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Cork Insulation and Stepped Terraces Define a Sustainable Community Home

Author:
Adrien Thivolle
Cork Insulation and Stepped Terraces Define a Sustainable Community Home
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With a unique structure of curved geometries crafted from pine, combined with cork insulation and accessible stepped terraces, the community home is designed to promote social interaction and sustainable living.
5 key facts about this project
01
Zome structure is based on a double spiral geometric design.
02
Five large entrances facilitate easy access from all sides.
03
Interior space is column-free, allowing flexible use of 226 square meters.
04
Cork insulation enhances sustainability and thermal performance.
05
Outdoor terraces promote social interaction and connectivity with nature.

The Spirala ecovillage is situated in the rolling hills of eastern Portugal, characterized by a landscape of granite boulders, fig trees, pines, and cork oak trees. The community home, named the Zome, serves as a central place for gathering and communal activities. Its design concept focuses on geometric shapes that connect with nature, fostering a sense of community and encouraging sustainable living.

Design Concept

The Zome features a unique geometric structure made up of diamond-shaped panels arranged in a double spiral. This design not only creates visual interest but also echoes the natural forms found in the surroundings. Positioned at the highest point on the site, the building captures sweeping views of the distant countryside, establishing a strong link between the structure and its environment.

Spatial Arrangement

The interior space of the Zome encompasses 226 square meters, providing an open layout free of columns. This allows for flexibility in how the space is used. The main multipurpose room is separated from a service area by an arched partition, creating a balance between privacy and openness. The room's acoustics are well-suited for various activities, such as gatherings and meditation, reflecting the communal spirit intended by the design.

Access and Interaction

Five large entrance doors facilitate access to the Zome from different sides. This thoughtful layout encourages movement and interaction among visitors and residents. Large glass doors and windows, along with a skylight, allow natural light to fill the interior, making the space bright and inviting. This design choice helps to create a connection between the indoor environment and the outdoors.

Functional Elements

On the eastern side, the design includes essential services such as three dry toilet cabins and a functional kitchen, which are discreetly positioned behind a partition. This arrangement provides direct access to outdoor terraces. These terraces serve as additional gathering spaces, promoting social interaction while respecting the natural features of the site.

The Zome's architecture works in harmony with its surroundings, creating a welcoming space that encourages community and interaction. It reflects a thoughtful approach to design where the building and its landscape enhance the overall experience of communal living.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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