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Rammed Earth Guesthouse Embracing Nature with a Soothing Outdoor Bath

Authors:
Walter Hjaltested, Caterina Decker
Rammed Earth Guesthouse Embracing Nature with a Soothing Outdoor Bath
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Rammed earth walls define a guesthouse near Lake Mývatn, offering panoramic views and a communal outdoor bath amid a landscape of lush birch forests and volcanic formations.
5 key facts about this project
01
Rammed earth walls provide excellent insulation and thermal mass.
02
The design incorporates a central courtyard that encourages social interaction.
03
Panoramic views are prioritized in all guest apartments.
04
An outdoor bath serves as a focal point for cultural engagement.
05
The site utilizes local volcanic sand to align with its natural surroundings.

The guesthouse design near Lake Mývatn connects with its volcanic surroundings while providing functional living spaces. Located in a landscape characterized by moss-covered lava fields and birch forests, the architecture features a horizontal layout that blends into the terrain. The building is single-story, allowing for broad views while ensuring privacy for each occupant. The design captures a sense of calm and encourages community interaction, showcasing the natural beauty of its environment.

Design Concept

The central idea of the guesthouse revolves around a courtyard that acts as the gathering space. This area encourages social interactions among guests and includes spaces for relaxation, such as a hotpot that highlights the cultural importance of communal bathing in Iceland. Public areas are intentionally located around this courtyard, while private apartments are positioned to face the external landscape.

Spatial Organization

Each apartment is designed with an emphasis on comfort, incorporating storage, workspaces, private bathrooms, and bedrooms that feature scenic views. The community kitchen opens directly to the courtyard, fostering shared dining experiences. A long dining table invites guests to come together and enjoy meals. This arrangement creates a warm atmosphere while clearly differentiating between public areas and private retreats.

Materiality

The design draws from traditional building methods, particularly Icelandic turf houses. Rammed earth is notably used for the outer walls, enhancing thermal efficiency and stability. These thick walls are layered to optimize insulation. The roof is supported by reinforced concrete, providing a strong framework. Inside, the use of clay plaster for walls and rammed earth for flooring maintains a cohesive look and connects the interiors with the exterior landscape.

The outdoor bath is a highlight of the design, set among the serene natural surroundings. This feature adds to the visual charm of the courtyard and serves as a key spot for socializing, illustrating the blend of cultural tradition and contemporary design.

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

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Prize 100,000 € + Potential realisation
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Final registration deadline 25 September 2025

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