Jerónimo “Momo” Weich, son of Julián Weich, has transitioned from urban life to pioneering regenerative bioconstruction in Los Hornillos, Córdoba. By utilizing traditional adobe techniques, recycled materials, and natural filtration systems like biopools, he is demonstrating a model for sustainable living that prioritizes ecosystem regeneration over mere conservation, according to an interview with La Nación.
The Shift from Sustainability to Regeneration
For Jerónimo Weich, the standard goal of sustainability is no longer sufficient. Speaking to La Nación in July 2025, he defined his work not by the footprint he leaves, but by the active improvement of his environment. “The paradigm I inhabit is not sustainability, but regeneration,” Weich stated. This approach focuses on collaborating with natural processes to accelerate environmental recovery rather than simply maintaining a neutral impact.
His architectural projects in the Traslasierra region rely on bioconstruction—a building method that uses local, natural materials such as mud and reclaimed wood. Weich describes the process as communal, often inviting neighbors to participate in the construction, which he notes mirrors historical traditions of collective building.
Natural Filtration: How Biopools Replace Chemical Systems
Beyond the structures themselves, Weich has implemented natural water management systems. His project, “Casa Pavoreal,” utilizes a biopool—a natural swimming area that functions without pumps or chemical filters. Instead, the water is purified through a balanced ecosystem of aquatic plants and wildlife.
According to Weich, the biological filter consists of various species such as water lilies, lotus flowers (nenúfares), and water hyacinths (camalotes). These plants, alongside small fish like mojarritas, maintain the water’s clarity and health. The fish serve a specific biological function, consuming mosquito larvae and keeping the ecosystem in balance. This zero-chemical approach represents a significant departure from traditional pool maintenance, which typically relies on chlorine or salt-based filtration systems.
Design Elements of Regenerative Homes
The visual and functional aspects of these homes emphasize a connection to the surrounding landscape. The structures are characterized by:
- Adobe and Recycled Wood: The primary structural components are sourced locally to minimize carbon transport.
- Artistic Claraboyas: Walls feature irregular glass skylights that provide natural illumination while creating unique artistic textures.
- Solar Integration: Energy needs are met through renewable sources, including solar-powered water heaters.
- Thermal Efficiency: Hermetic, wood-look aluminum frames provide insulation against the noise and cold of the mountain environment.
Frequently Asked Questions
What is the difference between sustainable and regenerative building?
Sustainability focuses on maintaining current conditions and minimizing harm. Regeneration, as practiced by Weich, focuses on actively improving the ecosystem and collaborating with nature to restore or enhance the environment.
How does a biopool stay clean without chemicals?
A biopool uses a combination of aquatic plants and small fish to filter water. The plants absorb excess nutrients, while the fish control insect populations, creating a self-sustaining ecosystem that requires no synthetic chemicals or mechanical pumps.
Is bioconstruction suitable for all climates?
Bioconstruction relies on local materials and site-specific design.
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