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Cave-Inspired Viewing Structure with Concrete and Steel Integration

Author:
Daniella Netrebko Eskildsen
Cave-Inspired Viewing Structure with Concrete and Steel Integration
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A unique integration of a cave-inspired form with concrete and steel creates a monumental viewing structure that offers visitors expansive views of Iceland's rugged landscape.
5 key facts about this project
01
Designed to evoke a cave-like experience for visitors.
02
Built with an in-situ cast reinforced concrete shell that blends with the landscape.
03
Features a tilted dome at the top for enhanced panoramic viewing.
04
Pathway integrates a simple dowel system for support and organic aesthetics.
05
Lighting is strategically designed to guide visitors during their ascent.

The Cave Tower is located in the rugged landscape of Iceland, designed to provide visitors with opportunities to engage with the environment. It serves primarily as an observation point, encouraging exploration of the region's dramatic views. The design concept focuses on a tall structure that interacts with the terrain, creating a connection between the built environment and the natural landscape.

Geometric Design

The tower is marked by its significant vertical form, which resembles a raw cut in the earth. From various viewpoints, it captures attention against the backdrop of Iceland's terrain. The entrance is discreetly positioned on the east side, leading into a spacious interior designed to evoke the sensation of being in a cave. This thematic choice fosters a unique relationship between visitors and the site, enhancing the exploration experience.

Spatial Journey

Visitors move through a carefully designed sequence of spaces, illuminated by warm dark orange lighting that adds to the atmosphere. As people ascend, their anticipation grows, culminating in a viewing area at the top that provides expansive views over the surrounding landscape. From this height, the contrast between the tower and the natural environment becomes evident. A notable rift in the ground reveals the wild beauty of Iceland, deepening visitors’ connection to the area.

Functionality and Materiality

The design includes essential program elements such as a viewing platform, a café, restrooms, and storage areas, all focused on visitor comfort. The structure is made from in-situ cast reinforced concrete, which helps it blend into the natural setting while maintaining stability. Internally, smooth concrete panels contribute to its raw appearance. A smaller heated area enhances energy efficiency and comfort, separated from the unheated spaces by a glass partition.

Path Integration

Access to the Cave Tower is via a path constructed using a simple dowel system that supports a beam structure. This design allows for a grounded experience, with planks of differing sizes forming the pathway, encouraging a visual connection with the landscape. The path promotes an organic approach to the structure, reinforcing the idea of discovery as visitors draw nearer.

The south elevation showcases clear geometric lines, where the circular viewing area meets the square body of the tower. This arrangement emphasizes the function of the tower while standing in contrast to the north face, which has a rough and unsystematic look. This visual contrast highlights the immersive experience that the Cave Tower aims to offer, inviting visitors to appreciate the natural beauty surrounding them.

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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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