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Suspended Retreat of Steel and Oriented Strand Board Above the Forest Floor

Authors:
Münire sude Argun, Nezihe gökçe Kökcan
Suspended Retreat of Steel and Oriented Strand Board Above the Forest Floor

Project in-detail

Elevated above the forest floor, this cabin utilizes a cut tree for support and features a unique combination of steel and oriented strand board to create a meditative retreat focused on connection with nature.
5 key facts about this project
01
The cabin is supported by a cut tree, creating a direct connection to the landscape.
02
Three distinct levels maximize functionality within a compact footprint.
03
Triangular windows enhance natural light and provide panoramic views.
04
Steel framework ensures structural stability while allowing for a lightweight design.
05
A composting toilet optimizes space and promotes sustainability in waste management.

The Hanging Octahedron creates a unique living space that emphasizes a connection with nature while serving as a quiet place for meditation. The design elevates the traditional cabin concept above the ground, encouraging the feeling of being suspended in the air. This not only transforms the user experience but also integrates the structure harmoniously with the natural landscape.

Structural Integrity and Layout

The elongated octahedral form resembles a pine tree, enabling the cabin to rest on a cut tree with cables that extend to neighboring trees for support. Inside, the design is organized into three distinct levels that maximize functionality. The bottom level serves as the entrance and includes a basic toilet. The middle level provides warmth and comfort for living, while the lowest level can be used for storage or a water tank. The layout thoughtfully balances accessibility with practical needs.

Material Composition

Materials are chosen carefully to support the design's goals. The core structure uses steel to ensure strength and stability. The walls consist of triangular panels constructed from oriented strand board, with rockwool insulation for thermal efficiency. Double-glazed windows set in triangular frames allow for ventilation and bring views of the surrounding area, especially towards the nearby lake. This combination of materials enhances the performance of the cabin while maintaining a light and airy feel.

Energy and Sustainability

Energy efficiency is a key component of the design. A wood stove serves as the central heat source and also allows for cooking. Fresh air enters through a small duct that pre-heats the air using heat from the stove. Warm air rises into the sleeping area, creating a comfortable environment. A composting toilet in the lower level uses space effectively for waste management, reflecting a commitment to sustainable practices.

The Hanging Octahedron with its geometric simplicity and functional design encourages a strong connection to its environment, promoting a serene atmosphere while providing practical living solutions.

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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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