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Hexagonal Structures Made From Recycled Plastics Blending With Natural Wood in Sustainable Coastal Living

Authors:
Gunju Jenny Kim, Jiwon Kim
Hexagonal Structures Made From Recycled Plastics Blending With Natural Wood in Sustainable Coastal Living

Project in-detail

Crafted from modular hexagonal components and incorporating recycled plastics alongside natural wood, this coastal dwelling offers a sustainable solution for resilient living in vulnerable marine environments.
5 key facts about this project
01
Hexagonal design allows for flexible configurations and efficient use of space.
02
Constructed with recycled plastics for enhanced durability and environmental responsibility.
03
Integrated vertical farming systems support local food production within the dwelling.
04
Passive ventilation and cooling strategies minimize reliance on mechanical systems.
05
Floating community layout encourages social interactions while preserving individual privacy.

### Project Overview

H2O: HEX HOUSE OCEANIA is designed to address climate change and rising sea levels through its sustainable housing concept located in coastal ecosystems. This architectural solution prioritizes environmental resilience and self-sufficiency, enabling communities to adapt to oceanic habitats while engaging with pressing ecological challenges.

### Spatial Organization and User Interaction

The HEX HOUSE employs a modular, hexagonal layout that accommodates autonomous living while fostering connections among residents. Each unit is designed to optimize privacy and personal space, while communal areas within the broader floating community encourage social interaction. The compact interior, approximately 25 square meters, effectively integrates essential spaces such as kitchens, dining areas, and living quarters, promoting multifunctionality through adaptable furnishings, including foldable beds and expandable tables. This design strategy ensures residents can utilize the space efficiently while maintaining privacy and a sense of community.

### Sustainable Technologies and Materials

Key technological features within the HEX HOUSE enhance its ecological footprint. Solar panels on rooftops generate renewable energy, while vertical farming systems allow residents to cultivate food onsite, reducing transportation needs and enhancing food security. Advanced water conservation systems, including rainwater harvesting and desalination, ensure access to clean water. The use of sustainable materials, such as recycled plastics for structural elements, reinforced concrete for durability, and large glass windows for natural lighting, contributes to energy efficiency and responsiveness to the local environment. This combination of design elements serves both functional and aesthetic purposes, aligning with contemporary sustainability goals.

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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

Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
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MICROHOME
100,000 € Prize Fund / Kingpsan Edition #10
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