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Triangular Prism Retreat Emphasizing Thermal Excavation and Celestial Connections

Authors:
Talita Suelen Assunção, Ana Paula Pavelski Mello, Tiago José Aleixo, Arthur Ribas Souza
Triangular Prism Retreat Emphasizing Thermal Excavation and Celestial Connections
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A triangular prism form, partially embedded in the ground, utilizes thermal excavation and celestial openings to create a tranquil retreat for meditation and reflection.
5 key facts about this project
01
Triangular prism shape enhances both aesthetics and functionality.
02
Partially embedded design contributes to thermal stability.
03
Ceiling openings connect occupants to the cosmos.
04
Inspired by traditional Nordic architectural forms.
05
Focus on creating a tranquil environment for meditation.

The COSMOS project emphasizes the connection between people and the natural world. Set in a peaceful environment, it creates a space designed for meditation and reflection. The design is based on the idea that all living beings share a common bond at the atomic level, inviting occupants to be aware of their place in the universe. This concept shapes the architecture and informs its features throughout the space.

Excavation Strategy

An innovative excavation strategy is used to partially bury the house into the earth. This creates a stable environment while reducing the need for energy to heat or cool the space. By integrating the building into the landscape, it blends into its setting and minimizes disruption to the area. This approach highlights a respect for the natural environment.

Form and Structure

The building's form takes cues from traditional Nordic roofs, resulting in a triangular prism shape. This design stands out yet fits comfortably within the landscape. The roof extends down to the ground, allowing for effective use of light and creating a sense of shelter. This form also supports the internal organization of space, ensuring practicality and comfort.

Celestial Connection

The ceiling features openings that connect the interior with the sky. These openings let natural light pour into the space, creating a warm and inviting atmosphere. They also serve as a reminder of the cosmos, enriching the experience of being present in the building. This focus on light and connection encourages a sense of calm and contemplation.

The combination of these elements results in a design that promotes mindfulness and environmental awareness. The architecture encourages reflection and connection, making it a unique space for those who use it. Interaction with nature is a core aspect, making the experience of living and meditating in this setting feel meaningful.

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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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