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Rainwater Harvesting and Gabled Roofs in a Greenhouse-Restaurant Overlooking Mývatn

Author:
Tigran Marutyan
Rainwater Harvesting and Gabled Roofs in a Greenhouse-Restaurant Overlooking Mývatn

Project in-detail

Incorporating gabled roofs and a rainwater harvesting system, the design emphasizes sustainability while providing a greenhouse and restaurant that enhances views of Mývatn and Hverfjall volcano.
5 key facts about this project
01
Rainwater is collected through a strategic gutter system that feeds into storage tanks beneath the structure.
02
Vertical hydroponic growing systems are integrated to enhance sustainable agriculture practices on-site.
03
The restaurant's orientation is specifically designed to maximize views of Hverfjall volcano.
04
A second storey provides elevated observation areas overlooking Mývatn Nature Baths.
05
The truss design draws inspiration from the Aegishjalmur stave, connecting the building to local cultural heritage.

The project is carefully designed to connect with its environment while focusing on sustainable practices. Positioned on an east-west axis, it takes advantage of sunlight year-round, essential for operating a greenhouse. The building overlooks Mývatn Nature Baths and Hverfjall volcano, placing it within a striking natural context. Its overall concept blends functionality with a design that reflects Icelandic culture.

Building Orientation and Structure

Three gable roofs define the structure. This shape is chosen to maximize sunlight exposure during the summer months, which is important for the greenhouse's operations. The extended volume adds a second storey to the building, offering impressive views of the surrounding landscape while also encouraging interactions among users.

Access and User Experience

A ramp provides access to the restaurant hall, leading visitors through spaces where they can observe vertical hydroponic channel growing systems. This design creates an engaging experience, encouraging a connection with the greenhouse. The ramp ends at an observation deck, allowing for clear views of Hverfjall volcano, enhancing the overall visitor experience.

Functional Spaces and Future Development

The restaurant is a significant part of the design, positioned to focus on Hverfjall volcano, while the kitchen is located below in a shaded area. This placement is efficient for service delivery. Plans have been made for future development, with an additional structure proposed that mirrors the main building to maintain sightlines of the natural landscape. The design clearly separates areas for parking and service, accommodating both current and anticipated needs.

Materiality and Sustainable Systems

Materials in the design include steel and concrete, supporting the structure while promoting durability. Specific elements such as steel I-beams, tubes with screw thread endings, and corrugated steel are highlighted. An effective rainwater management system is implemented, using gutters to capture runoff and directing it to tanks placed beneath the second floor. This approach meets the water needs of both the greenhouse and kitchen while reinforcing a commitment to sustainability.

Cultural influences are present in the design, particularly the use of a truss system inspired by the Aegishjalmur stave. This design element links the building to Icelandic heritage, adding depth to its overall aesthetic. The integration of cultural references enhances the connection to the site's history while supporting the functional and environmental goals of the project.

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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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