Sustainabowl Pavilion: Celebrating Japanese Craftsmanship with Sustainable Design
Small-Scale Sustainable Architecture at the Welsh School of Architecture
The Sustainabowl Pavilion is a student project by Leilou Walmsley, a third-year undergraduate at the Welsh School of Architecture. Inspired by centuries-old Japanese building traditions, it combines traditional craft with a clear commitment to sustainability — every element is either biodegradable or recyclable.
The Miyadaiku Method
The pavilion is rooted in the Japanese Miyadaiku technique — a craft that uses precisely interlocking timber joints instead of glue, nails or screws. By using this traditional construction method, Leilou poses a simple question: what if impermanence and recyclability defined how we build?
The timber structure is left exposed, in the spirit of architects like Shigeru Ban and Kengo Kuma. Every dovetail and mortise joint is visible — highlighted as craftsmanship rather than hidden behind finishes.
Earth and Metal: Materials in Dialogue
The pavilion’s wattle and daub wall infill connects to both Japanese and global vernacular building traditions. Wattle and daub — woven wooden slats coated with a mixture of clay and straw — reinforces the project’s commitment to sustainability. Every surface can return fully to the earth.
Above, an aluminium roof introduces a contemporary contrast. Aluminium is infinitely recyclable — so when the pavilion is eventually dismantled, nothing ends up in landfill.
The result is a structure that is, as Leilou notes, “entirely biodegradable or recyclable.”
A Pavilion for Food and Gathering
At its heart, the Sustainabowl Pavilion is a place for food — designed specifically to serve bowls of Japanese curry. This programme drives both the spatial layout and the architectural language.
The open floor plan encourages movement and gathering, while the restrained material palette evokes the calm of a Japanese teahouse. Details nod to Japanese aesthetics throughout: the curve of the eaves, filtered sunlight across timber beams, and the measured proportion of structural bays.
The approach is both functional and symbolic — inviting visitors to slow down, share a meal and reflect on their relationship with the built environment.
From Studio to Site
Sustainabowl emerged from Leilou’s undergraduate studies at the Welsh School of Architecture. Sketches became models, models became detailed joinery studies, and finally a pavilion took shape — rooted in tradition but unafraid of innovation.
Leilou reflects: “I wanted to explore how small-scale design could be truly sustainable, not just in materials, but in how people use and dismantle it. The Miyadaiku method captivated me because it proves that temporary can also be beautiful and enduring—just in a different way.”
Her tutors cite the project as a benchmark for integrating environmental thinking with architectural design. Sustainabowl has become a talking point in crits — admired for its ambition and proof that impactful design is possible at a modest scale.
Connect With Leilou Walmsley
Leilou is open to connecting with fellow students, practitioners and collaborators who share her interest in sustainable, small-scale architecture.
Connect with Leilou via LinkedIn to discuss her work or explore collaborations.
Sustainabowl is a reminder that sustainability and beauty need not be at odds. By combining traditional methods, biodegradable materials and a programme as simple as sharing food, Leilou offers a blueprint: start small, think deeply and design with the future in mind.
Add a comment