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Corten Steel Structure with Transparent Facade Overlooking Natural Landscape

Authors:
Hanna Närhi, Anna Nymo, Kayin Dawoodi, Sofie Jönsson
Corten Steel Structure with Transparent Facade Overlooking Natural Landscape
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Constructed from Corten steel with a transparent facade, the observation tower provides an immersive vantage point that blends seamlessly into the surrounding landscape while inviting community engagement through its accessible viewing platforms.
5 key facts about this project
01
Constructed primarily with Corten steel for durability and weather resistance.
02
Features a transparent facade that enhances visibility of the surrounding landscape.
03
Incorporates multiple viewing platforms to foster community engagement and interaction.
04
Utilizes a concrete core for structural stability while minimizing material use.
05
Designed to blend with natural elements, enhancing the site’s environmental connection.

The Kurgi Observation Tower, known as "The BOX," is an architectural project designed to seamlessly integrate with its natural surroundings while providing an immersive observational experience. This structure is characterized by a modern aesthetic that emphasizes functional design and material efficiency. The tower occupies a unique position within the landscape, facilitating exploration and interaction with the environment.

The Kurgi Observation Tower serves a dual purpose: it functions as a supportive structural entity while offering visitors panoramic views of the landscape. Its design is grounded in a rational approach that harmonizes the built environment with nature. By incorporating elements such as viewing platforms and seating areas, the tower fosters engagement and encourages visitors to connect with their surroundings.

Material Selection and Structural Innovation

The architecture of The BOX employs a distinctive material palette, primarily comprising Corten steel, glass, and concrete. Corten steel is utilized for its weathered appearance and durability, reducing the need for additional maintenance. Glass elements contribute to transparency, allowing natural light to penetrate the structure and providing unobstructed views. Concrete anchors the tower, offering stability and serving as the core component that supports ascending elements.

The structural system is composed of a concrete core supplemented by self-supporting glass-steel composite boxes. This method of assembly facilitates effective load transfer while minimizing material usage. Vertical loads are efficiently distributed through the core, while cantilevered sections address wind pressure, contributing to the tower's resilience in varying weather conditions. The combination of these design approaches enhances the overall structural integrity while promoting sustainability.

User Experience and Connectivity with Nature

User experience is central to the design of The BOX. The inclusion of a central core facilitates vertical circulation, providing essential access to observation levels and housing utility services. Staircases and elevators create an interconnected flow, inviting visitors to experience the tower at different heights. The strategic placement of outdoor observation areas emphasizes the relationship between the structure and its natural context. Visitors are encouraged to enjoy both the elevated views and the inherent tranquility of the surrounding landscape.

In addition to providing a visual connection to nature, the project also considers social aspects. The design acknowledges the importance of community engagement and interaction, fostering a sense of belonging among users. The open layout and multiple viewpoints inspire exploration and promote dialogue, showcasing a thoughtful approach to architectural design.

For a comprehensive understanding of the Kurgi Observation Tower, readers are encouraged to explore the architectural plans, sections, and detailed designs of the project. These elements reveal the technical intricacies involved in its construction and offer deeper insights into the architectural ideas that influenced its development.

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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.

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