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Sustainable Greenhouse With Sawtooth Roof and Clerestory Windows

Author:
Geoffrey Chew
Sustainable Greenhouse With Sawtooth Roof and Clerestory Windows

Project in-detail

The sawtooth roof design enhances natural light and enables passive cooling, while clerestory windows create a dynamic interaction between the greenhouse and dining areas, culminating in a restaurant that celebrates sustainable agricultural practices in the Icelandic landscape.
5 key facts about this project
01
Sowilō and Jēra runes influence the architectural concept, linking the design to Norse agricultural heritage.
02
The sawtooth roof design maximizes natural light while facilitating passive cooling throughout the space.
03
Clerestory windows improve ventilation and create a visual connection between the greenhouse and dining areas.
04
The building's orientation optimizes sunlight exposure and enhances views of the surrounding landscape.
05
Accessibility features ensure all public areas are navigable for individuals with mobility challenges.

The Greenhouse Restaurant, known as Sowilō + Jēra, sits near the Mývatn Nature Baths in Iceland. It serves as both a dining space and a greenhouse, embodying the area's agricultural heritage. The design draws from the practices of Norse farmers, making use of the Sowilō and Jēra runes from the Elder Futhark. This connection to history highlights themes of growth and sustainability while contrasting with the surrounding landscape's beauty.

Site Planning
The positioning of the restaurant considers the topography and the views from nearby attractions. The parking area is situated to the north, allowing guests to approach from the south, where the ground levels off. This decision optimizes access and minimizes disruption to the natural scenery. The design respects nearby structures by aligning similar roof lines and colors, all while maintaining a suitable distance from the site boundary.

Spatial Organization
Inside, the restaurant’s layout promotes easy movement, with the long side oriented to the south to capture sunlight. This arrangement allows ample natural light to brighten the dining areas. Non-greenhouse spaces are rotated to provide views of Haverfjall volcano, connecting diners with the surrounding landscape. This careful organization enhances functionality while creating a pleasant experience for visitors.

Sustainable Design Features
The restaurant features a sawtooth roof that aids in passive cooling and maximizes sunlight for the greenhouse. Clerestory windows help hot air escape, keeping the interior comfortable for both plants and diners. The design takes advantage of natural ventilation to support energy efficiency, reflecting an intention to reduce environmental impact.

Accessibility
Accessibility stands out in the design, with split levels that cater to individuals with mobility needs. Ramps and platform lifts ensure that all public areas are reachable without assistance. This focus on inclusivity aligns with modern standards for public spaces and improves the overall experience for all guests.

The thoughtful interplay of light within the restaurant is evident in the sawtooth roof and large clerestory windows. They bring the outside in, allowing diners to enjoy both their meals and the view of the plants growing within the space.

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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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