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Rooftop Walks Amid Lava Rock Formations with Timber Integration

Authors:
Dinullah Bayu Ibrahim, Amyra Marlia, Winda Hutami Tatyana, Hani Ramadhani
Rooftop Walks Amid Lava Rock Formations with Timber Integration
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Elevated walkways weave through a structure defined by timber and lava rock, inviting visitors to engage with the unique geology of the Dimmuborgir Black Lava Field in a thoughtfully designed visitor center.
5 key facts about this project
01
Rooftop walkway provides panoramic views of the Dimmuborgir landscape.
02
Arched structure enhances accessibility and visual connections.
03
Construction uses timber and unfinished concrete to blend with the environment.
04
Interior spaces designed for interaction with natural lighting.
05
Lava rock walls echo the geological features of the surrounding area.

The Dimmuborgir Visitor Center is located in the unique landscape of the Dimmuborgir Black Lava Field in Iceland. The center’s purpose is to enhance the experience of visitors while connecting them to nature. The overall design aims to blend the indoor environment with the natural terrain, creating a space that invites exploration and appreciation of the surrounding geological features.

Architectural Concept

The design takes cues from traditional Icelandic Turf Houses, featuring a slanted roof that echoes the shapes of the natural landscape. This roof connects the building to its surroundings and makes efficient use of space beneath it. One notable element is the rooftop walkway, which allows visitors to enjoy elevated views of the lava formations, encouraging interaction with the landscape.

Spatial Organization

The layout inside the center uses a series of arches and distinct layers that contribute to both structure and function. These arches serve to create openings while guiding visitors through different areas. The carefully designed flow encourages movement and exploration, linking various vantage points where guests can admire the unique geology both from inside and outside the building.

Material Palette

Materials chosen for the visitor center play an important role in connecting the building to its environment. The exterior features timber and an unfinished concrete façade, which mimic the textures found in the volcanic landscape. Additionally, wood-cast concrete and lava rock walls are incorporated to enhance the design’s relationship with nature, making the building feel part of the site.

Amenities within the visitor center include an information center, exhibition rooms, a souvenir shop, a café, and a playground for children. Each area is thoughtfully designed to ensure functionality while maintaining a visual link to the external landscape. The use of natural materials throughout adds to the tactile experience, grounding the structure within the volcanic scenery, and inviting visitors to engage with the beauty of the surrounding environment.

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MICROHOME 2026
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The Next House: USA
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20,000 USD Prize
Buildner's Unbuilt Award 2026
Buildner's Unbuilt Award 2026
100,000€ Prize / 2026

The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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Design the next suburban home for the USA

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