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Basalt Flooring and Undulating Roof Form in a Visitor Experience Center

Author:
Maren Robertson
Basalt Flooring and Undulating Roof Form in a Visitor Experience Center

Project in-detail

With its undulating roof form reflecting the local geology and basalt flooring that links it to the surrounding environment, the center provides an immersive visitor experience at the geothermal caves of Grjótagjá.
5 key facts about this project
01
The visitor center's architecture is oriented to protect against prevailing winds while maximizing sunlight.
02
Local basalt is used for flooring, connecting the facility to its geological context.
03
The undulating roof design mirrors the natural forms of the surrounding landscape.
04
Large windows allow for panoramic views, enhancing the visitor experience.
05
A direct pathway leads visitors to the tower and caves, promoting engagement with the site.

The Observation Tower and Visitor Center at Grjótagjá is located in Iceland, close to the well-known geothermal caves of Grjótagjá. The facility enhances visitor experiences by providing a space for information, viewing, and interaction with the striking landscape. The design focuses on a strong connection with the environment, using forms that reflect the unique geological features of the site.

Design Concept

The focus of the design is on integrating the building with the landscape while ensuring it serves practical purposes for visitors. The visitor center has a low profile, positioned to shield against the winds coming from the northeast and northwest while maximizing exposure to sunlight and views from the southeast and southwest. The layout includes both open and enclosed spaces that allow for different visitor experiences, creating a varied journey through the site.

Visitor Pathways

Visitors enter the center and follow a central pathway that divides the building, guiding them toward the tower. This pathway is bordered by wooden columns, contributing to a sense of openness. A skylight above allows natural light to illuminate the interior, creating a warm atmosphere. The northern part of the visitor center includes support facilities, while the southern section opens up to substantial views, enhancing the visitor's connection to the surrounding nature.

Observation Tower

Rising two and a half stories, the Observation Tower features a roof that undulates, mimicking the contours of the nearby rocky landscape. The design contrasts closed panels along the stairway with large windows on three sides of each landing. This arrangement leads to a viewing platform that provides a complete panorama of the breathtaking environment, inviting people to engage with the landscape in a meaningful way.

Materiality and Details

Careful consideration of materials is evident throughout the design. Locally sourced basalt is used for flooring tiles, and timber features prominently in the structural components. These materials align with local building traditions and enhance the sensory experience of the site. The choices reflect a commitment to sustainability, ensuring that the project harmonizes with its surroundings.

The visitor center layout includes both indoor and outdoor spaces, with a deck providing direct access to pathways leading to the caves and the tower. This design encourages exploration and allows visitors to immerse themselves in the unique landscape of Iceland.

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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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