One Year Project: A Testament to Time and Nature by Kotaro Anzai

Award-winning Villa Design Emphasizes Sustainability and Harmony with Nature

The "One Year Project" is a villa situated in Inawashiro, Fukushima, Japan, an area known for its heavy snowfall during winter. The design of the villa is inspired by the idea of "borrowing" resources from the natural environment, rather than taking them. This philosophy is reflected in the construction process, which involved tree cutting, sawing, fabrication, and assembling, all done in harmony with nature.

What sets this design apart is its unique structural system. The villa is supported by steel posts that stand on local Inawashiro volcanic rocks, used as isolated footings. This design not only protects the villa from the 2m-high snow load in winter but also allows for an open vision, enhancing the connection with the natural surroundings.

The construction of the villa was a meticulous process. The bedrock congealed lava lying 80cm below the ground was used as a substrate. Natural volcanic blocks were installed as isolated footings, each carefully selected and thoroughly investigated. The steel posts connected to the wooden lattice-work stilt floor surface and the square roof surface, creating a forest-like structure that blends seamlessly with the environment.

The villa's design also prioritizes interaction with nature. The elevated structure allows the occupants to enjoy the natural environment throughout the year. The space under the building surrounded by stones serves as a playground for children, while the bridge connecting two blocks of the building provides a place to connect with nature directly.

The "One Year Project" faced several challenges during its construction, particularly with the foundation and structure. The use of local "Bandai stone" for the isolated foundations was a significant challenge due to the varying sizes and shapes of each stone. However, these challenges were overcome with meticulous planning and precision, resulting in a design that is not only aesthetically pleasing but also sustainable and harmonious with nature.

The "One Year Project" was awarded Platinum in A' Architecture, Building and Structure Design Award in 2019, a testament to its innovative design and commitment to sustainability. This project serves as an inspiration for future designs, emphasizing the importance of moving with time and nature.