Karya Amami House Rumah oleh Kazunori Sakai adalah pemenang yang sangat dihormati dari 2026 A' Design Award Perak yang sangat bergengsi dalam Kategori Kompetisi Desain Arsitektur, Bangunan dan Struktur.

PerakArsitektur· 2026

Amami House Rumah

oleh Kazunori Sakai

Klien: Sakai Architects

Pemenang A' Design Award Perak dalam Kategori Arsitektur

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Tentang Amami House Rumah

Amami House adalah hunian mandiri (self-sufficient) di Pulau Amami, Jepang, yang dirancang untuk sebuah keluarga dengan empat anggota. Pulau ini memiliki iklim panas dan lembap dengan tingkat radiasi matahari yang rendah. Rumah ini mendukung kehidupan yang nyaman tanpa bergantung pada jaringan listrik maupun pendingin udara. Strategi pasif seperti ventilasi alami, pencahayaan alami, dan insulasi mengurangi kebutuhan akan sistem mekanis. Bentuk atap tradisional hip-and-gable (atap limasan berpelana) diinterpretasikan ulang dengan fitur performa kontemporer. Pemanas air tenaga matahari, sistem pengomposan, dan kebun rumah melengkapi siklus kecil kemandirian ini.

Pengakuan

Tentang A' Design Award Perak

Amami House Rumah adalah pemenang A' Design Award Perak, pengakuan yang sangat bergengsi yang diberikan kepada desain kelas atas yang indah dan mengesankan. Pemenang Perak adalah karya yang sangat cemerlang dan sangat kreatif yang menggambarkan keahlian, bakat, dan ketajaman luar biasa para desainernya. Amami House Rumah diharapkan menjadi karya yang menakjubkan, etalase keahlian, sangat profesional, dan sangat inovatif. Desain pemenang A' Design Award Perak ini adalah penemuan yang sangat menonjol dan dikagumi yang bermanfaat bagi dan memajukan batas-batas seni, sains, desain, dan teknologi. Amami House Rumah adalah kreasi yang sangat dicemburui yang membangkitkan keinginan, membawa perasaan positif, dan memercikkan keheranan dan kekaguman.

Di Balik Desain

Kit Pers

Kredit, anggota tim, dan detail teknis yang disediakan oleh desainer.

Keunikan: Located on Amami Island, an island with a hot and humid climate and among the lowest levels of solar radiation in Japan, this self-sufficient house investigates how a family of four can live comfortably without dependence on the power grid or air conditioning.

Rooted in the island’s unique climate and culture, the design reinterprets vernacular architecture through passive strategies, including natural ventilation, daylighting, and insulation, thereby minimizing reliance on mechanical systems.

The project presents a sustainable model of living in harmony with nature, nurturing resilience, and quietly redefining what it means to dwell in the modern world.
Dimensi & Kemasan: A vacuum-tube solar water heater installed on the east-facing roof supplies domestic hot water, reaching 60 to 97 degrees Celsius in summer and around 30 degrees in winter. Only minimal backup from a gas heater is needed, reducing gas consumption to less than half of that in the family’s previous rental home. Groundwater use was initially considered, but high iron content led to the adoption of a public water supply for greater reliability. The sauna is heated with wood repurposed from local construction offcuts, creating a circular resource exchange with nearby builders. A composting system turns kitchen waste into fertilizer for the home garden, where vegetables grown on-site return to the dining table, forming a small yet tangible cycle of self-sufficiency.
Tag: Off-grid housing, Passive design, Self-sufficient living, Vernacular architecture, Japan, Sustainable architecture, Resilient design, Energy autonomy, Community living, Climate-responsive design
Teknologi Produksi: Amami is often called the “Island of Yui,” known for its deeply interwoven social ties. Traditional celebrations for children’s milestones often bring together more than 80 relatives and neighbors, reflecting a collective culture where child-rearing is shared across families and the wider community, and homes have historically functioned as both private and communal spaces. In recent years, however, such practices have diminished due to nuclear families, standardized housing, and the impact of the pandemic. This house responds by reintroducing openness and generosity into the domestic realm, creating spaces where people can naturally gather and share time together, reviving and sustaining the island’s cultural traditions.
Tantangan Desain: The hardest part was designing a truly self-sufficient house in one of Japan’s most demanding climates—hot, humid, and with limited solar radiation—while removing dependence on the power grid and air conditioning. Balancing comfort and resilience required continuous testing of passive strategies, energy autonomy, and spatial composition, with every decision responding precisely to local climate data. Equally challenging was integrating cultural elements such as the dispersed house form, the openness of yui community ties, and traditional roof expressions into a contemporary language sustaining both environmental and communal life.
Inspirasi: Inspired by the vernacular landscapes of Amami, where corrugated metal roofs are commonly seen across local settlements, the design inherits the traditional hip-and-gable roof form and integrates contemporary performance features such as insulation, ventilation, and natural lighting. Through this synthesis, the project reinterprets and reconstructs the roof as a new architectural typology that connects local identity with modern functionality.
Durasi Proyek: Design Period: February 2018 – December 2023
Construction Period: January 2024 – August 2024
Amami island, KAGOSHIMA, JAPAN.
Alur Operasi: The project gently explores a sustainable way of living in harmony with the natural environment. Embracing the unique climate and culture of the southern islands, it quietly reexamines what it means to dwell in the modern age.
Anggota Tim: KAZUNORI SAKAI（ARCHITECT)
MASAYUKI TAKATA (Structural Engineer)
TOMOHIRO URATA (Garden Designer)
KAZUHIKO HANAI (Lighting Designer)
KAZUNORI KAWAGUCHI (Main Contractor)
MAKOTO TANAKA (Carpenter)
MICHIHIKO MINESHIMA (Electrical Contractor)
YASUNORI SAKAE (Plumbing Contractor）
Kredit Gambar: TOSHIHISA ISHII