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Black-Coated Portable Restrooms with Recycled Cotton Sound Insulation

Author:
Mariwenn Lefebvre
Black-Coated Portable Restrooms with Recycled Cotton Sound Insulation
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With a black-coated facade that invites artistic expression and sound insulation crafted from recycled cotton, the design reimagines portable restrooms as a multifunctional urban space within Berlin's vibrant techno scene.
5 key facts about this project
01
Four portable toilets are creatively reconfigured to serve as a multifunctional space.
02
The design features a black coating, aligning with Berlin’s underground aesthetic.
03
Sound insulation is achieved through boards made from recycled cotton.
04
Two doors enhance ventilation and circulation for user comfort.
05
The structure invites street artists, providing a canvas for creative expression.

The PORTA PARTY project presents an inventive rethinking of portable toilets within the lively context of Berlin's techno scene. Located in an urban area rich with cultural influences, the design emphasizes recycling and adaptability. Four portable restroom units are combined to create a multifunctional space that serves both practical needs and offers a platform for artistic expression.

Design Concept
The design incorporates two doors to improve ventilation and accessibility for users. An additional roof element provides extra airflow while indicating that these units serve a purpose beyond their traditional role. This configuration encourages exploration and interaction, reflecting the vibrant spirit of the surrounding environment.

Visual Identity
A black coating covers the exterior, aligning with the aesthetic trends of Berlin’s underground culture. This choice not only hides the functional aspects of the toilets but also offers a blank surface for street artists, inviting spontaneous artistic contributions that enrich the urban fabric.

Sound Management
To manage noise levels, the design includes sound insulation made from recycled cotton. This choice supports environmental sustainability while enhancing comfort for users inside the installation, ensuring a more pleasant experience amid the bustling city.

Lighting Solutions
The project integrates a lighting system that adapts to the atmosphere of nightlife and social gatherings in Berlin. This consideration ensures the space is inviting at any time, fostering a lively environment for both residents and visitors.

The PORTA PARTY concludes with a thoughtful design that balances utility with the potential for artistic engagement, marked by its creative approach to everyday urban features.

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MICROHOME 2026
MICROHOME 2026
100,000 € Prize Fund / Kingpsan Edition #11
The Next House: USA
The Next House: USA
20,000 USD Prize
Buildner's Unbuilt Award 2026
Buildner's Unbuilt Award 2026
100,000€ Prize / 2026

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

`
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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