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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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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

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Final registration deadline 25 September 2025

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