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Geothermal Architecture with Lava Rock and Hydroponics

Authors:
David Sheppard, Yann Frampton
Geothermal Architecture with Lava Rock and Hydroponics

Project in-detail

Incorporating geothermal piping and a façade of lava rock, this structure seamlessly combines hydroponic food production with a restaurant, enhancing sustainability within Iceland's unique landscape.
5 key facts about this project
01
Utilizes recycled geothermal piping inspired by local volcanic rock.
02
Features a glass façade to maximize solar heat gain for plant growth.
03
Integrates extensive hydroponic systems for on-site food production.
04
Designed with two distinct elements: a vertical tower and horizontal extensions.
05
Incorporates ground-source heat pumps for energy-efficient climate control.

The Iceland Greenhouse Restaurant is situated in an area defined by black lava rock. It serves as both a dining venue and a greenhouse, creating a blend of two functions into one cohesive design. The focus on sustainability and food cultivation drives the architectural concept, leading to a thoughtful relationship between the structure and its natural surroundings.

Design Concept

The layout of the building features a linear arrangement that extends across the landscape. This design approach brings together vertical and horizontal forms, creating a balance between the natural terrain and the constructed environment. The building’s low profile respects the local geography, allowing it to coexist with the land rather than dominating it.



Structural Components

Structural elements reference geothermal pipes found throughout Iceland. This connection to the local infrastructure emphasizes the use of regional resources. The project also incorporates recycled geothermal piping, reflecting the hues of the surrounding volcanic rock. This choice supports both environmental sustainability and a sense of place within the architectural design.



Functional Integration

A notable feature of the restaurant is its integration of hydroponic systems, allowing for food production within the space. The glass façade increases solar heat gain, creating optimal conditions for plant growth while offering views of the exterior. Inside, the design organizes various functions that flow from one area to another, from exhibition spaces on the ground floor to dining areas and greenhouse activities on upper levels.



Environmental Considerations

Ground-source heat pumps are employed for heating and hot water, utilizing the geothermal energy available in Iceland. This technology highlights a commitment to sustainability in the design, allowing the building to operate efficiently and with a reduced impact on the environment. The integration of these systems illustrates a practical approach to contemporary architectural needs.



The design culminates in expansive roof decks that provide wide views of the surrounding landscape. These areas enhance the experience for those who use the space, fostering engagement and interaction within the community.

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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
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