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Biodegradable Structure Enhancing Biodiversity Through Rammed Earth and Hemp

Author:
Aris Kafantaris
Biodegradable Structure Enhancing Biodiversity Through Rammed Earth and Hemp

Project in-detail

Constructed from rammed earth and hemp, the biodegradable incubator fosters local biodiversity on Delos Island, transforming into a self-sustaining microhabitat for native flora.
5 key facts about this project
01
Constructed from environmentally sensitive rammed earth.
02
Incorporates lime-impregnated hemp rope for structural stability.
03
Utilizes a phased approach to enhance local biodiversity.
04
Acts as a temporary incubator for native plant species.
05
Transforms into a self-sustaining ecosystem over time.

The HEARTH Incubator is a thoughtful design located on Delos Island in the Cyclades archipelago of Greece. It is intended to address serious environmental issues, including desertification and the deterioration of local ecosystems. The focus is on creating a temporary, biodegradable structure that helps restore and support native plant life. The overall design seeks to form a microhabitat where biodiversity can thrive, offering shaded areas that encourage the growth of local flora.

Architectural Framework
The design features a series of rammed earth pillars, each strategically formed to maximize surface area. This allows them to have substantial thermal mass, effectively acting as heat sinks. The cooler, moister microclimates produced by the structure are critical for the germination of seeds. The pillars are arranged to enhance their ecological function, enabling them to contribute significantly to the restoration of the landscape.



Phased Development
The HEARTH Incubator is built around a clear three-phase strategy. In the first stage, it cools the ground beneath it, increasing moisture levels while providing essential shelter for local animals. This approach invites visitors to interact with the space, encouraging a better understanding of the environmental challenges the region faces.



Ecological Integration
As the second phase unfolds, the upper sections of the pavilion begin to release a mix of native shrub and grass seeds, a process supported by seasonal rains. This gradual release promotes the reestablishment of vegetation. The hemp rope used within the pillars helps maintain their stability, while it also becomes part of the ecosystem as it interacts with the surrounding environment.



Sustained Growth
In the final phase, the HEARTH Incubator becomes a self-sustaining green space. As the previously whitewashed bases of the pillars dissolve, a thriving ecosystem of slow-growing trees and shrubs takes shape. This change enriches the landscape and supports the formation of fertile soil, with the roots of the new plants reinforcing the ground, creating a lively habitat for various species.



Through careful structure and design, the project illustrates how architecture can enhance natural landscapes and contribute to ecological restoration. The end result is a space where nature and community can coexist and flourish.

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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
competition now

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