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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 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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