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Rammed Earth Vaults Embracing Mountain Topology in a High-Altitude Retreat

Author:
Tomomi Kito
Rammed Earth Vaults Embracing Mountain Topology in a High-Altitude Retreat
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Rammed earth vaults seamlessly blend with the rugged mountain topology to create a sustainable retreat that serves as a refuge for visitors in a high-altitude environment.
5 key facts about this project
01
Rammed earth vaults provide high thermal mass, enhancing energy efficiency.
02
Expansive glass openings maximize natural light and mountain views.
03
Rainwater harvesting system integrated into the structure supports sustainability.
04
Local materials reflect the surrounding environment and cultural context.
05
Flexible interior spaces can accommodate diverse visitor needs and activities.

### Overview

Located in high-altitude regions, the project "Summits" is designed to harmonize with the rugged landscape and traditional architectural practices of the Himalayan environment. The structure provides a functional and comfortable space for visitors and climbers while prioritizing sustainability and ecological integrity. By integrating innovative design with a respect for its natural context, "Summits" creates a dialogue between contemporary architecture and the surrounding terrain.

### Material and Structural Strategy

The architectural language of "Summits" draws on the visual characteristics of mountain formations, employing a series of curved, vault-like structures that enhance both form and function. The exterior features segmented arches that mimic the mountain silhouettes, constructed from locally sourced materials suitable for high-altitude conditions. Key materials include rammed earth, which offers thermal mass and insulation, and lime, which provides durability. The use of lightweight chalk and gravel enhances structural stability, while wooden finishes and expansive glass openings in the interior foster a warm atmosphere and a direct connection to the landscape. This careful selection of materials not only supports performance but also reinforces the project's intent to align with and reflect the surrounding nature.

### Sustainability Measures

The design embodies a commitment to sustainability through its energy-efficient strategies and water management systems. Solar panels are proposed for harnessing renewable energy, complemented by thermal insulation derived from rammed earth to minimize heat loss. Additionally, an integrated rainwater harvesting system ensures responsible water management in delicate high-altitude ecosystems. The structure is designed to be recyclable, highlighting an innovative approach to waste reduction and the ethos of reconnecting with the earth. This architectural endeavor exemplifies how traditional construction methods can be merged with contemporary sustainability practices, addressing both environmental and human needs within challenging terrains.

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MICROHOME 2026
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100,000 € Prize Fund / Kingpsan Edition #11
The Next House: USA
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20,000 USD Prize
Buildner's Unbuilt Award 2026
Buildner's Unbuilt Award 2026
100,000€ Prize / 2026

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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