This paper aims to make a research on the evaluation of dwelling housing units by applying simulationmethod, and make a suggestion for designing units.
The method and process of simulation are as follows.
1) To estimate the utilizaion on dwelling units, set up models which are quoted from past researches.
2) Choose a plan according to the aim what the component of plan should be evaluated.
3) And apply the models to some plan to make an evaluation of it.
4) And then, suggest a design of dwelling unit by using results of the above simulation.
We selected a number of room in Open zone as a target of evaluation, and choose plans based on a target. And put the simulation into practice on the above process. As a result of the simulation, we suggest a dwelling units not only consisted by two zone (Open and Closed), but includes a room which has dual spatial characteristics (Open and Closed). Such a dwelling units can be effective to cope with variable spatial requirement of residents and family.

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One of the many forms that housing market discrimination can take is the practice of steering whereby old persons are recommended housing units but are steered away from predominantly young neighborhoods toward neighborhoods that are already integrated or are predominantly old. This paper finds that there is age steering in the Japanese rental housing market but that there is no rent differential between housing units that are recommended to old persons in old neighborhoods and those that are recommended to them in young neighborhoods. These features of the rental housing market explain age segregation in big Japanese cities.

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This study aims to clarify seasonal difference of outdoor behavior at row house district in Osaka city. The present condition of outdoor behaviors investigated in the autumn of 2001, were compared with the 2000 summer's data collected in the previous study in terms of times, ages, distribution. Spatial conditions such as street patterns, physical characteristics of house and reconstruction (or reform), were also surveyed in order to analyze relationships between physical construction and activities. While Nigiwaimachi area has more outdoor behaviors in summer than that in autumn, more behaviors were observed in autumn in Ohji-Hannan area. Conversations and house-keepings tend to be more in autumn in both areas.Outdoor behaviors are generally influenced from reconstruction and reform ratio, entrance distribution ratio, and street pattern.

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The Study is carried out with aiming at clarifying issues to introduce HOA (Homeowner Association) for living management at the detached housing area. The study clarified roles of the Radburn association that is original HOA in USA, analyzing case study Y Housing Area at Yokohama City, and then investigating issues of introducing HOA at the detached housing area in Japan. As the results, it is found that plan and design of the detached housing area, tax system, local self-government system, development permission system, real estate appraisal system, neighborhood association (Jichikai) system, partnership with developer and local government, and role and member of the association should be paid more attention for introducing HOA in Japan.

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This research aims to clarify a process of spatial transition and the system that maintains and constructs dwelling environment in apartment district of Senri Newtown.
The process of spatial transition was investigated through surveying changes of houses and open spaces from 1971 to 2001. Maintaining system was analyzed from the viewpoint of relationships between social structure and ways of reforming physical environment.
Each apartment/condominium has its own maintaining, which reflects a process of spatial transition.
Though citizen activities seem to be on the decline by aging and children's decreasing, essential activities to maintain housing circumstances at the district are keeping on.

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In 1960s, many developments had been carried out to supply houses for citizens; however, several problems have been arisen such as decline of city centers, the growth of aging population and collapse of local communities. To deal with such problems and make the world sustainable, establishment of management system in the developed area is now essential. The purpose of this study is to consider “Area Management” in a suburban city by examining two types of partnership as its agents in order to clarify the issues or potential of the attempt in Japan. The study first reviews the analysis of the contents of Area Management and the role of each sector, followed by the developing processes of local organizations and the transition of the designated sites of Area Management.

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Many of the condominium apartments near to rebuilding stage can be rebuilt only under the existed floor area, because they were built exceeding current FAR regulation. They are called “existing non-conformed condominiums.” In the case of Great Hanshin-Awaji Earthquake Disaster, “Reconstruction from Earthquake Disaster-type” of “Design with Comprehensive Consideration System” was temporarily and exceptionally introduced, to encourage their reconstruction.
This study aims to evaluate this system, by analysis of conditions, and actual rebuiliding and open space situations of the applied condominiums. The results were the followings. 1) Most of the condominiums were rebuilt near to the previous floor area. 2) The significance of the large coefficient of extra FAR is in relieving the difficulties to create Open Space for Public, within the comparatively small and complicated building sites, to secure extra floor area. 3) The forms of the buildings have change to tall and slender ones.

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The aim of this research is to make clear the acceptance condition and evaluation of housing developers for Housing Performance Indication System (Apartment houses) in Housing Quality Assurance Act. The research was made for 21 major developers in Japan, and it was found that many developers positively have started to use the system and more will use it in the near future. But their main intention is to not kindly give information to the users, but to get users' reliance on the company itself now.

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The public rental housing complex constructed by Housing Development Corporation in the 1960's have been dilapidated. It is an urgent subject to improve many elements of houses. Rebuilding these complex is difficult practical. Inhabitants will be demanded additional rent for improvements, however their Willingness To Pay is expected to be low. There is difference between moving desire inhabitants' WTP and permanent desire inhabitants' one. In this study, we construct a model to estimate the Willingness To Pay for additional rent and examine which element ofhouse should be improved for better living from points of view that moving and permanent. The results of analysis based on questionnaire surveys show the priority of house improvements.

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The condominium which has durability over a long period of time, it is necessary to be able to build the infill according to the needs for every resident. Therefore, the housing performance is divided into skeleton and infill and housing performance evaluation system is studied. About the housing performance divided into Skeleton and Infill, it was able to arrange to three classifications of “S initiative type”, “I initiative type”, or “SI integration type.” In order to satisfy demand performance over a long period of time, the following points are effective,(1) The skeleton performance is shown and make infill design rule into requirements in the new-building phase.(2) Specify reformation rule in management agreement in the existing phase.

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After the Great Hanshin Awaji Earthquake, many local governments have started the housing subsidy policy for promoting the seismic diagnosis. The purpose of this paper is to examine the actual situations and problems of the housing subsidy policy for promoting the seismic diagnosis in Kyoto, Osaka and Hyogo. By the interview survey on Kyoto Municipal Government, Osaka Prefectural Government, Osaka Municipal Government and Hyogo Prefectual Government, I found many problems of the housing subsidy policy for promoting the seismic diagnosis by the local government, although about 80%-90% of wooden houses and about 70%-80% of non-wooden houses tend to be diagnosed as unsafe.

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We studied how local residents can take part in the renewal of Newtown from the actual result observed in “Higashimachi-machikado-hiroba.”(Higashimachi neighborhood center).
It is significantly pointed out that Machikado-hiroba is always open for residents to easily step into the local activity despite the variety of their lifestyle. Daily and routinely exchange among residents there could give birth to the network of the community, mobilizing and vitalizing the region. The practice here in Higashimachi-machikado-hiroba will be expected as a model for the participation of local residents in the Newtown-renewal.

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Widening the narrow street is one of the important subjects for improvement in the densely built-up area. However, the infrastructure provision is not making progress on the whole. So, the purpose of this study is to tidy up the policy of the infrastructure provision for densely built-up area improvement in the future, based on the case study of Shinagawa Ward, Nakano Ward, Shinzyuku Ward and Toshima Ward.

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The Problem of densely built-up areas has been commonly recognised and many proposals have been written and implemented in Japan. However, when we deliberately observe the area, we can find the fact that densely built-up areas are re-generated through sub-division of the sites. In this paper, the mechanisms of re-generating the area are discussed from various point of view (recognition of the period and reality/state and market/demand and supply) and general principles for the solution are proposed.

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Site scale expansion of small-scale housing site is an important problem towards an improvement of habitation environment and formation of good housing property. The purpose of this study is to examine an effective technique to site scale expansion of small-scale housing site. One method is adding land to holdings by the lending facility. And the land readjustment project is effective as a method for collecting the land which bought and increased. Edogawa ward is promoting site scale expansion using these two methods. The following points are pointed out from the example of Edogawa ward.(1) Perform adding to holdings of land in accordance with the design of land-exchange.(2) Site scale expansion may be smoothly performed by application of the small-scale land readjustment project.

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This paper explains how the people set up a personal network in their community when they had to transfer into a newly developed circumstances. Through a research work we did in 1999, include 30 interviews of residents who live in a newly built Large-scaled Public Housing Estate developed by the Hansin-Awaji Earthquake Reconstruction program.
The main findings I'd like to explain in this paper are 1) Residents, especially aged ones, prefer to communicate not with the neighbors in a new housing estate, but with their friends who were next doors before the disaster. 2) The data show a different tendency when they keep company with their neighbors between residents who concerned with their autonomous association as an officer and the others.
That is why, it might be necessary to use the community system like autonomous association more practically, incase of Community formation in a Large-scaled Public Housing Estate.

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