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Natural Plaster and Earth Integration Define a Self-Sufficient Microhome Retreat

Natural Plaster and Earth Integration Define a Self-Sufficient Microhome Retreat
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Constructed with rammed earth and stabilized soil blocks, this compact microhome integrates a circular courtyard and passive design principles to create a self-sufficient living space in Prince Albert, South Africa.
5 key facts about this project
01
Constructed with locally sourced rammed earth and stabilized soil for enhanced thermal performance.
02
Features a circular courtyard that maximizes natural light and promotes privacy.
03
Partially submerged design utilizes geothermal properties for natural temperature regulation.
04
Incorporates rainwater harvesting and mechanical systems for sustainable resource management.
05
Minimal footprint of 25 square meters supports a self-sufficient lifestyle in a compact setting.

### Overview
Located in Prince Albert, Western Cape, South Africa, "The Mound" is an architectural project that seeks to align with the local environment while addressing contemporary sustainability challenges through minimalistic design. The microhome concept is inspired by the efficiency of termite mounds, providing a self-sufficient retreat that promotes mindfulness and a connection to nature.

### Spatial Configuration
The design encompasses a compact footprint of 25 square meters, integrating essential living functions—sleeping, cooking, and leisure—within a cohesive layout. The circular courtyard serves as the core of the residence, enhancing visual and physical connectivity while maintaining privacy and offering a tranquil outdoor space. A spiral internal configuration aids circulation, featuring a mezzanine sleeping area that maximizes verticality, and an open-plan kitchen and living area designed for multifunctionality and social interaction.

### Material Selection and Sustainability
The use of sustainable materials is central to this project, incorporating adobe bricks for thermal insulation, rammed earth as a load-bearing element, and stabilized soil blocks for enhanced durability. Natural plaster finishes contribute to a breathable living environment. The building is partially submerged, promoting thermal stability and environmental harmony. Additionally, functional systems include rainwater harvesting for effective water management, mechanical heating that utilizes earth warmth, and wind harnessing elements to facilitate natural cooling, underscoring a commitment to ecological sustainability.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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