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Subterranean Gathering Spaces Crafted with Natural Stone and Sustainable Timber

Subterranean Gathering Spaces Crafted with Natural Stone and Sustainable Timber
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Crafted from natural stone and sustainable timber, this underground complex transforms traditional refuge spaces into vibrant community gathering areas designed for public engagement and cultural expression.
5 key facts about this project
01
Utilizes subterranean spaces historically linked to community resilience.
02
Features adaptable performance areas catering to diverse cultural activities.
03
Constructed with locally sourced natural stone for context-specific relevance.
04
Integrates educational facilities within a refuge design for dual functionality.
05
Promotes sustainability through the use of eco-friendly timber materials.

## Project Overview
The SUBTERRA project, situated in Kharkiv, Ukraine, seeks to revitalize Freedom Square and its neighboring areas through innovative architectural design rooted in resilience and community engagement. Inspired by the city's historical underground spaces that provided refuge during periods of adversity, the project aims to transform public areas into platforms for civic expression, educational initiatives, and cultural activities while reflecting the identity of the Ukrainian people.

## Spatial Strategy
The design integrates public expression and cultural identity within a flexible framework that emphasizes social interaction. Key features include adaptable performance and exhibition spaces, equipped to host a variety of community events ranging from art displays to educational workshops. The spatial organization fosters dialogue and connection among individuals, reinforcing a sense of community within the urban environment. Specific areas, such as the community circles, are designed for intimate gatherings, offering privacy without isolation.

## Materiality and Function
The architectural vision incorporates a selection of materials that prioritize sustainability and local cultural heritage. Reinforced concrete serves as the primary structural element due to its strength and durability, while glass facades ensure transparency and connectivity between indoor and outdoor environments. The integration of natural stone finishes honors local traditions, and sustainable timber in selected areas adds warmth to the design. A notable feature is the underground library and dual-purpose shelter, which provide essential resources while also ensuring safety during emergencies. The careful selection of materials and structural details underscores the project’s commitment to adaptability and resilience in the face of changing community needs.

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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.

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