Wagon Remodeling Food Van

The design stems from a desire to reinterpret the everyday through quiet observation.

I am drawn to what is often overlooked — the unspoken and hidden needs that exist between people, places, and time.

The Wagon Remodeling Food Van began as an exploration of how a nostalgic typology — the Japanese stone roasted sweet potato food wagon — could evolve into a contemporary mobile retail solution.

Rather than merely replicating tradition, I sought to extend its spirit: the gentle encounter on the street, the fleeting moment of warmth, the architecture of movement itself.

My main principle is to design not by adding, but by revealing — to uncover layers of meaning that already exist within our surroundings.

Through subtle shifts in structure, material, and light, I try to create spaces that make us pause and re-see the ordinary.

The main focus was to make people notice — to shift attention from the product itself to the person behind it.

In Japan, the stone roasted sweet potato food wagon is a nostalgic winter icon, yet it has long existed as an anonymous presence; who sells it has never really mattered.

I wanted the design to reveal this hidden individuality — to make the act of selling visible as an expression of identity and care.

At the same time, being situated in Kyoto, I envisioned it as a gentle source of light — like a lantern softly illuminating the cold and quiet winter streets.

Beyond its function, the wagon was designed to bring a sense of warmth and awareness, connecting people through both its presence and its glow.

Receiving this award made me feel that my way of thinking about design was not mistaken.

It reaffirmed that even quiet, subtle ideas can resonate with others.

This recognition encourages me to keep designing with the same sensitivity — believing that a gentle design can still have a strong voice.

The design began with a simple yet pressing issue: many mobile sweet potato wagons look similar, making differentiation difficult. The client already offered a quality product and service, but because sales happen after dusk, the wagon needed to be instantly legible from a distance—independent of any lighting attached to the vehicle itself. This led to the decision to revisit the entire visual language of the vehicle.Set within Kyoto—a city whose streetscapes are organized by a clear rhythm of horizontal and vertical lines, from traditional machiya lattices to contemporary façades—the design treats that orthogonal order as the backdrop. Against this “ground,” diagonal elements are introduced to quietly single out the wagon in the urban field. The result is heightened visibility without disturbing the streetscape, producing a clear figure–ground contrast.The diagonals also serve structural and spatial purposes: they stabilize the frame while allowing an expressive interior layout within a small footprint. In doing so, the design balances clarity, function, and identity—all within a compact, mobile format.

In Kyoto’s biting winters, the archetypal street scene is guided by gentle light—paper lanterns on carts and small andon in the alleys that don’t flood space so much as invite you forward. I wanted to capture that atmosphere without replicating old forms. Stone-roasted sweet-potato wagons have long been part of this season: a small winter joy you bring home to family, a moment that warms cold hands. The design set out to amplify that memory—treating illumination as a soft beacon rather than spectacle. Warm, low-glare light grazes frames and working surfaces, with controlled fall-off around them, so the wagon reads clearly after dusk yet remains calm and intimate up close.The diagonal elements grew from two linked intentions. First, a structural one: bracing a compact body while carving out a slightly expanded interior pocket where serving and conversation overlap. Second, an urban one: in a city whose streets are organized by horizontal and vertical order, the diagonals establish a clear figure–ground relationship that sets the wagon apart without shouting. Together, the quiet lighting and the oblique frame produce a legible silhouette at a distance and a welcoming presence at the curb—an everyday warmth shaped for Kyoto’s winter.

Budget set our tempo, but the work was fundamentally collective. The carpenters and waterproofing specialists were not contractors “below” design—they were team members, thinking and deciding with us. We prototyped, failed, adjusted, and tried again together. The result unfolded over four wagons, each one learning from the last.The first generation began under the tightest constraints, so we adopted a straightforward timber frame assembled by the team. That choice matched the moment: fast to realize, understandable on site, and appropriate even when we considered long-term upkeep. As the wagons went into service, field use revealed what held up and what needed rethinking; we folded those lessons into the next build.As resources and understanding grew, later iterations became clearer. By the fourth wagon we executed a full renewal, transitioning from timber to a steel frame to increase durability, precision, and daily robustness. In parallel, close work with the waterproofing specialists simplified the exterior strategy: keep the body calm and repairable, treat joints and openings with care, and let necessary lines read as part of the composition rather than decoration.Functionally, this collaboration produced drier, tougher, easier-to-service interiors; aesthetically, it clarified an economy of means—structure doing the speaking, light helping legibility, and the envelope remaining visually quiet. The project did not succeed because of a hierarchy; it progressed because each discipline contributed at the right moment, and each generation answered the previous one’s questions.