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Biobased Greenhouse with Cross-Laminated Timber and Community Spaces

Authors:
Agnieszka Trzcinska, Przemysław Chmielarski, Aditya Soman, Mick Bloemendal
Biobased Greenhouse with Cross-Laminated Timber and Community Spaces
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A biobased greenhouse integrates cross-laminated timber within a community-focused space, offering multifunctional areas that foster connection and interaction in the heart of Iceland’s landscape.
5 key facts about this project
01
Biobased materials promote sustainable construction practices.
02
Cross-laminated timber enhances structural strength and energy efficiency.
03
A greenhouse serves as a central feature for ecological interaction.
04
Large windows connect interior spaces with the surrounding landscape.
05
An amphitheater supports community gatherings and events.

The Modern Turf House is a new building in Iceland that reinterprets the traditional turf house. Located in a beautiful landscape, it serves several purposes, including a restaurant, a multipurpose hall, and a greenhouse. The design combines old architectural styles with new ideas, creating a place that connects visitors to the surrounding nature.

Design Concept

The structure showcases a fresh take on the familiar shapes of turf houses. Visitors first encounter a bold and engaging building that invites them to explore. The design emphasizes movement and interaction, with spaces that flow into one another, making it easy for people to navigate through the different areas.



Integration of Greenhouse

The greenhouse is an important feature of the building, supporting both practical use and a unique experience. It allows visitors to connect with natural elements, highlighting the project's focus on sustainability. This feature is not just functional; it acts as a central point that brings attention to the relationship between the built environment and nature.



Spatial Organization

The layout is carefully organized to ensure accessibility and ease of movement. It includes a multipurpose hall, dining spaces, and service areas that are interconnected. An outdoor deck expands the usable space, allowing visitors to enjoy the outdoors, while an amphitheater provides a venue for community gatherings and events.



Material Selection

The chosen materials reflect a commitment to eco-friendly design. Cross-laminated timber is used for its strength and sustainability. Stone wool provides effective insulation, enhancing the building’s energy efficiency. Biobased materials are also included, supporting a design approach that aims to reduce environmental impact. This thoughtful selection of materials reinforces the project’s alignment with local context and ecological goals.



Large windows throughout the building allow for plenty of natural light, making the spaces brighter and reducing the need for artificial lighting. The dining areas are positioned to offer views of the surrounding landscape, providing a strong connection between the occupants and the outdoors. This design detail enriches the experience, ensuring that visitors feel a part of the natural setting.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 19 November 2025

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