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Coffee Ground Tiles and Gabion Walls in a Volcanic Landscape Retreat

Author:
Wing hei joanna Hui
Coffee Ground Tiles and Gabion Walls in a Volcanic Landscape Retreat

Project in-detail

Repurposed coffee ground tiles and a gabion wall form a distinctive architectural response to the volcanic landscape of Hjverfall, creating a multifunctional space for visitors to connect with nature while enjoying a café and exhibition area.
5 key facts about this project
01
Repurposed coffee ground tiles provide a unique facade material.
02
The design features three circular cores reflecting natural peaks.
03
An inner void enhances light and spatial openness throughout.
04
A rooftop observatory offers panoramic views of Hjverfall.
05
The gabion wall utilizes local basalt for structural integrity.

The RIM is located at the edge of Hverfjall in Iceland and serves as a meeting point for visitors interested in the natural beauty of Hjverfall. The design connects with the volcanic landscape in a meaningful way, reflecting the area's unique geography. The circular shape of the building echoes the nearby crater, creating an architectural response that encourages interaction between people and their surroundings.

Design Concept

The circular layout of The RIM not only offers an inviting appearance but also facilitates movement within and around the building. Central to the design is an inner void that allows natural light to fill the space, enhancing the atmosphere inside. This openness creates a sense of connection to the landscape just outside the walls. It invites visitors to pause and reflect while engaging with nature.

Spatial Layout

The ground floor contains an exhibition space that leads visitors toward existing hiking trails. This setup encourages exploration and interaction with the peaceful landscape. The flexible design allows for different configurations and events, adapting to the needs of the visitors. On the first floor, a café and coffee roastery provide impressive views of Hjverfall, transforming the natural feature into a point of interest for guests to enjoy.

Materiality

Materials used in The RIM reflect local culture and a commitment to sustainability. The facade consists of tiles made from repurposed local coffee grounds, combined with bio-binders, minerals, and plant-based resin. This choice gives the exterior a unique look while being lighter and easier to maintain compared to traditional materials. A gabion toe wall filled with local basalt effectively ties the building to the landscape, enhancing its sense of place.

Unique Features

The rooftop observatory stands out as an important feature, designed for use at night and delivering extensive views of the surrounding area. Visitors can take in the scenery from a fresh perspective, deepening their connection to the volcanic landscape. The careful attention to both form and function within the design creates a welcoming space that encourages people to experience and appreciate the natural beauty of Iceland.

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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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