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Ecological Birdwatching Tower Featuring Kingspan and Troldtekt in a Curved Egg Shape

Ecological Birdwatching Tower Featuring Kingspan and Troldtekt in a Curved Egg Shape
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Embodying the form of a delicate egg, this birdwatching tower utilizes Kingspan and Troldtekt materials to harmonize with its natural surroundings while providing a functional space for observing wildlife in the Sebino Nature Reserve.
5 key facts about this project
01
The structure’s egg shape minimizes visual impact on the landscape and reflects local nesting habits.
02
Kingspan insulation enhances energy efficiency while providing durability against the elements.
03
Troldtekt acoustic panels improve sound insulation, creating a quieter environment for wildlife observation.
04
A rainwater harvesting system supports sustainability and reduces reliance on external water sources.
05
Strategically positioned to reduce human intrusion on surrounding wildlife habitats.

### Overview

Located in the Sebino Nature Reserve along Iseo Lake in Italy, the "Micro Home in the Shell" serves as a birdwatching tower that integrates human activity with the local ecosystem. The design aims to enhance user interaction with the rich biodiversity of the area while providing a sanctuary for both visitors and wildlife. The structure's form and arrangement reflect a commitment to ecological mindfulness and preservation.

### Spatial Strategy and User Engagement

The egg-shaped design of the structure highlights the relationship between the built environment and the natural world, evoking themes of nesting and protection. The interior layout features distinct functional zones, including public observation areas, private observatories, and living spaces, facilitating a range of user experiences. This multifaceted approach allows for both social interaction and solitary observation, catering to diverse user needs while ensuring ongoing engagement with the surrounding landscape.

### Materiality and Sustainability

The materials utilized in the construction prioritize sustainability and efficiency. The outer shell is crafted from a waterproof and insulated product by Kingspan, enhancing energy performance and durability. The interior space features Troldtekt acoustic ceiling tiles, promoting sound insulation to enhance the user experience during birdwatching. Additionally, a rainwater harvesting system using a Kingspan Silum tank underscores the project's commitment to eco-friendliness and self-sufficiency. The design carefully integrates into the natural surroundings, with placement considerations that minimize disruption to wildlife and their habitats.

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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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