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Subterranean Structure Embracing Corten Steel and Concrete with Integrated Hydroponics

Author:
Corey V Papadopoli
Subterranean Structure Embracing Corten Steel and Concrete with Integrated Hydroponics

Project in-detail

Constructed with Corten steel and concrete, this subterranean car barn integrates hydroponic farming and versatile spaces to serve as a practical storage facility while promoting sustainability within its natural landscape.
5 key facts about this project
01
Constructed partly underground to minimize visual impact and enhance landscape integration.
02
Incorporates hydroponic farming to promote sustainable urban agriculture within the facility.
03
Features Corten steel cladding that develops a unique patina over time, enhancing durability.
04
Includes multifunctional spaces to serve community needs beyond vehicle storage.
05
Utilizes passive design principles to optimize natural light and thermal efficiency.

### Overview

Located within a rural or semi-rural setting characterized by grassy terrain and gentle slopes, the Subterranean Car Barn incorporates sub-surface design elements that enhance its integration with the natural environment. The primary intent of the project is to minimize disruption to the landscape while providing a multifunctional facility that serves both vehicular storage and communal activities. The architectural approach emphasizes a barn aesthetic, aligning it aesthetically with traditional agricultural structures and reinforcing its contextual relevance.

### Spatial Configuration

The design features a series of volumetric elements arranged in a linear fashion, echoing natural formations. This configuration promotes an open relationship with the surrounding landscape, facilitating smooth transitions for both vehicles and pedestrians. The interior layout accommodates not only vehicle storage but also spaces for work and leisure, including a commercial kitchen, office areas, and storage facilities. The inclusion of an indoor hydroponic farm further emphasizes the project's commitment to functionality and sustainability.

### Material Considerations

The material palette is anchored by concrete, which provides structural integrity and durability while accommodating diverse forms. Corten steel is utilized for its weathered aesthetics and corrosion resistance, harmonizing with the rustic environment. Wooden elements introduce warmth and texture, particularly in shared spaces, enhancing user experience and fostering a welcoming atmosphere. Expansive glass windows allow ample natural light into the interior, enhancing connections to the exterior and improving overall user engagement.

### Sustainable Integration

Sustainable design practices are central to the project, incorporating green technologies such as solar energy systems and hydroponics within its operational framework. The interplay of natural and industrial materials not only supports durability but also reflects ecological sensitivity, positioning the Car Barn as a model for contemporary architectural practices that prioritize environmental stewardship and community inclusivity.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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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

Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
Denver Affordable Housing Challenge
Denver Affordable Housing Challenge
Affordable Housing Series 19th Edition
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #4
MICROHOME
MICROHOME
100,000 € Prize Fund / Kingpsan Edition #10
Kinderspace
Kinderspace
Architecture for Children’s Development #3
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