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Subterranean Dwelling Crafted from Rammed Earth and Glass Flooring in Arid Landscapes

Subterranean Dwelling Crafted from Rammed Earth and Glass Flooring in Arid Landscapes
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Nestled beneath the surface, the dwelling utilizes rammed earth and glass flooring to create a sustainable living environment that blends seamlessly with the desert landscape, optimizing energy efficiency and offering a novel approach to modern habitat in arid conditions.
5 key facts about this project
01
Utilizes rammed earth for superior thermal mass and energy efficiency.
02
Features a glass floor to connect interior spaces with the surrounding ecosystem.
03
Entry ramp channels rainwater into an integrated garden area for landscaping.
04
Incorporates a blackwater sewage system for sustainable waste management.
05
Designed to minimize visual impact on the desert landscape with a subterranean footprint.

### Overview

The Subterrarium is a residential design situated in the arid landscapes of the American Southwest. It serves as an exploration of sustainable living within a challenging climatic context, emphasizing integration with the natural environment. Designed as a micro-home that is partially buried, the structure utilizes a rammed earth framework to minimize ecological impact while addressing the local climate's demands. By being excavated four feet into the ground, the dwelling effectively maintains cooler temperatures during the extreme heat of summer and reduces its visibility in the landscape.

### Materiality and Structural Considerations

The design employs a range of materials that support both functionality and energy efficiency. Rammed earth serves as the primary structural element, providing significant thermal mass conducive to energy conservation. Corrugated steel roofing, a nod to the region's historical mining heritage, enhances durability. The inclusion of Kingspan Tek Structurally Insulated Panels (SIPs) ensures optimal insulation while being lightweight. Furthermore, the innovative glass flooring establishes a visual link with the ecosystem below without compromising privacy. Wood finishes provide warmth and complement the desert aesthetic.

### Environmental Strategies

The Subterrarium incorporates several sustainable strategies aimed at minimizing its environmental footprint. The unit layout, approximately 23 square meters (about 250 square feet), is optimized for natural light and ventilation through operable windows on the south and north facades. A series of deep eaves promote energy efficiency by providing shade while also addressing privacy needs. The design features a rainwater harvesting system that directs water into garden areas, creating micro-ecosystems and enhancing biodiversity. Additionally, an integrated blackwater sewage system processes waste sustainably, returning treated water to the environment.

This project exemplifies a commitment to ecological principles through its material choices and functional design, reflecting a harmonious coexistence with its surrounding landscape.

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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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Early bird registration deadline 19 November 2025

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