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Buoyant Living Spaces Constructed with EPS Floaters and Energy-Efficient Solar Integration

Buoyant Living Spaces Constructed with EPS Floaters and Energy-Efficient Solar Integration
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Constructed with buoyant EPS floaters and integrated solar technology, this mobile living solution offers a sustainable and versatile lifestyle for adaptable urban environments.
5 key facts about this project
01
Constructed with lightweight Kingspan QuadCore panels for enhanced mobility.
02
Utilizes dual floaters made of solid EPS for buoyancy in water and stability on land.
03
Incorporates integrated solar panels for energy efficiency in various environments.
04
Features multi-functional interior design to maximize limited living space.
05
Designed for adaptable use across urban rooftops and natural landscapes.

## Overview and Conceptual Framework

Located in diverse environments ranging from urban centers to natural landscapes, the Traveler project introduces a sustainable mobile architecture concept through versatile tiny house designs. These units are engineered to facilitate a sustainable lifestyle while allowing for mobility across various geographical contexts, such as urban settings in London and New York, as well as tranquil locations like Banff National Park in Canada. By combining innovative design with ecological responsibility, the project addresses contemporary housing challenges.

## Iterative Design and Adaptability

The Traveler project is distinguished by three iterations, each tailored for specific environments. The **Traveler 1.0** design is situated above the Thames River in London, utilizing a zeppelin incorporating solar panels for energy. The **Traveler 2.0** is designed to float on an alpine lake, featuring dual floaters constructed from solid Expanded Polystyrene (EPS) and reinforced with a durable coating. Meanwhile, **Traveler 3.0** integrates into urban landscapes by occupying rooftop spaces, showcasing adaptability to varying terrains and urban settings.

## Material and Structural Innovations

The structural integrity of the Traveler units is achieved through the use of lightweight materials, including Kingspan insulated QuadCore panels and aluminum framing, providing robust support while remaining easy to transport. Energy efficiency is a priority, with solar panels facilitating energy neutrality and incorporated electric motors enhancing maneuverability. The interior layout prioritizes multifunctionality, with adaptable furniture and strategically positioned systems for wastewater management, batteries, and water tanks that optimize space and maintain stability. The industrial aesthetic, characterized by clear polycarbonate glazing and clean lines, fosters a direct connection with the surrounding environment while ensuring ample natural lighting.

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Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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