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Utilization of forest resources

~ Editing ~

On this page, reference works are categorized for each proposed element.

​ Target works are National Architecture Student Award, National Graduation Design Award, JIA Master Design Exhibition, Tokyo Architecture Collection, Sendai Design League, Ara Brick Graduation Design Exhibition, National Joint Design Exhibition, Chubu Graduation Design Exhibition, Diploma Kyoto, Design Review, Hase Ko Competition, Daiwa House Competition, ERI Student Competition, Daito Kensetsu Competition, Furic Competition, Public Space Competition. In addition, we will categorize related videos, books, magazines, and buildings, aiming to be one of the largest and most advanced architectural design platforms.

Architectural work "Forest Laboratory" to circulate forest resources

Outline of work

Today's Japanese forests store large amounts of trees and are in increasing demand for logging and renewal. Due to the simultaneous planting of building timber forests after World War II, most of the current plantations are coniferous trees planted in the 1950s, and many of the trees continue to grow without being used, and the current forests are large. It is growing enough to take a tree.

In this book, "circulation" is defined as "recycling of forest resources", and the purpose is to promote the circulation of resources through the intervention of local people. We will conduct a forest utilization survey focusing on vegetation surveys and local activities in the forests of Yasato, Ishioka City, Ibaraki Prefecture. While logs are uneven in shape and difficult to use, they can be used as raw materials compared to sawn timber, so the yield is high and the processing load is low. Therefore, we will conduct a log construction method survey so that local people can easily intervene in the construction process through literature surveys and field surveys. The purpose of this plan was to create a place for local activities by utilizing non-distributed lumber. Instead of moving the trees in the forest to the outside of the site and sawing them, the logs are used as they are, and the forest is maintained while using up the trees that do not meet the distribution standards. By actually grasping the forest resources of Yasato, he presented an attempt of an architectural design method rooted in the region as a work. This means that building an architecture is the utilization of forest resources itself, and architectural design can be a social medium for sharing its use widely and spatially.

The transition of the river that becomes a forest  -Proposal for designing a moving river park in the lower Katsura River-

Outline of work

Rivers in the middle reaches of Japan are transforming into forests. Rivers that have transitioned due to reduced flood disturbances have created an unexplored green space in the city, while introducing new flood risks. Therefore, for the Katsura River in Kyoto, we propose an infrastructure that protects the city by increasing small disturbances and a "moving river park" where disturbances and transitions create a space, aiming to achieve both river environment and hydraulic control. A moving river park replaces the function of groyne, which is a river infrastructure that controls disturbance and protects the city, with amplification, and groyne that controls <non-moving> disturbance, and the fate of plant communities due to <moving> disturbance. And riverbed fluctuations. From the analysis of the current vegetation dynamics and flow structure, the movement of the river is amplified to create a fluctuating space. For the placement of the groyne to control the disturbance, river simulation software was used to predict the fluctuation for 50 years caused by the placement plan and the designed disturbance.
In the park, a wooden deck installed on the groyne that creates movement will be a place for people. The river that becomes a forest is repeatedly disturbed, and various environments such as reed beds, coves in the forest, shades of large willow trees and grasslands emerge from the polarized environment of dense forests and rivers, and eventually once every 50 years. Will be ready to accept a large-scale flood. The forested river provides a moving oasis for the city and conveys the dynamism of nature to visitors.

The source of the forest
――Analysis of the current state of forest resources and satoyama in Japan and proposal of a space for spinning satoyama and cities ――

Outline of work

Currently, 68% of Japan's national construction area is covered with forests. However, Japan's forestry industry has declined, and the number of degraded forests is increasing. In order to leave abundant forest resources for the next generation, it is necessary to aim to increase the number of people who will be involved in forests in the long term regardless of whether they are satoyama or cities. Nowadays, an increasing number of people in Japan, mainly in their 20s and 40s, are interested in satoyama and forestry, and are paying attention to settling in rural areas full of nature. Therefore, by utilizing the site of a factory that has not yet been planned to be used in the Satoyama area, a share house and area for those who come to spend weekends from urban areas for the purpose of living in the countryside, or those who retire and move to the countryside. Plan a community facility where you can interact with other people.
Before starting to live in a satoyama, first of all, by living in this share house for a certain period of time as a temporary local inhabitant, you will know the good and bad of the area and experience the satoyama. Those who settle in the satoyama after the experience period and those who return to the city center will both remember the scenery of the satoyama, become their second home, and become something that can be done somewhere in their hearts. It is this small feeling that triggers the regeneration of satoyama and forests. We also hope that this community facility will be a new gathering place for local residents.

Forest workshop
--Odawara Wood Design Center -

Outline of work

Odawara City, Kanagawa Prefecture, is aiming to use regional timber in collaboration from upstream to downstream regarding the distribution of trees. However, at present, the demand for Odawara raw materials is sluggish, and the quality of timber carried out from poorly maintained forests is evaluated low due to insect damage, etc., and the market price is extremely low. For this reason, the only log market in the prefecture does not smoke to bring in logs other than high-quality timber, and it is only used for thinning and chips.

The purpose of this master's design is to deepen the understanding of Odawara raw materials and expand their use by connecting Odawara craftsmen and foresters with the general public through manufacturing, using the site of "Ikoi no Mori, Odawara City". And plan the Odawara Wood Design Center.

By providing a place for manufacturing in "Ikoi no Mori, Odawara City," which is adjacent to the forestry site, it is possible to realize a compact flow until the trees in the mountains are used, and the wood is used sustainably. I think that it will be a mechanism to be done.

In this construction, the massive Holtz construction method is adopted as a construction method suitable for Odawara raw materials, and by adding a shift to the conventional connection method, an air layer is created, a panel with a heat insulating effect is developed, and the panels are joined together. , Constructed continuous roofs and slabs.

With this master's design, we were able to propose a base for utilizing local lumber through manufacturing. In addition, we were able to propose an off-the-grid architecture that coexists with nature.

Exchange facility utilizing thickets-  For the southern area of Kitamoto City, Saitama Prefecture  ---

The southern part of Kitamoto City, Saitama Prefecture, was once a rural area with abundant thickets. The thickets created as a source of fuel and fertilizer for farmers were maintained and renewed along with people's activities. However, due to the modernization of resources that began around 1955, thickets have been left unattended, and the organic relationship between people and forests that existed as part of their lives has been lost. Furthermore, with the recent increase in population, thickets are being targeted for residential land development and are declining. As a result, this area is a mixture of farmers who have lived for a long time and new residents who have entered the area due to the conversion to residential land. In such a place, inheriting the thickets, which is a historical feature of the town, is considered to affect the attachment of the people living there to the place, which is an important issue for the survival of the area. Therefore, in this study, we conducted a literature survey and field survey in the southern part of Kitamoto City, Saitama Prefecture, to clarify the characteristics of utilization in thickets and the actual situation of exchanges, and by proposing exchange facilities as a case study, the historical characteristics of the area and the present age. The purpose is to propose a new form of exchange in a wooded area that makes the best use of the living environment of Saitama as an architectural space. In this study, we proposed an exchange facility using four sites as case studies in a wooded area in the southern part of Kitamoto City. We set up an exchange facility to open a wooded area and a walking route that forms a group from the river to the satoyama in the old village, picked up the wooded area with different characteristics, and determined, examined and designed the exchange target and the utilization method of the wooded area for each case. As a result, as an architecture, as an exchange facility for citizen groups that maintain and manage thickets and people who use the surrounding facilities, the space composition with roofs and open spaces that support new exchanges born from thickets was shown.

Living landscape space-Secondary natural transition and architecture-

"Small is great."
In 1973, it was the words of economic thinker Ernst F. Schumacher. In response to this throw that should still be reconsidered, I think about what "small architecture" is.
"Bigness, or the problem of being big"
A text by Rem Koolhaas in 1994. Isn't "small architecture" an architecture that is not "bigness"? I would like to quote the fifth theorem, "There is no context, it just exists", and consider an architecture that cannot exist without context.

As a space with a strong context, I focused on and analyzed the "secondary natural space" with the intervention of human hands. From the perspective that the natural landscape is not just a background but a space, we treat everything from native nature to architecture as a transparent space.

Among the secondary nature, with the theme of satoyama regeneration, we planned to keep people involved in the forest while renewing the abandoned artificial forest to broad-leaved forest / mixed forest. The site is Satoyama in Himeshima, Sammu City, Chiba Prefecture. To plan a master plan and to connect people and satoyama based on the guideline of utilizing artificial forests that are advantageous as timber resources and renewing other abandoned artificial forests to broad-leaved forests and mixed forests. Design four programs (campground, observatory, training facility, accommodation facility).

Space for spinning people and forests-Satoyama experiential learning base facility for the purpose of managing and utilizing forests-

In recent years, interest in environmental conservation has increased, and familiar nature (satoyama) has been attracting attention.
In the field of education, opportunities to come into contact with nature by using the time for comprehensive study are increasing, and urban residents want to come into contact with nature, and eco-tours are planned. In addition, there are civic activity groups related to satoyama in various places, and they manage and utilize forest land, which is a common property of the region. In recent years, there has been a movement to open university facilities at universities, and there are increasing opportunities to open the training forests attached to the universities to the general public.
In this design, we propose an experiential learning base facility for the purpose of managing and utilizing forest land by connecting people with increasing demands for nature and universities with abundant knowledge and skills.
This base facility mediates the abundant natural environment of the training forest so that people can use it to increase the value of nature. do. Forest roads will be laid around the facilities of the bases in the forest to improve access to the field, and new forest roads will be designed continuously with the facilities in addition to the existing forest roads.
It seems that architecture and nature are not independent, but have various relationships, such as those that are influenced by architecture and protect nature, and the nature that directs architecture. This Satoyama experiential learning facility specializes in research and exercises, which is a proposal to physically guide people into nature using pro-natural tools, to coexist with people, architecture and nature through activities, and to increase the value of nature. I tried this design with the expectation that it would be reborn as a community facility that would be familiar to me from an educational and research institution that had become familiar.

Town with public bath ── Rental housing linked to the forest
There is a gap between the renovation of buildings in the area around Nagano Station where the real estate value is maintained and in the area with brand power that makes the best use of the charm of the gate around Zenkoji in Nagano Prefecture, and the renovation of the suburbs, which is attractive. No reproduction has been found. A public bath is placed so as to connect two housing complex buildings that are built in parallel. Each dwelling unit will be renovated by removing the bathroom, which requires an initial cost, and the residents will use the hot bath facility in their daily lives. A wooden deck will be set up between the two buildings to create a place to serve as a saucer for the local community.
Dobadoba — Houses with wooden horse roads shed trees throughout the city —

We propose a sustainable regeneration of local cities that utilize the cyclical nature of forestry by considering architecture that connects local cities that are likely to decline in the future with forestry in the mountainous areas that are currently declining, starting with the shopping district. do. Pillars whose cross-sectional dimensions are gradually decreasing are arranged along the street, and the "gawa space" where those pillars are replaced one after another, and "living in a living business corresponding to the size of the cross-section of the pillars" Architecture is created in two structurally separated spaces called "naka space". These two spaces are connected by a lumber yard, a lumber yard, and a lumber-carrying lumber yard, a place and road where lumber was once shed in the mountainous areas, and eventually the lumber circulates throughout the city. go. The act of shedding trees adds new value to the street.

Ceremony Relocation-Living in the Village Lumberyard-

The wooden dwelling will move through this lumber yard. The large pillars flow to the smaller pillars of the house next door, to the smaller pillars, to the smaller wooden sashes, at the time of replacement of the damaged lumber. The four distinctive houses, such as pillars, floors, and roofs, which have slightly larger living areas, have a common space to fill the margins of each other's lives, and when repairs are made, large materials are brought back to the lumber yard. It is also used for repairing a house somewhere. Proposal of a group of wooden houses with a self-sustaining symbiotic body like that of Shikinen Sengu

​~ Related architect ~
Algorithmic Architecture

Algorithm architecture is a design method that uses information processing technology and involves fine discrete processes with fine resolution, and redefines the relationship between nature and humans, and the relationship between nature and act = artificial construction. Nature is an infinite continuum, but when human interpretation is added to it in the process of design, it is inevitably "discretized" into finite elements. An algorithm is also a method for discretizing and understanding nature, but unlike the conventional coarse resolution discretization process up to modern times, it discretizes nature with finer resolution and nature as a continuum. It is an attempt to get as close as possible to itself.

​~ Related architectural ideas ~
Algorithmic Architecture

Algorithm architecture is a design method that uses information processing technology and involves fine discrete processes with fine resolution, and redefines the relationship between nature and humans, and the relationship between nature and act = artificial construction. Nature is an infinite continuum, but when human interpretation is added to it in the process of design, it is inevitably "discretized" into finite elements. An algorithm is also a method for discretizing and understanding nature, but unlike the conventional coarse resolution discretization process up to modern times, it discretizes nature with finer resolution and nature as a continuum. It is an attempt to get as close as possible to itself.

[2] Architectural design / work pattern of each proposal process

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[A2] Subjective proposal of the theme

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[D2] Subjective proposal of design method

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[B2] Subjective proposal of the site

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[E2] Subjective proposal of form

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[C2] Subjective proposal of the program

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[F2] Subjective proposal of space
[1] Evaluation items for architectural design and each proposal process

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[D1] Objective evaluation of design method

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[B1] Objective evaluation of the site

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[E1] Objective evaluation of form

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[C1] Objective evaluation of the program

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[F1] Objective evaluation of space
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