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Natural Insulation and Local Aggregate Enhance Underground Visitor Center Experience

Author:
Tyler Harris
Natural Insulation and Local Aggregate Enhance Underground Visitor Center Experience

Project in-detail

Earth-sheltered construction utilizing local aggregate and birch finishes creates a seamless connection to the geothermal landscape, offering visitors an educational and immersive experience in a thoughtfully designed center.
5 key facts about this project
01
Earth-sheltered design minimizes visual impact while enhancing thermal performance.
02
Local aggregate utilized in concrete reinforces sustainability and regional context.
03
Interior finishes feature birch wood, providing warmth and a connection to the landscape.
04
Strategically placed skylights enhance natural lighting and showcase panoramic views.
05
Interconnected courtyards foster outdoor interaction and engagement with nature.

The project titled "Beneath Grjótagjá" represents an architectural endeavor focused on integrating a visitor center with the distinctive geological features of Grjótagjá caves in northern Iceland. This design emphasizes sustainability and engages with the natural landscape while providing essential facilities for visitors. The center not only serves as a point of information and relaxation for tourists but also interacts with the geological and cultural context of the area. By placing the building partially underground, it minimizes visual disruption and highlights the site's natural beauty.

Sustainable Design Approaches

The architectural design employs earth-sheltered techniques, enabling the structure to blend into the landscape seamlessly. The primary use of concrete as the structural element ensures durability, while the incorporation of locally sourced aggregate for the concrete mix further emphasizes the project's commitment to sustainability. The choice of timber, particularly birch wood, for interior finishes adds a layer of warmth that contrasts the raw concrete, contributing to a balanced material palette. Large glass components in the design facilitate natural lighting and provide scenic views, allowing visitors to experience the geothermal landscape from within the building.

Functional Layout and Interaction

The layout of "Beneath Grjótagjá" comprises two interconnected buildings complemented by outdoor courtyards. This arrangement creates a dynamic flow, encouraging exploration and interaction with both the built environment and the surrounding natural features. Key functional areas include a visitor center designed for education about the geological significance of Grjótagjá and a cafe that maximizes views of the outside landscape. The use of multiple levels helps create an experience akin to traversing the natural terrain, establishing a connection between the visitor's journey through the site and the geological history of the caves.

Overall, the project exemplifies thoughtful design that prioritizes ecological impact and visitor engagement. To explore the architectural plans, sections, and designs further, visit the project presentation for more detailed insights into this innovative architectural approach.

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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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