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Lava Stone Shelter with Water Collection System and Observation Platform

Authors:
Katarina Lončarević, Natalija Bogdanović, Bojana Pašajlić
Lava Stone Shelter with Water Collection System and Observation Platform

Project in-detail

Built with locally sourced lava stone and designed to capture atmospheric precipitation, the structure serves as both a sustainable shelter and an open observation platform, seamlessly integrating public and private spaces within its expansive layout.
5 key facts about this project
01
Constructed using locally sourced lava stone for environmental integration.
02
Incorporates a railing system that captures and repurposes atmospheric precipitation.
03
Designed as an open observation platform with a fully passable roof.
04
Expands into two additional caves, enhancing functional space without impeding flow.
05
Features a water treatment system powered by nearby windmills for sustainability.

The design explores the connection between inner and outer spaces, situated in a location defined by two tectonic plates. The structure serves multiple roles, functioning as both a bridge and a shelter. It integrates public and private areas under a single roof, addressing the varied needs of its users while encouraging interaction with the surrounding landscape.

Design Concept

The internal layout divides the building into private and public sections, offering a careful balance between openness and privacy. This distinction enhances social interaction while allowing individual spaces to feel secure. The concept expands into two additional caves, which connect effortlessly with the main structure. This arrangement maintains an organic flow and enhances the functional capabilities of the design.

Materiality

Materials play an important role in shaping the building's character. The use of local crushed lava stone, cement milk, and transparent epoxy resin is highlighted. The multi-layered facade not only provides visual variety but also ensures necessary insulation. Sourcing materials from the local environment enhances the connection between the structure and its geographical setting, grounding it in its place.

Sustainability Features

Sustainability is a key focus in the design. A railing system collects atmospheric precipitation, allowing water to be reused within the building. Accompanying this system is water treatment that is supported by energy harnessed from nearby windmills. This integration reflects a commitment to reducing environmental impact and increases the self-sufficiency of the structure.

Spatial Dynamics

The building operates as an open observation platform, featuring a roof that invites engagement with the outside. Thoughtful circulation allows for easy movement throughout the space, ensuring that users can navigate freely. Large windows frame views of the surrounding landscape, connecting the interior experience with the natural environment.

The play of light across the multi-layered facade throughout the day transitions the interior atmosphere, emphasizing the design's adaptability to changing conditions.

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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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