Vertical Green: A Sustainable Take on Modular Architecture

As global awareness around climate change and resource conservation intensifies, the built environment must adapt to meet the demands of a greener future. "Vertical Green" is an innovative architectural proposal that merges modular architecture with adaptive reuse, turning underused parking garages into vertical communities lush with vegetation and human activity.

Conceived by Jordan Overton and Edgar Ruiz, and shortlisted for the Plugin Housing Challenge 2020, the project presents a compelling model for urban revitalization in the age of sustainability.

From Waste to Wellness: A New Urban Vision

The starting point of Vertical Green is a stark reality—waste production is soaring globally, and traditional building practices are no longer viable. The U.S. alone generates 750 kilograms of waste per person each year, much of it construction-related. Meanwhile, city cores are littered with parking garages rapidly approaching obsolescence due to the rise of autonomous vehicles, ride-sharing, and remote work.

Vertical Green seizes this opportunity to reduce waste and carbon emissions by retrofitting a multistory parking garage into a mixed-use modular housing complex. The goal is not just to preserve what exists but to radically enhance it through sustainable materials, green facades, and energy-efficient systems.

Modular Construction: Flexibility and Sustainability in Form

The project employs prefabricated modules—each constructed off-site to minimize construction impact and carbon footprint. These modules, available in 20'x30' and 17'x17' configurations, are designed with cantilevering capabilities, curtain walls for daylight penetration, and cozy interiors that redefine compact living.

Modules are delivered by flatbed trucks and lifted into place with cranes, stacking efficiently and interlocking like pieces of a sustainable puzzle. Curtain walls maximize sunlight, while natural ventilation and green terraces create a sense of openness and community.

Adaptive Reuse: The Parking Garage Reimagined

Instead of demolishing the old structure, Vertical Green preserves roughly 65% of the existing garage. Structural modifications include the removal of some vertical columns and ramps, replaced by vertical gardens and circulation pathways for pedestrians. This transformation breathes new life into grey infrastructure without the embodied energy costs of rebuilding from scratch.

A verdant vertical garden covers the exterior walls, not only softening the structure's urban presence but also improving air quality and insulating the modules.

Material Consciousness

The palette of materials reflects the project's ecological ethos. Light gauge steel frames provide structural integrity while reducing weight. Wood paneling on the exterior offers a natural aesthetic, and OSB sheathing and waterproof membranes ensure resilience. Every component is chosen with circularity and long-term sustainability in mind.

Aluminum guardrails and modular detailing further highlight the fusion of functionality with eco-conscious design.

Urban Impact and Social Integration

By repurposing existing urban infrastructure, Vertical Green proposes a scalable solution for cities grappling with land scarcity, unaffordable housing, and ecological degradation. The inclusion of retail levels, green public plazas, and pedestrian zones invites community interaction and a deeper connection to place.

In an age where sustainable housing must be compact, efficient, and resilient, Vertical Green’s approach to modular architecture demonstrates how design can be a powerful agent for transformation—economically, environmentally, and socially.