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Spiral Timber Structure with Thatch Roof Overlooking Wetlands

Author:
Weston Williamson + Partners
Spiral Timber Structure with Thatch Roof Overlooking Wetlands
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A spiral timber observation tower with a thatch roof offers expansive views of the wetlands, creating a functional space for birdwatching while integrating sustainable construction methods and local materials.
5 key facts about this project
01
A cone-shaped structure enhances stability while providing panoramic views.
02
Local timber slats create a natural aesthetic while ensuring durability.
03
The thatch roof integrates traditional building techniques with modern design.
04
Screw piles minimize environmental impact and ensure foundation stability.
05
Multiple observation platforms allow for dynamic engagement with the surroundings.

### Project Overview

The Pape Bird Observation Tower is situated in the Pape region, serving as a birdwatching platform that integrates with a footbridge. This structure allows visitors to observe birds in their natural habitat while commemorating the previous observation tower that once existed on the site. The design reflects a balance between functionality and the ecological context, providing an opportunity for engagement with the surrounding wetlands.

### Spatial Strategy

The design employs a cone-shaped structure with a spiraling staircase that facilitates both circulation and observation. As visitors ascend, they encounter a series of viewing platforms that offer panoramic views, enabling a continuous interaction with the environment. This tiered layout not only enhances accessibility but also fosters an immersive experience in the natural landscape. The architectural form evokes a fluid journey upward, encouraging users to appreciate the ecosystem from multiple vantage points.

### Materiality and Sustainability

Sustainability is a core consideration in the selection of materials used for the tower. The roofing features a 300mm thatch layer, which reflects local building traditions while providing insulation and weather resistance. The primary structure is composed of locally sourced timber, inclusive of 150mm thick timber slats for flooring, emphasizing eco-friendliness and supporting local economies. The foundation employs screw piles for stability in wet conditions, minimizing environmental disruption. Additionally, timber batten walls create a balance of transparency and protection, allowing for observation of wildlife while facilitating airflow. These material choices collectively illustrate a commitment to environmentally responsible design.

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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.

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

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
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