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Corten Steel Observation Tower Embracing Geothermal Energy and Natural Landscapes

Authors:
Teresa Cabrera arzoz, Olga Sánchez moreno, Ignacio Ruiz del portal pauner
Corten Steel Observation Tower Embracing Geothermal Energy and Natural Landscapes

Project in-detail

Standing 11 meters tall and constructed with corten steel, the observation tower draws upon geothermal principles and rainwater catchment systems to harmonize with the rugged Icelandic landscape while serving as a vital community gathering space.
5 key facts about this project
01
Observation tower reaches 11 meters in height, providing expansive views of the rugged terrain.
02
Utilizes corten steel for durability against harsh weather conditions typical in Iceland.
03
Incorporates a geothermal energy system to enhance sustainability and resource efficiency.
04
Features rainwater catchment systems for efficient water use across the facility.
05
Two pavilions serve distinct functions, promoting community interaction and resource accessibility.

The Iceland Cave Tower project is situated in the expansive landscape of Iceland. It offers an observation point and serves as a community hub. The design revolves around an observation tower that captures the attention of anyone passing by. Located along a roadway, it interacts meaningfully with the area's geological features. The project also includes two pavilions that enhance the overall function, providing space for various activities while inviting interaction.

Observation Tower

The observation tower reaches a height of 11 meters, featuring three distinct levels. Each level is designed to offer different views of the surrounding terrain. The lower levels keep close connections to the natural features, while the upper level provides wide-ranging vistas of Iceland's rugged beauty. Attention to accessibility ensures that all visitors can explore the space without difficulty. The presence of barrier-free access and an elevator promotes inclusivity.

Pavilion Spaces

Two pavilions flank the observation tower, each with specific roles. One pavilion serves as an information center, including areas for a cafeteria, office space, and restrooms. Rainwater catchment systems are part of the design, which aids in resource conservation. Surrounding pathways extend from the tower, creating a lively public space that encourages movement and community engagement.

Bioclimatic Considerations

Bioclimatic strategies play a key role in the design, contributing to energy efficiency and comfort. Special glazing reduces heat loss while allowing sunlight to enter, maintaining stable temperatures indoors. The steeply pitched roofs are effective at managing rain and snow, helping to avoid ice dams. Extended overhangs provide needed shade during summer and allow sunlight in during winter.

Materials and Modularity

Materials are chosen to reflect the local context. The project incorporates wood sourced from the nearby area, supporting traditional Icelandic building methods. Corten steel sheets are used for the exterior, providing protection against the local climate. A modular approach characterizes the design of pathways, making construction simpler while maintaining a unified look. Each module has angled designs that create a pleasing connection between the built structures and the landscape.

The design culminates in a viewing platform that extends outward, fostering a feeling of openness. Visitors are encouraged to immerse themselves in the expansive views of the Icelandic landscape, creating a strong connection between people and 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

Enter an open architecture
competition now

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