Koichi Sakao's artistic practice is deeply rooted in place-based projects that explore the relationship between memory, community, and the natural environment. Through initiatives such as the Midori no Heya Project and the Town Memory Project, Sakao invites participants to engage with local landscapes and shared histories. These works often emerge from extended periods of observation and collaboration, resulting in installations and events that reflect the unique character of each location. By focusing on specific regions like Niigata and its water systems, Sakao's art becomes a living archive of regional identity, encouraging viewers to consider how environment shapes personal and collective recollection.

The Otano Kakera project exemplifies Sakao's commitment to working with communities to uncover hidden stories and overlooked fragments of everyday life. This initiative collects and presents small pieces of local culture, transforming ordinary objects and moments into meaningful artistic expressions. Participants contribute their own findings, creating a tapestry of shared experience that grows organically over time. The project highlights how even the smallest details can hold profound significance when viewed through a creative lens. It is a celebration of the overlooked, the discarded, and the ephemeral, giving voice to the quiet narratives that surround us daily.

Workshops form a vital component of Sakao's approach, bridging the gap between artist and audience. These hands-on sessions invite people of all ages to participate in the creative process, whether through drawing, collecting, or constructing. By lowering the barriers between maker and viewer, Sakao fosters a sense of ownership and connection to the artwork. The workshops are designed to be accessible and inclusive, encouraging spontaneous expression and collaborative discovery. Participants often leave with not only a finished piece but also a deeper appreciation for the ways art can emerge from simple, attentive engagement with the world around them.

The Ginza Frottage Project demonstrates Sakao's interest in capturing the texture and history of urban spaces. Using rubbing techniques, the artist records the surfaces of buildings, pavements, and other architectural elements, creating impressions that reveal the wear and marks of time. This method transforms the city itself into a source material, documenting the physical traces of human activity. The resulting works serve as tactile maps of place, preserving moments that might otherwise be erased by redevelopment or neglect. Through frottage, Sakao invites viewers to reconsider the familiar environment, noticing the subtle histories embedded in the surfaces they encounter every day.

Sakao's recent activities continue to expand outward, welcoming new participants and exploring fresh themes. Projects such as Hamada no Ki to Kodomotachi no Monogatari connect children with local woodlands, fostering environmental awareness through storytelling and hands-on creation. Announcements of new initiatives and participant recruitment reflect an ongoing dedication to community engagement. Each project builds upon the last, creating a growing network of relationships and memories. Sakao's website serves as a record of this evolving practice, documenting past exhibitions, upcoming events, and the many voices that contribute to each endeavor. It is a space where art meets life, and where the boundaries between creator and community gently dissolve.