The traditional Japanese teahouse garden is the essence of traditional Japanese tea culture and traditional Japanese architecture. The stepping stones laid in the tea garden offer a connection between the tea house and the external space. Taking the circulation of stepping stones in the traditional Japanese tea gardens as the object, the present study analyzed and examined its layout form, physical form, and its constitution relationship with landscape elements through data survey and other means. It has revealed the circulation of stepping stones allows for the transition of time and space in the process of entering a tea house through a "complicated" design method.

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Autism spectrum disorder (ASD) is the developmental disorder which specified with (A) Persistent deficits in social communication and social interaction across multiple contexts, and (B) Restricted, repetitive patterns of behavior, interests, or activities. In Japan, most of the preschool children with ASD attend child development support facilities. While many studies have revealed the effectiveness of designing environments on supporting children with ASD, it is not understood what outdoor play environments is needed to support them at the child development support facilities. To examine that, this study conducted literature review focused on findings which applicable to design those facilities. As the result, it is important to design with consideration for the problems of sensory issues, the difficulty of prediction, compared with the difficulties of social communication and social interaction. Also, it is needed to design with understanding play features of children with ASD such as their concentration on their favorite play, their own purposes on their play. As the issue in the future, it is needed to reveal the reality of (1) how children with ASD play and (2) how the staff support them at the facilities.

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Keino Matsubara was designated as a national cultural asset, "Scenic Beauty", in 1928, and is a national park with many landscapes such as pine forests with green pines and other vegetation growing among white sand. It also features a beach for swimming and a campsite, making it a popular location for tourists. However, since the number of tourists has been declining in recent years, it is necessary to create a plan for town development through tourism that restores prosperity while simultaneously preserving the environment. In this report, we get an understanding of the actual use of Keino Matsubara by tourists visiting the area, open a resident workshop based on that understanding, and provide direction for tourism-based town development.

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Mt.Rokko, located in the northern part of Kobe City, is home to a large number of native species of the genus Hydrangea. Among them, Hydrangea serrata has high genetic diversity, with large regional and individual variation. Therefore, we conducted a survey of native habitats to understand the distribution and trait diversity of local individuals of Hydrangea serrata in the Rokko Mountains, and to collect and conserve rare mutant individuals. This study was conducted in collaboration with The Kobe Municipal Arboretum, which is located in the Rokko mountain range and has a large collection of Hydrangea species. However, the native habitats in the Rokko mountain distribution are not well known, and we intend to identify, protect, and cultivate the rare individuals. Additionally, we plan to identify the environmental conditions of the native habitats，cultivate the species，and exhibit in the Botanical Garden.The environmental conditions of the native habitats will also be used as a reference for the cultivation and display of Hydrangea serrata in the botanical garden. As a result of the survey, it was found that the native species grows at altitudes of 400 m or higher range in the Rokko mountain, widely in cedar forests, and scattered along streams, etc. Temperatures not exceeding 30℃, humidity of 80% or higher, northern slope, moderate sunlight through trees, slope, and valley shape were considered favorable conditions for growth.

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Vegetable gardening, which can be enjoyed all the way through to harvesting, has become increasingly popular in urban areas in recent years. However, in urban areas where there is no farmland nearby, it is necessary to use planters of a certain size and depth to secure the soil necessary for vegetable cultivation. For this reason, we have designed and produced original planters made of cedar wood and have used them for vegetable cultivation. However, this planter design had several drawbacks, including the need to communicate the specifications to a lumber store and have the parts made each time they were produced, the complicated structure requiring many screws for assembly, and the tendency for the solid cedar wood to decay and deteriorate due to soil moisture in the planter. In order to solve these problems, a new prototype planter using plywood with a simple structure was developed, and its ease of assembly and durability against soil moisture were verified. As a result, we confirmed that the planter greatly reduces assembly labor, and its durability against moisture is the same as that of conventional planters.

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