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Hempcrete Walls and Reclaimed Wood in a Compact Hexagonal Structure

Authors:
Kajetan Czudec, Anna Piątek, Anna Kieloch
Hempcrete Walls and Reclaimed Wood in a Compact Hexagonal Structure

Project in-detail

Constructed with hempcrete walls and reclaimed wood, the compact hexagonal structure addresses energy efficiency while providing a versatile housing solution.
5 key facts about this project
01
Built with a central pillar housing essential utilities for efficient space management.
02
Hexagonal design maximizes structural stability while minimizing material use.
03
Incorporates reclaimed wood for aesthetic and environmental sustainability.
04
Cork siding enhances thermal and acoustic insulation without deforestation impact.
05
Designed to withstand extreme weather conditions, addressing climate resilience.

The SNAILHOUSE is a thoughtful response to the need for sustainable housing. It is designed to provide an efficient living solution, inspired by the shape of a snail shell. Situated in an unnamed environmental setting, the house aims to address modern challenges in energy efficiency and resource management. The overall design concept prioritizes a compact form that promotes stability while minimizing the use of materials.

Geometric Form

The shape of the SNAILHOUSE is hexagonal, a form that appears frequently in nature. Similar patterns can be found in beehives and mineral crystals. This arrangement helps to ensure structural stability and reduces the surface area of the building. By doing so, it decreases material needs and lowers energy costs for heating and cooling. The focus on optimally using space makes it a practical choice for energy-efficient living.

Structural Integration

A central pillar is a key feature of the SNAILHOUSE. It houses important systems for water, sewage, and ventilation. This central element not only supports the structure but also simplifies construction and maintenance. The hexagonal design allows for various layouts, accommodating different living arrangements. Homes can be placed in a loose formation, lined up in rows, or grouped together, providing flexibility in how they are constructed and used.

Material Choices

The materials selected for the SNAILHOUSE reflect a commitment to sustainability. Reclaimed wooden planks give the structure a rustic feel while reducing waste by using existing materials. Cork is used for interior siding, providing effective insulation without compromising forest resources. Plywood serves as the main framework, offering durability with low carbon impact. Walls made of hempcrete are known for their insulation properties, and they can be constructed in blocks or applied as a spray. Each of these material choices supports resource-efficient building practices.

Environmental Resilience

Adaptation to climate change is a significant concern for the SNAILHOUSE. The design considers the effects of extreme weather and seeks to withstand potential disasters. By focusing on a compact and sturdy form, it is equipped to handle challenging conditions. The project illustrates a progressive approach to housing, addressing ecological concerns alongside the realities of changing environments.

The link between natural forms and functional living spaces is evident in the SNAILHOUSE. It reflects an intention to create harmony between built environments and nature, aiming to connect both in a practical and meaningful way.

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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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