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Spherical Accommodations Crafted from Basalt and Timber Integrating Geothermal Features

Authors:
Ing-tse Chen, Yu Cheng Wu, Yi-hsuan Tu, Yaw-shyan Tsai
Spherical Accommodations Crafted from Basalt and Timber Integrating Geothermal Features
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Crafted from local basalt and timber, the design employs spherical forms to harmonize with the Icelandic landscape while incorporating geothermal features, providing flexible lodging options for visitors.
5 key facts about this project
01
Spherical units allow for reconfigurable living arrangements.
02
Local basalt stone facade integrates with the surrounding terrain.
03
Geothermal features provide sustainable heating and relaxation areas.
04
Phase change materials enhance thermal efficiency in guest accommodations.
05
The design draws inspiration from Norse mythology, particularly Yggdrasill.

## Overview

Mímisbrunnur is situated near Lake Mývatn in Iceland and focuses on the integration of natural elements within its architectural framework. The design emphasizes the interplay between the region's volcanic landscape and traditional Nordic aesthetics. Key components of the project include movable spherical units, referred to as "The Balls," and permanent structures such as The Rock and The Hills, all tailored to enhance the user experience in this unique geographical context.

## Spatial Strategy

The architectural approach prioritizes harmony with the surrounding environment, utilizing forms that resonate with the site's rolling hills and volcanic terrain. The spherical accommodations reflect the land's natural contours, while also drawing from Norse mythology—specifically the symbolism of Yggdrasill, the world tree—to articulate a connection with nature. The design includes flexible living spaces that adapt to the landscape, maximizing functionality while offering panoramic views and abundant natural light.

## Material and Sustainability

The project employs various materials that reinforce both aesthetic appeal and environmental responsibility. Locally sourced basalt stone serves as the primary cladding material for The Rock, establishing a visual and physical connection to the geological environment. Large segments of insulating glazing enhance light intake, while phase change materials (PCM) in the spherical units promote energy efficiency. The sustainability strategy leverages geothermal energy for heating, incorporates on-site waste treatment systems, and utilizes water management practices optimized for the region's natural springs. These strategies collectively ensure minimal environmental impact while fostering a sense of place and permanence.

Key architectural elements include the flexible living units, designed to accommodate varying guest needs, and permanent structures that facilitate community interaction through designated gathering spaces. The combination of innovative architectural forms with a dedication to sustainable practices defines the overall character of the project.

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Kingspan MICROHOME 2026: Building Less to Create More

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Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

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