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Corten Steel and Prefabricated Concrete Harmonizing with Native Landscape

Authors:
Ana Tavares, Sofie Camargo
Corten Steel and Prefabricated Concrete Harmonizing with Native Landscape
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Constructed with Corten steel and prefabricated concrete, the design integrates rainwater management and preserves native vegetation to create adaptable residential spaces in a harmonious relationship with the landscape.
5 key facts about this project
01
Constructed using prefabricated concrete to minimize energy waste.
02
Incorporates a rainwater collection system for self-sufficient water use.
03
Features a "U" shaped floor plan to enhance indoor-outdoor connectivity.
04
Prioritizes native vegetation, preserving the local ecosystem.
05
Includes separate modules for public and private living spaces.

"Bucolic Housing" is an exploration of sustainable modular living in the landscape of Évora, Portugal. The design works to connect with nature while providing a functional residential solution. The focus is on a modular layout that adapts to different lifestyles, emphasizing simplicity and environmental responsibility.

Design Concept

The layout consists of a "U" shaped floor plan that creates a flow between indoor and outdoor spaces. It has three main modules that guide movement from public to private areas. The entrance module includes the living room, a small service bathroom, and storage space. Next, the kitchen and dining area are designed for shared meals and gatherings. The private area consists of bedrooms, each with its own bathroom, allowing for privacy.

Sustainability Initiatives

Sustainability is at the heart of the design. The project carefully preserves the existing native plants, which helps maintain local ecosystems and avoids using non-native species. The design also ensures that soil permeability is kept intact, which contributes to ecological balance. This thoughtful approach reflects an awareness of how the built environment interacts with nature.

Material Usage

Material choices play an important role in the design's sustainability goals. Prefabricated concrete is the main structural material, chosen for its efficiency and reduced energy use during construction. This decision helps lower the overall environmental impact. Corten steel is used to provide durability and aesthetic appeal, weathering naturally over time. Glass is incorporated to enhance natural light and strengthen the connection between inside and outside.

Rainwater Management

An effective rainwater collection system is another key feature. It captures rain from the roof and directs it to a filtration and storage setup. This allows for the use of treated water within the plumbing system, reducing reliance on other water sources. By integrating this system, the design promotes responsible water use and underlines the principles of sustainable living.

The design includes careful attention to solar orientation, which optimizes natural light and reduces energy consumption. This method creates a living space that respects its surroundings while providing comfort and function for its inhabitants.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
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Final registration deadline 30 October 2025

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