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Hollow Towers and Geothermal Energy in a Sustainable Food Sanctuary

Authors:
Oswaldo Escobar, Ruben Guzman, Andres Tavera
Hollow Towers and Geothermal Energy in a Sustainable Food Sanctuary
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Utilizing hollow plastic towers for efficient crop production and powered by geothermal energy, the structure integrates sustainable practices with a restaurant experience focused on educating diners about food origins.
5 key facts about this project
01
Utilizes hollow plastic towers for crop growth.
02
Integrates geothermal energy for operational efficiency.
03
Features extensive greenhouse spaces showcasing edible plants.
04
Includes educational areas to teach sustainable practices.
05
Offers panoramic views of Mývatn lakes from the dining area.

The Tropicarium Light House is an innovative space that blends dining with agricultural production. Situated near Mývatn lakes, the design offers a functional setting for both food cultivation and eating. It aims to create a closer connection between diners and the processes that bring food to their plates. By using fish metabolic residues as nutrients for plants, the Tropicarium ensures fresh, organic produce throughout the year without relying on pesticides.

Architectural Concept

The architectural idea focuses on combining aquaculture and agriculture to support one another. By showcasing how food is grown, the design enhances the dining experience while educating visitors about sustainable practices. This environment encourages people to think about where their food comes from and the importance of food production methods.

Functional Layout

The restaurant consists of five modular areas, each designed for different experiences. They are arranged to provide views of the productive gardens and the nearby lakes. This design promotes interaction with the surrounding landscape and invites diners to engage with the site. The layout also supports educational initiatives, explaining the various supply chains involved in food production.

Sustainable Features

Sustainability plays a key role in the overall design. The project features extensive greenhouses that display a variety of edible plants, blending aesthetic appeal with practical function. Geothermal energy systems are used to reduce environmental impact, while the basement is dedicated to essential logistical needs. Together, these elements reinforce a commitment to sustainability throughout the space.

Innovative Agricultural Systems

A modular system using hollow plastic towers for crops enhances efficiency in food production. This design reduces water usage while allowing for rapid growth and multiple harvests each year. The careful arrangement of these agricultural systems supports a steady supply of produce, making the project both productive and resource-conscious.

The greenhouse's geometric forms rise above the landscape, reflecting sunlight during the day and emitting a warm glow at night. This interplay between light and structure creates a harmonious connection between the built environment and its natural surroundings.

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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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