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Sustainable Earth-Sheltered Design with Volcanic Ash and Natural Wood Integration

Authors:
Bjarke Jansen, Costanza Angeloni, Kleopatra Balatsouka
Sustainable Earth-Sheltered Design with Volcanic Ash and Natural Wood Integration

Project in-detail

Crafted with volcanic ash and local wood, this earth-sheltered facility embraces sustainability while fostering community engagement through diverse shared spaces and recreational opportunities.
5 key facts about this project
01
The facility incorporates 60% of its mass underground to minimize visual impact and blend with the natural landscape.
02
Volcanic ash is utilized not only for insulation but also as a key component in the building's sustainable materials strategy.
03
The design features green roofs that transform from recreational slopes in winter to gathering spaces in summer.
04
Local wood panels are sourced from regional suppliers, reinforcing a commitment to sustainability and community engagement.
05
Unique recreational zones include climbing walls and playgrounds integrated within the building's structure to promote active lifestyles.
The project known as "TheHUG" presents a thoughtful architectural response to its location in Iceland, drawing inspiration from traditional turf houses while emphasizing community and sustainability. It stands not only as a structural entity but also as a representation of Icelandic culture, seamlessly integrating itself into the unique landscape of the region. This architectural design prioritizes environmental considerations through its shape and materials, ensuring it aligns harmoniously with the surrounding topographical features.

TheHUG is primarily designed to serve as a multifunctional public facility, offering spaces for community engagement and interaction. The design seamlessly blends various functions within its six distinct levels, which include underground parking and storage facilities, community rooms, greenhouses, and areas dedicated to recreation and physical activity. This layered approach offers a diverse range of spaces that cater to different needs, promoting social connectivity and accessibility for all.

At the heart of the project is the commitment to creating a communal environment where residents can gather and share experiences. Areas within the building, such as the community room and the kids’ zone, are thoughtfully designed to encourage interaction among users of all ages. These spaces feature open layouts and flexible arrangements, enabling diverse activities and events to take place. The greenhouses are positioned to be inviting and accessible, fostering community involvement in local agriculture and encouraging awareness of sustainable practices.

A distinctive aspect of TheHUG is its extensive use of local materials, reinforcing both cultural identity and sustainable development principles. The choice of materials includes wood panels, volcanic ash, and reinforced concrete, all selected for their functional properties and low environmental impact. Wood elements, sourced from local providers, reflect the region's tradition of craftsmanship while contributing to the building's aesthetic warmth. Volcanic ash serves as an effective insulator, supporting energy efficiency within the structure, and further enhancing its sustainability profile.

The architectural design also emphasizes unique characteristics, such as the integration of green roofs that not only complement the building’s footprint but also allow for seasonal adaptations. These roofs provide recreational spaces in warmer months, transforming into slopes for skiing in winter, thereby encouraging year-round engagement with the environment. This adaptability illustrates a versatile design approach, where the architectural form evolves with seasonal changes, enriching the use of spaces throughout the year.

Another fundamental element of TheHUG’s design is its relationship with the environment. By positioning 60% of the building’s mass underground, the design minimizes disturbance to the natural landscape while maintaining a low visual profile. This approach not only respects the existing geography but also emphasizes the harmony between architecture and nature, creating a peaceful respite that blends with the surroundings.

The emphasis on sustainability extends beyond material choices and aesthetics. The project incorporates energy-efficient design strategies that prioritize resource conservation and community education regarding sustainability. By actively promoting ecological responsibilities and introducing features like a resource collection zone, TheHUG seeks to foster a culture of recycling and environmental mindfulness within the community.

The careful combination of architectural ideas, community-focused functionality, and environmental sensitivity culminates in a project that not only meets practical needs but also deeply resonates with its cultural context. TheHUG serves as a prototype for future projects aiming to achieve similar sustainability goals while fostering community connections. It is a testament to how thoughtful architectural design can forge stronger community ties while embracing and respecting the natural landscape.

For those interested in exploring the architectural plans, sections, and various designs of TheHUG, a closer look at the project presentation will provide valuable insights into the rich tapestry of ideas and functionalities embedded within this architectural endeavor. Exploring these elements will offer a deeper understanding of how architecture can effectively marry cultural heritage with modern design thinking.
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100,000€ Prize / 2025

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

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

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
Early bird registration deadline 22 May 2025
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