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Cross Laminated Timber Observation Tower with Integrated Boardwalk in Wetland Habitat

Authors:
Anna Cornaro, Valerio De divitiis, Francesco De tulio
Cross Laminated Timber Observation Tower with Integrated Boardwalk in Wetland Habitat

Project in-detail

Constructed primarily from cross laminated timber and integrated with a protected boardwalk, the structure elevates visitor engagement while minimizing ecological impact in its wetland environment.
5 key facts about this project
01
Constructed without mechanical excavation to protect the wetland ecosystem.
02
Features multiple accessible promenade levels for enhanced visitor interaction.
03
Utilizes a shallow foundation to minimize environmental disruption.
04
Incorporates vertical steel connections for increased structural stability.
05
Designed to serve as both an observation point and an educational resource.

The Helix Tower is a prototype observation structure designed for sustainable use in the Al Wathba Wetland Reserve Area. It seeks to blend functionality with attention to the surrounding ecological environment. With a focus on enhancing the visitor experience, the design minimizes environmental impact. By employing contemporary architectural principles, the Helix Tower aims to reshape how visitors interact with nature.

Design Concept

The concept behind the Helix Tower moves away from conventional observation structures, emphasizing sustainability and user comfort. It features accessible boardwalks that allow for easy movement and greater engagement with the landscape. A series of lifts support the vertical navigation of the tower, ensuring that all visitors, including those with mobility challenges, can enjoy the views and features of the site.

Structural Specifications

This tower covers a total floor area of 320 square meters and stands at a maximum height of 12 meters. The construction employs a shallow foundation, aligning with goals of environmental preservation. This approach eliminates the need for mechanical excavation, showcasing a focus on construction practices that respect the natural surroundings. The dimensions enhance the tower’s visibility within the wetland landscape, allowing it to integrate without overpowering the area.

Materials and Construction

Constructed with vertical steel pipes, cross laminated timber panels, metal mesh, and glass railings, the Helix Tower carefully combines various materials to achieve structural reliability. Vertical steel connections between the planks further reinforce the architectural integrity. Additionally, horizontal modular X-Lam panels, measuring 170 mm thick and 1600 mm wide, highlight the project's commitment to sustainable building practices.

Visitor Experience

The layout of the tower incorporates promenade levels at +2.00 m, +6.00 m, +10.00 m, and +12.00 m, allowing for multiple viewpoints around the wetland. This configuration creates opportunities for panoramic views, encouraging visitors to engage with the ecosystem and its diverse features. The elevation changes are designed to enhance visibility while maintaining a focus on ecological preservation, ensuring that the tower remains both functional and educational.

At ground level, the design integrates with the protected boardwalk, facilitating a connection between visitors and the wetland's rich biodiversity. The careful arrangement and use of space allow for a memorable experience centered on nature.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

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