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Hexagonal Cabins With Geothermal Systems and Rainwater Harvesting Crafted From Local Materials

Authors:
Weronika Kogut, Julia Kosa
Hexagonal Cabins With Geothermal Systems and Rainwater Harvesting Crafted From Local Materials

Project in-detail

Hexagonal cabins constructed from local materials incorporate renewable wind and geothermal systems while utilizing rainwater harvesting, providing sustainable lodging for trekkers in the Icelandic landscape.
5 key facts about this project
01
Hexagonal design allows flexibility for site-specific adaptations.
02
Incorporates both wind turbines and geothermal systems for energy efficiency.
03
Rainwater harvesting system integrated into the roofing structure.
04
Exterior finished with charred wooden shingles for durability and aesthetic appeal.
05
Modular construction facilitates quick assembly and disassembly on-site.

### Project Overview
The GRIMS project involves the design and construction of trekking cabins within Iceland's unique landscape. The intent is to create structures that maintain a harmonious relationship with their environment, promoting ecologically sustainable practices while delivering functional and comfortable accommodations for trekkers.

### Spatial Strategy
The design features hexagonal modules that enable adaptability to varying elevations and terrain configurations, allowing each cabin to respond intelligently to its specific site. By drawing geometrical inspiration from the surrounding Icelandic landscape, the layout mimics natural contours, forging a connection between architecture and nature. Interior spaces are thoughtfully arranged to provide both communal and private areas, ensuring that occupants can engage with the landscape through large windows that frame expansive views.

### Material Selection
Attention to materiality underlines the project's commitment to sustainability and environmental integration. Glass is employed for the exterior skin, enhancing natural light and blending with the surroundings. Concrete provides durability and structural stability, while wooden panels are included in the interiors to evoke warmth and comfort. Steel is strategically used for structural integrity, allowing for creative geometric variations in the design. This careful selection of materials not only responds to environmental cues but also fosters an inviting atmosphere within the cabins.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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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.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

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