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Ak house 2020

Residential Architecture

Genius Loci — a home that reflects and renews culture.

“Genius Loci” is a term formed from the Latin words genius(guardian spirit) and loci (place), referring to the spirit inherent to a specific land— the unseen presence that quietly dwells within a place.

Reinterpreted in architectural theory from the 18th century onward, this concept proposes that architecture and communities should not oppose the land, but instead be shaped by listening carefully to the forces already present there.

What, then, is the Genius Loci of Okinawa?

The site is located in a newly developed residential area in the southern part of Okinawa’s main island. The owner, an entrepreneur, and his family wished for their home to function not only as a residence for family life, but also as a host house that welcomes business guests and accepts international exchange students for their children.

While surrounding forests remain in areas still under development, large apartment buildings have been constructed in anticipation of future growth, creating a landscape of anonymity distinct from traditional residential neighborhoods.

We continually asked how the connection to the earth spirits of this place— gradually being covered over—could be restored within the home once more.

One response to this question was to adopt the spatial structure of traditional Okinawan houses, placing a courtyard at the center. A Japanese-style room, serving as the seat of honor, is located to the right, while a series of private rooms extends to the left, connected by a corridor that also functions as an art gallery. At the front, the living room is positioned as the primary place of gathering— the first and second seats of welcome.

In the past, Okinawan people welcomed guests in spaces deeply connected to gardens and nature. Deep eaves extending three meters blur the boundary between inside and outside, and through the courtyard and front spaces, people are gently reconnected with nature. This house is imbued with a form of hospitality unique to Okinawa.

Okinawa is also a land with a long tradition of loving stone and stacking it with care. The memory of materials continues from Ryukyu limestone, to postwar concrete block walls, and onward to reinforced concrete construction. Cedar board-formed concrete walls define the exterior, while stacked brick forms the hinpun wall, and former Ryukyu limestone is reused within interior spaces dedicated to hospitality.

By contrast, the modern entrance— a space unknown in traditional houses— is deliberately left unlined with stone, using white surfaces instead to create a moment of quiet blankness.

Now, as this once-vague “something” faces the risk of being lost, we must once again examine its meaning and confront its identity.
The long intertwining of nature and human life, quietly remaining in the land as a presence beyond words— this is what we understand as Okinawa’s Genius Loci. Through architecture, we place great importance on reconnecting this fragile continuity.

2021 - Good Design Award Hosted by the Japan Institute of Design Promotion
2021 - Gold Prize, JCD OKINAWA Spatial Design Award
Hosted by the Japan Commercial Environment Design Association
2021 - Encouragement Award, Kyushu Architecture Award
Hosted by the Architectural Institute of Japan
2024 - Excellent Award, Private Residence Category
RTF Awards GLOBAL ARCHITECTURE & DESIGN AWARDS
Ak house

Ak house 2020

Residential Architecture

Genius Loci — a home that reflects and renews culture.

“Genius Loci” is a term formed from the Latin words genius(guardian spirit) and loci (place), referring to the spirit inherent to a specific land— the unseen presence that quietly dwells within a place.

However, this was not an act of renewing the landscape, but rather a rebuilding to hand down its presence and memories to the next generation.

What the client company sought was not merely a resort or accommodation facility, but an “open folk house” that would quietly convey Okinawa’s original landscape and culture and pass them on to future generations. This place was called upon to assume a new role while continuing to carry the memories embedded in the land.

The deep eaves (amaba) and expansive openings, symbols of traditional Okinawan houses, are originally forms of wisdom that receive wind and shadow and allow people to live in harmony with nature. At the same time, under current wooden construction regulations, they present major challenges, such as insufficient shear walls and vulnerability to uplift during typhoons.

In this project, after conducting structural analysis, we adopted a hybrid structural system that combines traditional timber joinery with partially introduced steel braces and beams as reinforcement. This choice was made not to trace tradition merely in form, but to inherit its philosophy and renew it as structure.

The floor plan follows the traditional Okinawan relationship between the “front room” and “back room.” Wet areas requiring moisture control are enclosed within reinforced-concrete boxes and placed between these two spaces, so as not to disturb the breathing of the wooden architecture.

In preparation for flood damage, the foundation was not constructed in the traditional stone-base method, but formed in reinforced concrete up to the raised floor level.

The original plan to reuse cement roof tiles and charred cedar board formwork was unavoidably altered due to the COVID-19 pandemic that coincided with the design period. The retirement of the last cement-tile craftsman in Okinawa, and difficulties in storing exterior wall materials— these events once again confronted us with the weight of time and the fragility of disappearing craftsmanship.

The water basin filled from an old well serves as a biotope that restores circulation to this land once more. Together with the towering Fukugi trees, deep eaves, and expansive openings, it quietly shapes the landscape of this new wooden folk house.

While reflecting on the flow of eternal history, we aim to create an architecture that becomes a place where people gather, converse, and cultures quietly intersect—protecting the original landscape while opening gently toward the future.

2021 - Good Design Award Hosted by the Japan Institute of Design Promotion
2021 - Gold Prize, JCD OKINAWA Spatial Design Award
Hosted by the Japan Commercial Environment Design Association
2021 - Encouragement Award, Kyushu Architecture Award
Hosted by the Architectural Institute of Japan
2024 - Excellent Award, Private Residence Category
RTF Awards GLOBAL ARCHITECTURE & DESIGN AWARDS
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