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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 Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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20,000 USD Prize ideas COMPETITION
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Early bird registration deadline 19 November 2025

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