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Conical Structure Featuring Burnt Wood and Integrated Greenhouse Functions

Authors:
Jola Wagener, Lisa-marie Sarré, Alina Gafka, Saskia Timisela
Conical Structure Featuring Burnt Wood and Integrated Greenhouse Functions
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A conical structure crafted from burnt wood integrates an adjacent greenhouse to support local food production while providing a unique dining experience near Iceland’s Hverfjall volcano.
5 key facts about this project
01
Conical shape enhances natural light and views of the surrounding landscape.
02
Burnt wood facade integrates aesthetics with regional weather durability.
03
Adjacent greenhouse supports local plant cultivation and dining experience.
04
Geothermal energy source reduces environmental impact and operational costs.
05
Unique water feature creates a tranquil atmosphere in the outdoor area.

The design project located near Hverfjall volcano and Mývatn Nature Baths features a conical structure that blends harmoniously into its natural surroundings. It serves two primary functions: a greenhouse and a restaurant. This design promotes sustainable practices while emphasizing the connection between food production and dining. The overall concept highlights the relationship of the building to the landscape, enhancing both its visual appeal and the experience of those who visit.

Site Integration

The conical shape is carefully aligned with the surrounding topography and reflects the mountainous landscape. This form captures natural light efficiently and creates a smooth transition between the indoor and outdoor spaces. Visitors are drawn into the experience of nature, with the design guiding them from the environment into the building.

Functional Connectivity

Combining the greenhouse and restaurant under one roof allows for effective operation of both areas. The restaurant is positioned at the wider base of the cone, which overlaps slightly with the greenhouse. This overlap reduces shading and ensures that plants receive enough sunlight for growth. As guests walk through the greenhouse along a stone path, they have a direct connection to the food that will be served in the restaurant.

Accessibility and Movement

Accessibility is a key aspect of the design, with clearly marked entrances and an elevator to cater to all visitors. A grand staircase connects the greenhouse with the dining area, creating a visual link between these spaces. The parking area is designed to accommodate various vehicles, providing convenience without compromising the natural beauty of the site.

Sustainable Practices

Geothermal energy from nearby fields provides the building’s main energy source, supporting efficient heating and operations. A rainwater catchment system adds to sustainability, helping the facility gather water for use. The design also incorporates greenery on the lower roof, reducing environmental impact and supporting diverse plant life through separate climate zones within the greenhouse.

The use of burnt wood for the facade creates a tactile link to the landscape. Inside, warm materials reflect the region's natural characteristics. Attention to detail throughout fosters an atmosphere that resonates with the surrounding environment. The conical structure rises gently from the ground, inviting visitors to engage with nature while enjoying their experience.

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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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