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Sunken Guesthouse Crafted with Basalt and Concrete for Enhanced Privacy

Authors:
Huei siang Wu, Ci Min Lun
Sunken Guesthouse Crafted with Basalt and Concrete for Enhanced Privacy

Project in-detail

Embedded into the earth, the guesthouse uses basalt and concrete to create a naturally heated retreat that prioritizes privacy and connection to the surrounding Icelandic landscape.
5 key facts about this project
01
Embedded design reduces energy consumption through natural heating.
02
Basalt stone façade connects the building with the Icelandic landscape.
03
Bedrooms are strategically lowered for enhanced privacy and views.
04
Open circulation promotes indoor-outdoor flow throughout the guesthouse.
05
Shared spaces encourage social interaction while maintaining personal areas.

The Iceland Thermal Springs Guesthouse is located near Lake Myvatn and the Hverfjall Volcano, fitting into the beautiful Icelandic landscape. Intended to provide a sustainable lodging experience, the design draws inspiration from traditional turf houses. It features a concept of embedding the structure into the earth, which allows for a natural heating system and lowers energy use while enhancing guest privacy.

Architectural Integration

The design features a sunken form that works with the land, reducing visual impact and creating a sense of retreat. By digging into the site, the guesthouse is partially below ground, offering close views of the surrounding area while staying protected from harsh weather. This method respects the environment and reflects the importance of historic Icelandic building techniques.

Spatial Organization

The layout breaks away from typical large buildings by including smaller rooms and shared spaces. This arrangement allows for varying degrees of privacy while encouraging social activities among guests. Key areas consist of the entrance, reception, dining room, living areas, and bedrooms with private balconies. Each space is designed to create smooth transitions from indoors to outdoors.

Material Selection

The materials used include basalt stone, fair-faced concrete, timber, and dark corrugated steel. These choices support a simple, rustic look that connects the building to its environment. Basalt stone is particularly important as it ties the structure to the unique geological features of Iceland and helps with energy efficiency through its thermal mass. This careful selection of materials creates a durable appearance that reflects the region's character.

Guestrooms are positioned lower in the structure, allowing nature to flow into the interior. Natural light enters from carefully placed openings, brightening the space while keeping the connection to the landscape alive. The design promotes a genuine experience, combining comfort and the beauty of the Icelandic setting.

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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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