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Aquatic-Plant Landscaping and Precast Structures Enhancing Sustainable Living

Authors:
Terrence Etienne, Carlos Teissonniere
Aquatic-Plant Landscaping and Precast Structures Enhancing Sustainable Living
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Sustainable water management through rainwater harvesting and integrated aquatic planting systems defines a collection of interconnected pavilions designed to foster community well-being in a natural setting.
5 key facts about this project
01
Sustainable rainwater harvesting system supports all water needs onsite.
02
Incorporation of eco-friendly incineration toilets reduces environmental impact.
03
Pavilions are strategically spaced to enhance natural light penetration.
04
Use of precast concrete allows for efficient and durable construction.
05
Integrated aquatic planting systems provide natural water filtration and beautification.

Karma - House of Voca is a thoughtful arrangement of pavilions, each serving a specific purpose, situated within a calm natural landscape. The design emphasizes a strong relationship with the environment, inviting occupants to engage closely with the space around them. By spacing out the pavilions to create voids that let in light and offer views of the outdoors, the design fosters an atmosphere of openness and tranquility.

SUSTAINABILITY AND SELF-SUFFICIENCY

The project integrates sustainable features that allow it to function with minimal outside input. Solar panels are positioned to capture sunlight and generate renewable energy. A rainwater harvesting system collects water from the roofs for reuse within the building. Taken together, these elements support a responsible approach to resource management.

CIRCULATION AND SPATIAL ARRANGEMENT

An open circulation spine connects the pavilions, making it easy for people to move from one space to another. This design enhances natural light and visual links between different areas, creating a sense of flow. The layout not only prioritizes movement but also contributes to the overall experience by encouraging interaction among spaces.

MATERIALITY AND AESTHETICS

The choice of materials is intentional, focusing on durability and integration with the natural surroundings. Precast concrete forms the main structure, providing strength and a simple, clean look. Wood is used for cladding the pavilions, adding warmth that harmonizes with the outdoor environment. Large glass windows and walls create visual connections between inside and outside, allowing natural light to fill the spaces.

The pavilions also incorporate eco-friendly incineration toilets that process waste by using high heat, eliminating the need for traditional septic systems. This practical innovation showcases the commitment to sustainability and efficient resource management throughout the design.

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Enter an open architecture
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Buildner's Unbuilt Award 2025
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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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