House in Minami-machi by Jun Yamaguchi Architects: A Harmonious Blend of Home and Studio in Matsuyama, Japan

Located between the bustling city center of Matsuyama and the historic Dogo-Onsen—Japan’s oldest hot spring—House in Minami-machi by Jun Yamaguchi Architects is a compelling architectural statement that merges living and working spaces in a deeply contextual, sustainable design. Serving as both the personal residence and architectural studio of the architect, this 126 m² house embraces transparency, locality, and connection to nature.

A Dual-Purpose Design: Private Living Meets Public Interaction

Unlike traditional homes, this residence opens its doors to visitors, reflecting the architect's intention to create a “visitable” house—an inclusive space where architecture becomes a lived and shared experience. The spatial layout thoughtfully balances privacy and openness: the ground floor hosts communal and office spaces, while the upper level becomes increasingly private as one moves away from the entrance.

Strategically placed voids and glass partitions maintain a sense of visual continuity and acoustic permeability, allowing inhabitants to feel each other's presence without sacrificing personal space. A glass door subtly links the architecture office with the dining kitchen, reinforcing the integration of life and work.

Material Authenticity and Regional Vernacular

The façade of the house is clad in Yaki-Sugi—a traditional Japanese technique of charring cedar wood to enhance durability and weather resistance. This choice pays homage to Ehime Prefecture's cultural heritage, where this technique has long been used in vernacular architecture. The rich texture and charred beauty of Yaki-Sugi not only offer a timeless aesthetic but also foreground the craftsmanship of local Daiku (Japanese carpenters).

Despite perceptions of Yaki-Sugi as old-fashioned, Yamaguchi seeks to reinvigorate its appeal by highlighting its tactile and visual richness through careful detailing and finish work.

A Minimalist Canvas for Daily Life

Inside, the home is deliberately restrained in its material palette. Walls and ceilings are painted in soft, matte white, serving as a neutral backdrop for the evolving personal life of its occupants. The flooring features locally sourced Japanese cedar, bringing warmth and organic character to the interiors.

The architect conceptualizes the interior as a “living campus”—an adaptable and evolving space meant to grow with its inhabitants. As daily life adds layers of memories, objects, and experiences, the design allows for a personalized and fluid domestic environment.

Light, Landscape, and the Japanese Sensibility

Windows are meticulously placed throughout the house to frame views of the surrounding greenery and to invite natural light into every room. The light transitions beautifully over time, shifting in tone and intensity and casting subtle shadows across the clean surfaces.

A small concrete path leads visitors through a lush garden to the elevated concrete entrance, creating a serene transition between public and private realms. The surrounding landscape, designed by Chiba Plantation, features dense planting that connects the house with its urban environment. This emphasis on shared greenery fosters a sense of community and offers a moment of pause for passersby.

All Photographs are works of Hiroaki Zenke.