Malang is the second largest city in East Java after Surabaya. In general, the problems in Malang are similar to those in other big cities in Indonesia. Although urbanization is especially important for economic growth, it results in the degradation of environmental quality and promotes flooding, congestion, urban infrastructure problems, and slums. The tendency of the built-up area of Malang to increase faster, along with the population growth and development expansion, indicates that the city will surpass the region's holding capacity sooner than it should. Such conditions create an uncomfortable living environment. One way to make the city more comfortable, safe and in harmony with nature is to apply the green city (GC) concept. The purpose of this study is to analyse and evaluate the implementation of the GC concept in Malang. This research employs the gap analysis method, which compares the ideal GC conditions with the actual conditions in Malang. The results indicate that of the eight GC indicators, Malang focuses on three: green planning and design, green open space, and green community. Building construction comprises the lowest score of 0%, while the highest score is green open space indicator with 50%.

The Land use zoning (LUZ) is necessary to control the urban land use. Due to the housing development, the urban sprawl took place in fringe areas of Surabaya in which the real sector has rapidly increased in the rural-urban fringe between Sidoarjo and Surabaya. It leads the problems of despairing rural housing and decreased production of natural resources due to social inequality in the rapid development process. In achieving a sustainable urban form in urban fringe, this project is conducted with zoning review in the border area of Sidoarjo and Surabaya. The existing zoning does not distinguish between project-based housing development and home owner-based housing development. Co-existing Dividing Line (CDL) as a clear line between different types of residential use is suggested in order to provide a basis for planners and developers in the construction of project-based housing without disturbing the home owner-based housing for a sustainable urban form

Japan's largest platform for academic e-journals: J-STAGE is a full text database for reviewed academic papers published by Japanese societies

Japan's largest platform for academic e-journals: J-STAGE is a full text database for reviewed academic papers published by Japanese societies