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Cork Interior and HPL Facade in a Compact Rotating Microhome

Authors:
Merjema Zubača, Naida Čelić
Cork Interior and HPL Facade in a Compact Rotating Microhome
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A compact microhome with a rotatable structure utilizes a cork interior and HPL facade, offering flexible living spaces while promoting sustainability through a rainwater collection system and a waterless toilet.
5 key facts about this project
01
Rotatable module allows for flexible living configurations.
02
Cork interior enhances acoustics and insulation.
03
Rainwater collection system supports sustainable water use.
04
HPL facade provides durability with a contemporary finish.
05
Waterless toilet converts waste into usable plant fertilizer.

The ORBIS microhousing project is a modern solution to urban living challenges, designed for a world where housing costs are increasingly high and environmental concerns are pressing. Positioned within this context, ORBIS aims to provide an affordable option for homeownership, while promoting sustainable living. The overall design concept focuses on maximizing space and enhancing user experience through adaptability and functionality.

Design Configuration

The structure features a dual-component design that balances usability and form. The stationary section serves as the core of the unit, containing vital systems such as electrical wiring, plumbing, and fixed installations including the kitchen and bathroom. This foundational area ensures that daily functions operate smoothly. The rotatable part of the design is where flexibility comes into play. It contains spaces that can be used for sleeping, working, or relaxation. Users can easily change the layout by rotating the module, allowing them to respond to their individual living requirements.

Mechanical Mechanics

An essential aspect of the ORBIS design is its mechanical system that allows the living module to rotate. The box is mounted on a set of wheels within an inner race, linked to a central gear. This setup simplifies the rotation process, enabling users to turn the structure by using a helm located in the storage area. This hands-on approach encourages physical interaction with the space and facilitates adjustments based on different activities throughout the day.

Material Selection

Materials for the ORBIS project are selected with care, emphasizing sustainability. The structure mainly uses recycled wood, which helps reduce waste and environmental impact. The facade is made of high-pressure laminate (HPL) recycled wood plates, adding durability. Inside, cork material is used in the rotatable section, known for its lightweight qualities and eco-friendliness. These choices contribute to both the resilience of the design and the comfort of the living space.

Sustainability Features

Sustainability is deeply integrated into the design of ORBIS. The project includes a rainwater collection system to capture water for household use, along with solar panels that provide a source of renewable energy. Additionally, a nano membrane toilet operates without water, converting human waste into a usable resource for fertilizing plants. These features illustrate a commitment to off-grid living that can benefit both individuals and the surrounding environment.

A thoughtful consideration in the project is the waterproof roof that covers the rotatable module. This design element not only protects against various weather conditions but also enhances the overall practicality and user experience of the space, reinforcing the concept of adaptable living.

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

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Competition organisers

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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