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Decentralized Core and Hexagonal Spaces Shaping Urban Functionality

Authors:
Hongwei Xi, Fan Wu, Hao Zhang, Zhihua Ma
Decentralized Core and Hexagonal Spaces Shaping Urban Functionality
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The decentralized core and innovative hexagonal forms create a versatile urban space that integrates natural elements, enabling a dynamic environment for both office and hospitality functions.
5 key facts about this project
01
Decentralized core design enhances spatial flexibility for multiple functions.
02
Hexagonal forms create dynamic interactions between interior and exterior spaces.
03
Integration of natural elements improves occupant well-being and comfort.
04
Multiple designated zones facilitate diverse user activities and interactions.
05
Strategic layout promotes a strong sense of community within the urban setting.

"Lighthouse — The Direction of the City" is located in the Lujiazui district of Shanghai, an important area known for its collection of tall buildings and business activity. The design takes inspiration from the idea of a lighthouse, serving as a guiding presence amid the complexities of urban life. Centered on multifunctionality, the building aims to meet the diverse needs of its users. It integrates various activities into one cohesive space, fostering interaction among individuals.

Design Concept
The concept brings together a metaphor of a lighthouse within the urban context. This is expressed through the use of hexagonal shapes that challenge traditional forms. By emphasizing layering and interwoven spaces, the design creates a rich and engaging environment. This distinct geometric approach serves not only to enhance visual appeal but also to ensure practical functionality.

Spatial Organization
The building includes several specific areas, such as a Sky Restaurant Floor, Hotel Floor, Office Floor, Lobby Floor, and an Indoor Office Space Close to Nature. Each of these zones is thoughtfully placed to allow movement and encourage interaction among the occupants. The layout supports a variety of activities while addressing the needs of different users. This organization promotes a sense of community, relevant to both work and leisure settings.

Core Decentralization
A key feature is the decentralized core tube, which adds flexibility to the building's design. This choice allows for a more adaptable space that can change with time. By moving the core away from the center, the design fosters a natural integration of various functional areas. This strategy aligns with the need for buildings to adjust to evolving urban environments and user requirements.

Geometric Interplay
The project's strength lies in the creative use of hexagonal forms, which enhance the overall experience. These shapes add visual interest and create a dialogue between the inside of the building and the outside world. The attention given to natural light and views connects the structure to its surroundings, promoting a comfortable environment for users.

Throughout the design, the focus on integrating natural elements indicates a desire to create spaces that enrich daily life. This approach enhances well-being while staying connected to the vibrancy of the urban setting.

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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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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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