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Geothermal Visitor Center Crafted with ETFE Film and Volcanic Context

Authors:
Shun Nakakura, Mika Ueda, Wang Yiyi
Geothermal Visitor Center Crafted with ETFE Film and Volcanic Context

Project in-detail

Crafted with ETFE film and designed to coexist with its volcanic surroundings, the visitor center harnesses geothermal energy to provide a unique space for exploration and engagement with Iceland's dramatic landscapes.
5 key facts about this project
01
Crafted from ETFE film, allowing for natural light diffusion and adaptability.
02
Integrates local geothermal energy for sustainable operation and reduced environmental impact.
03
Features a rooftop observation terrace designed to reference natural fumaroles in the region.
04
Designed with a Black Box core to symbolize the local black lava landscape.
05
Encourages diverse visitor experiences, accommodating both focused and free exploration.

The Black Lava Fields Visitor Center is located in the rugged landscape of Iceland, adjacent to Lake Mývatn and Hverfjall. It serves as a space for visitors exploring the volcanic terrain. The design reflects a thoughtful approach to human interaction with nature. Composed of two key elements—the Black Box and the White Surface—the center enhances the visitor experience while respecting the unique characteristics of the site.

Architecture Concept

The Black Box serves as the main functional area. It is a solid structure that houses essential visitor services. Its geometric shape draws from the local black lava, creating a strong connection to the surrounding landscape. In contrast, the White Surface wraps around the Black Box, forming a flexible space that encourages exploration and interaction. This design highlights the different ways visitors can engage with the center, whether they come with a specific purpose or a desire to wander.

Sustainability and Energy Use

A key aspect of the design is its use of local geothermal energy. This energy source powers the entire center, providing electricity and hot water. By relying on geothermal resources, the visitor center supports sustainability and reduces its environmental impact. This approach connects the operation of the building to the natural surroundings and reflects a commitment to responsible practices.

Visitor Experience and Engagement

The layout facilitates easy movement for everyone, including staff and visitors. The rooftop observation terrace offers expansive views of the landscape and features openings that reference the region's natural fumaroles. As visitors move to the terrace, they gradually reveal panoramic vistas, enhancing their connection to the site. This thoughtful design encourages visitors to engage with their surroundings in a meaningful way.

Materiality and Construction

The White Surface is made from ETFE film, a lightweight and durable material. This choice allows for adaptability and ease of maintenance while promoting natural light inside the building. The translucency of the ETFE film creates a changing atmosphere that connects visitors to the environment. Careful material selection contributes to a structure that performs well and complements the volcanic landscape.

The design includes openings that frame views of the stunning vistas, highlighting the careful consideration of sightlines and the relationship between the interior and the natural scenery.

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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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