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Geothermal Greenhouse Built Into Bedrock With Panoramic Restaurant

Authors:
Yuka Takahashi, Yoshitaka Narita, Genki Kitazono, Horie Ken
Geothermal Greenhouse Built Into Bedrock With Panoramic Restaurant

Project in-detail

Built into the bedrock, the greenhouse utilizes geothermal energy while offering panoramic views from the floating restaurant, seamlessly integrating agriculture with dining experiences in Iceland's midwinter landscape.
5 key facts about this project
01
Located at the top of a ridge for optimal views.
02
Integrates a geothermal heating system for efficient cultivation.
03
Designed with a circular form to capture sunlight from all angles.
04
Combines a restaurant with a greenhouse for an interactive dining experience.
05
Heavy use of bedrock in construction to enhance natural aesthetics.

Situated in the picturesque Mývatn region of Iceland, the design presents a thoughtful interaction between functionality and the natural surroundings. This structure enhances the user experience during the midwinter months while serving as a greenhouse, restaurant, and hall. The concept revolves around making the most of sunlight by utilizing the low-angle path of the sun and creating a relationship between the building and the landscape. The circular design encourages visitors to engage with both the architecture and the beauty of nature.

Functionality and Spatial Organization

The building is placed at the top of a ridge, allowing for impressive views of the environment. It is divided into four distinct areas: a floating restaurant, a pilotis ground floor, a greenhouse on the first basement level, and a hall located in the second basement. This vertical arrangement not only makes movement between spaces more efficient but also creates opportunities for interaction, enhancing the overall experience for guests.

Restaurant and User Engagement

The restaurant occupies the highest volume in the design, offering sweeping views of the Mývatn region. The space is warm and inviting, providing visitors with the choice of enjoying meals made from crops harvested on-site or using a shared kitchen for self-preparation. This combination promotes engagement, letting guests experience both the dining aspect and the agricultural elements of the design.

Greenhouse and Sustainable Practices

The greenhouse is integrated into the landscape, designed to reduce disturbances from outside elements. By sinking into the ground, it creates a stable environment for growth that effectively utilizes geothermal heat from the area. Transparency is key to the greenhouse’s function, allowing natural light to enter and support the plants' development.

Natural Elements in the Hall

In the second basement, the hall incorporates original bedrock, enhancing its connection to the surrounding landscape. Large openings in the roof allow natural light to stream in, establishing a clear relationship between the inside space and the sky. This thoughtful design element creates a peaceful atmosphere, allowing visitors to appreciate the landscape even while indoors.

The combination of light and shadow in various spaces changes throughout the day, adding depth to the experience and strengthening the bond between the architecture and its natural setting.

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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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