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Rammed Earth Arches and Closed Cell Insulation in a Flexible Microhome

Authors:
Michael Lord, Kelly Bergin
Rammed Earth Arches and Closed Cell Insulation in a Flexible Microhome

Project in-detail

Embedded with rammed earth arches and integrated closed cell insulation, this flexible microhome redefines sustainable living by allowing for customizable design while promoting environmental harmony.
5 key facts about this project
01
Rammed earth arches provide both structural support and thermal insulation.
02
The design allows for easy addition or removal of modular components.
03
Closed cell insulation enhances performance across various climates.
04
Pre-fabrication on-site reduces transportation impact and construction time.
05
A dedicated outdoor deck extends the living area into nature.

The Arch System is a modular microhome kit that emphasizes sustainability and customization. It aims to provide users with the ability to tailor their living spaces to meet personal needs. The design combines elements of traditional architecture with modern methods. The result is a structure that communicates both functionality and aesthetic appeal.

Materials and Construction

Rammed earth arches form the backbone of the Arch System. These arches are made on-site using local resources, connecting the home to its environment. This method is not only durable but also enhances thermal performance—keeping interiors comfortable in various climates. The use of natural materials adds an earthy quality to the structure, grounding it in its landscape.

Modularity and Adaptability

The design features two main structural modules, which can be arranged in different ways. This modularity allows residents to adjust their living spaces based on preferences. Users can easily add or remove arches, promoting flexibility as their needs change over time. The modules are designed to fit standard furniture sizes, ensuring that the living environment remains practical and easy to navigate.

Hidden Systems and Functionality

Key systems such as the electric battery, water tank, and water heater are integrated beneath the wood flooring. This thoughtful approach reduces visual clutter and contributes to an organized interior. The wood flooring itself adds a touch of warmth. Together, these features create a cozy atmosphere that feels homely yet modern.

Outdoor Integration

A pre-fabricated deck extends the living space into the outdoors. This feature allows occupants to enjoy fresh air and natural light, creating a connection with the surrounding area. It encourages outdoor activities and provides additional space for relaxation. By blending indoor and outdoor living, the design enhances the overall quality of life for its residents.

The Arch System reflects a commitment to practical design and environmental responsibility. Its attention to detail—from the adaptive layout to the hidden operational systems—demonstrates a thoughtful understanding of contemporary housing needs. Each aspect contributes to a functional living space that remains inviting and connected to nature.

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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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