was conducted. The goal of this study is to propose alternative plan and ideas on the interior space planning based upon the evaluation from women housing professionals. Our analysis reveals that the habitability of steel house is equal or superior to that of traditional houses. But in the interiior sapce planning, the certain aspects of steel houses is not suitable to Korean likfe style: the lack of storage space and utility space, inflexibility of plav. We conclude that given its cost efficiency and environmental concern, steel house has potential to take an important part in future Korean housing.