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Helical Form of Concrete and Metal Embracing Natural Surroundings in a Biosphere Reserve

Authors:
Rittipong Tiandum, Sasithorn Tiandum
Helical Form of Concrete and Metal Embracing Natural Surroundings in a Biosphere Reserve
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The helical structure, inspired by the form of a pine tree, rises within the North Vidzeme Biosphere Reserve, offering panoramic views while seamlessly integrating visitor observation spaces with the surrounding natural landscape.
5 key facts about this project
01
Helical structure mimics the form of a pine tree.
02
Designed for optimal panoramic views of the biosphere reserve.
03
Integrates accessibility features for all visitors.
04
Curved seating areas enhance visitor comfort and engagement.
05
Double spiral staircase facilitates efficient movement between levels.

The Kurgi Observation Tower is located in the North Vidzeme Biosphere Reserve, along the border between Latvia and Estonia. This tower serves to enhance the visitor experience while encouraging a deeper connection with the natural environment and the region's equestrian culture. Its design takes inspiration from the shape of a pine tree, featuring a helix structure that blends with the surrounding landscape. The focus is on providing expansive views of the biosphere while maintaining a close relationship with nature.

Initial Floor Functionality

On the first floor, practical elements take center stage. This level includes facilities for visitor briefings, storage, and toilets, along with areas for observing horse training. It serves as an essential starting point, guiding visitors in understanding the farm's activities and the region's unique equestrian heritage.

Engaging Observation Levels

The second floor enhances visitor engagement with the local farm activities, allowing for direct observation and interaction. As guests move to the third floor, they reach the height of the surrounding tree line. This elevation offers beautiful views for those who come to enjoy the quiet moments of sunrise and sunset, highlighting the connection between the structure and its natural setting.

Panoramic Experiences

Ascending to the fourth floor, visitors are rewarded with views that extend beyond the nearby trees. Here, they can appreciate distant landmarks, including Tündre Lake and Holdre loss. The fifth floor features a glass-enclosed lounge that allows for unobstructed panoramic views while also providing a space for guests to purchase souvenirs from the farm.

Accessibility and Design Integration

The design strongly considers accessibility, incorporating ramps and elevators to ensure that everyone can enjoy the space. A double spiral staircase facilitates smooth movement between levels, adding to the overall experience. Each detail, from seating arrangements to viewing platforms, is thoughtfully included to encourage a connection with the environment and enhance visitors' enjoyment of the landscape.

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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.

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Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
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