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Rammed Earth Structure With Curved Stairs Overlooking Cave Landscape

Author:
Laura Mihalache
Rammed Earth Structure With Curved Stairs Overlooking Cave Landscape

Project in-detail

Rammed earth construction defines a unique observation tower with curved stairs that frames views of the surrounding cave landscape, inviting visitors to engage with their natural environment while serving as a visitor center.
5 key facts about this project
01
Rammed earth walls enhance thermal performance and sustainability.
02
Curved staircases mimic natural cave formations throughout the interior.
03
Void spaces provide framed views of both the tower structure and landscape.
04
The tower's roof collects rainwater for efficient drainage and landscaping needs.
05
A modular walking path system adapts to varied terrain and site conditions.

The setting near Grjótagjá's caves offers a special exploration of how natural features can blend with buildings. The design is known as a "cave tower," representing the experience of being inside a cave along with the viewpoint provided by a tower. This combination invites visitors to engage with both the environment and the structure.

Conceptual Framework

The observation tower is crafted to fit into the surrounding rocky landscape effectively. It serves as more than just a place for viewing; it makes a statement about the relationship between built forms and nature. Rather than tapering upwards like many traditional towers, the interior space expands as one climbs, allowing more light in and creating a feeling of openness.

Entrance and Visitor Engagement

Entering the tower, visitors walk through an opening designed like a crevice in stone. This leads to a visitor center featuring an information stand. This element connects visitors with different experiences: the caves, the observation area, and a waiting space. Such a design clarifies the path and makes it easier for guests to navigate their experience.

Interior Atmosphere and Experience

Inside, the design creates a cave-like feel through carefully shaped elements. Curved stairs guide visitors along a pathway, presenting different heights and spaces that interact visually. A café located on an upper level offers views of the surrounding area, allowing a moment of reflection on the landscape beyond the tower.

Spatial Dynamics and Materiality

The structure includes voids that enhance the experience by framing views of the landscape as visitors move about. The use of rammed earth in construction adds a practical and attractive quality, aligning with goals for sustainability. Additionally, aluminum components are employed for their lightweight and cost-effective properties, contributing to the tower's visual design while addressing local weather conditions.

A modular walking path system, designed in a 1x1 meter configuration, is flexible for various terrains. This adaptability allows for easy movement across both flat ground and slopes, making connections to the caves or the fissure created by the shifting continental plates.

To support environmental sustainability, the roof design incorporates a system for collecting rainwater, enhancing drainage efficiency and integrating nature into the overall architectural plan of the tower.

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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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