London Design Silver

2025

Oceanic City-States

Entrant

Jiming Bai, Yifan Zhang, Yifan Li, Tongtong Zhang

Category

Architectural Design - Sustainable Living / Green 

Client's Name

-

Country / Region

United States

Gallery

About The Entry

Oceanic City-States is a conceptual design proposal to transform decommissioned offshore oil rigs into sustainable offshore cities, addressing pressing environmental, economic, and social challenges. As global oil reserves are depleted, many offshore drilling platforms have been abandoned, leaving behind massive structures that pose environmental hazards and financial burdens. Decommissioning and dismantling these rigs require immense resources and can disrupt delicate marine ecosystems that have evolved around the platforms. This proposal envisions repurposing these abandoned oil rigs as self-sufficient micro-communities within larger offshore urban systems, providing innovative solutions to urban land scarcity, rising housing costs, and the lack of affordable living spaces.

Each converted oil rig would serve as a micro-community housing essential urban functions such as city halls, museums, libraries, and shopping centers. These communities would connect through advanced transportation networks to form a cohesive and functional offshore urban ecosystem. By integrating sustainable technologies, each city-state would achieve self-sufficiency and promote harmony with surrounding marine environments. Renewable energy sources, including solar panels, wind turbines, and tidal generators, would provide clean energy. Rainwater harvesting and seawater desalination systems would ensure a reliable water supply. Vertical farms, offshore pastures, and underwater fish farms would sustain food production while minimizing reliance on external resources. Waste recycling, composting, and wastewater treatment systems would complete the closed-loop ecosystem.

The Oceanic City-States aim to create zero-energy, zero-pollution communities that address current and future human habitat challenges. By fostering sustainable urban growth and reducing environmental impact, this concept reimagines offshore oil rigs as platforms for innovation and coexistence. These floating urban hubs represent a vision of living in harmony with nature while addressing the need for resilient, cost-effective, and eco-friendly housing solutions, paving the way for a sustainable future for both people and the planet.

Credits

Jiming Bai
Yifan Zhang
Yifan Li
Tongtong Zhang
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