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Lenga Wood Shelter Supporting Biodiversity Recovery with Removable Core

Authors:
Catalina Sobarzo, Cristobal Rodriguez, Evelyn Novoa
Lenga Wood Shelter Supporting Biodiversity Recovery with Removable Core

Project in-detail

Constructed from lenga wood and equipped with a removable core, this micro housing unit facilitates ecological research while supporting biodiversity recovery in remote forested areas.
5 key facts about this project
01
Constructed with a dual-layer system that includes an intermediate space for ecological impact mitigation.
02
Utilizes ecological structural insulated panels that enhance thermal efficiency and space utilization.
03
The external layer of lenga wood decomposes naturally to support local vegetation and wildlife habitats.
04
Internal core is designed for easy removal and repurposing after each research campaign.
05
Facilitates self-sufficient operation with integrated clean energy systems, generating zero waste.

Sepal House is a micro housing unit built for ecological restoration in remote forest areas that face environmental harm. With a focus on supporting researchers, the structure aims to aid the recovery of biodiversity in regions impacted by pollution and other threats. The design concept centers on being modular and adaptable, allowing it to fit into the natural surroundings while keeping its environmental impact low.

Modular Design

The design consists of two layers that work together to create a functional space. The outer layer serves as a protective shell, while the inner core is constructed using ecological structural insulated panels. These panels provide effective space management and good insulation. The modular design allows for quick assembly in challenging locations, making it easier to set up in remote areas.

Sustainable Materials

For the external layer, lenga wood is chosen for its ability to blend with the surrounding environment. This material not only enhances the structure’s natural look but also supports ecology as it decays over time, allowing plants to grow back and giving animals a place to thrive. Using sustainable materials reflects a commitment to environmental care.

Functional Integration

Inside, clean energy systems are integrated into the core, enabling the unit to operate without creating waste. This aspect is essential for researchers, as it allows them to carry out their work even in isolated conditions. Additionally, the internal layer can be removed and reused for future projects, extending the life of materials and enhancing overall utility.

The design features an intermediate space between the two layers that acts as a cushion, reducing the impact on the environment. This thoughtful design element shows that human activity can coexist with nature, supporting essential research while respecting the ecosystem.

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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
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