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Terraced Greenery with Climate Zones Integrating Sustainable Practices

Author:
Anatol Popławski
Terraced Greenery with Climate Zones Integrating Sustainable Practices
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Terraced greenhouse sectors create a unique microclimate system while seamlessly incorporating a restaurant that emphasizes sustainable practices and efficient resource management.
5 key facts about this project
01
Terraced design optimizes views of Hverfjall volcano.
02
Four distinct climate zones support diverse plant species.
03
Off-the-grid systems ensure complete self-sufficiency.
04
Biogas plant converts waste into usable energy.
05
Water treatment system utilizes plants for gray sewage recycling.

The Green Cascade project is located near Hverfjall volcano in Iceland. It combines a restaurant with a greenhouse, focusing on preserving the beautiful views of the surrounding landscape. The design concept emphasizes the relationship between the built environment and nature while promoting sustainability and enhancing the user experience.

Terraced Greenhouse Design

The layout of the project features multiple terraces that adapt to the site's slope. This design allows the greenery to flow downwards visually, connecting the building to the landscape. Each level creates opportunities for people to engage with nature. Different greenhouse sections encourage various kinds of plant growth, adding to the overall aesthetic appeal.

Climate Zone Integration

Inside the greenhouse, there are four specific climate zones, each designed for different types of plants. These include a temperate area, a tropical zone for bananas and dates, a nursery for young plants, and a section for Mediterranean climate plants. This division not only supports a diverse array of agriculture but also provides educational experiences for visitors about different ecosystems.

Sustainability Practices

Sustainability is a key focus of the project. It follows an off-the-grid model, aiming for complete self-sufficiency. A biogas plant processes organic waste into energy, while a compost heap converts biodegradable materials into fertilizer. Additionally, a water treatment system cleans gray sewage by using plant systems, ensuring that water is reused and contributing to the project's environmental goals.

Thermal Efficiency and Functionality

Thermal efficiency is carefully considered in the building's design. The arrangement of spaces minimizes heat loss, placing the warmest areas away from cold exposure. Public and private spaces are clearly defined. Public areas center around the greenhouses, while support zones like the kitchen and nursery are less visible. This layout improves the flow of operations and enhances the overall visitor experience.

Visitors can enjoy the dynamic interaction between the restaurant and the lush, vegetated terraces. The design encourages guests to appreciate the natural surroundings and engage with the lush greenery while enjoying their meals.

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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.

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