This paper analyzes the hidden structure of residents' segmentation and evaluation structure on residential satisfaction using the dataset obtained from the recent UDC (Urban Development Corporation) survey. Clustering of residents, evaluation criteria, and structural relationship of satisfaction factors based on the evaluation of residential satisfaction are identified and clarified from the viewpoint of housing supply and housing policy planning. The result shows that there are four clusters of customers in the evaluation of residential satisfaction primarily determined by the two factors; housing and residential environment. Also the concept of residential satisfaction which is predominantly divided by these two major satisfaction components is further classified into seven other satisfaction factors and their relationship is discussed. The result clearly demonstrates that satisfaction from indoor housing is more influential in determining overall residential satisfaction than that of outdoor environment.

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This paper aims to clarify problems about the property registration of skeleton-infill housing (SI h ousing) in base-building condition and to propose solutions of them. One of the barriers of SI housing is that base buildings cannot be registered and be mortgaged for housing loan in present Japanese property regulations. To solve this problem, we studied the following three methods of the property registration.
1) The way in which units are registered one by one after their infill are finished.
2) The way in which all units including base units (units without infill) are registered at once as “house”.
3) The way in which base units are registered by new name “house without infill” which means units in base-building condition.
The result of studies is that the third method is suitable for the property registration of SI housing. And by this method, order-maid system of infill is supposed to be realized more easily in “Two-Step Construction”.

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The present paper examines the status quo of housing information in Japan by comparing it to the reliability of information on used housing made available to residents of the U. S.
The results are as follows:
Americans take for granted the idea of reselling a house, and as a consequence show strong interest in the commercial value of housing. From the time a person purchases a house he/she is already taking into account the future scenario of reselling it, which makes advance inspection of the item to be purchased a very common practice. In contrast, The Japanese are concerned about the safety and functionality and do not fully trust the assessment of a realtor in Japan, the more a person is prone to changing residences the less the interest he/she shows in making an advance inspection. There is a strong correlation between the care and maintenance put on one's present home and the asset value the dwellers think it is worth. In Japan, the longer the length of residence in a house the stronger the awareness of its value as an asset, and thus the higher the care given to its maintenance.

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This paper proposes a method for identifying households who need housing assistance using a concept of the term ‘affordability’ by Hancock (1993). We verify the existence of a household who could maintain an adequate housing in the rental housing market without requiring a significant sacrifice of other necessities, and keeps residence in public rental housing supplied by the local government. The indicator of affordability is represented by the multiple of the cost of the adequate housing, and then we present the definition of the rent-to-income ratio. Moreover, we derive the indicator for a given household type by hedonic approach. It is shown that at least 17 per cent of households in public housing are capable of securing affordable housing in the rental housing market with the present income.

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