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Closed Water Cycle and Aquaponics Integration in Sustainable Green Spaces

Author:
Yi-ting Tsai
Closed Water Cycle and Aquaponics Integration in Sustainable Green Spaces
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Utilizing a closed water cycle and integrated aquaponics, the design enhances sustainability while offering a multifunctional living space that responds to the challenges of water scarcity in Taiwan.
5 key facts about this project
01
Closed water cycle design minimizes resource wastage.
02
Integrated aquaponics system supports local food production.
03
Fish ponds enhance aesthetic and functional aspects.
04
Flexible furniture storage adapts to various activities.
05
Semi-outdoor stairs improve accessibility and connection to nature.

The design centered around A-Kung-Tien Reservoir in Kaohsiung, Taiwan, addresses critical water management challenges in the area. With the reservoir's decreasing capacity and resulting local water shortage, the approach combines aquaponics with innovative water storage systems. This strategy reflects a commitment to sustainable practices, aiming to use resources efficiently while minimizing waste.

Design Concept
Functionality is a key aspect of the design. Semi-outdoor stairs provide direct access to the bedroom, enhancing movement throughout the space. On either side of the structure, fish ponds play a dual role, contributing both aesthetics and function to the aquaponics system. Ladders offer practical access during rainy days, showcasing adaptability in the design.

Spatial Functionality
Flexibility is emphasized through the organization of spaces. Easily stored furniture like lazy bones and desk chairs allows for a variety of uses in the living areas. This focus on functionality helps support different activities while keeping the environment organized, ultimately improving the usability of the space.

Sustainable Features
The roof design has multiple purposes. It serves as a rainwater collection area and a platform for solar panels, enhancing energy efficiency. This is vital for addressing the resource constraints of the region. The closed water cycle directs water from the collecting area through the roof, vegetable area, and water storage, showing a commitment to ecological balance by reducing resource wastage.

Integrative Layout
The overall layout is thoughtful and well-structured. It includes essential elements like vertical walls, vent windows, a hidden staircase, and a header tank. An aquarium adds another layer, blending aquatic ecosystems with the living space while also acting as a visual centerpiece that connects the interior to the surrounding natural environment.

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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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