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Exploring Tactile Concrete Surfaces in Subterranean Community Spaces

Authors:
Heeyoung Lee, Sukho Jang
Exploring Tactile Concrete Surfaces in Subterranean Community Spaces
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Defined by its tactile concrete surfaces and versatile underground spaces, this architecture fosters intimate community interaction through functional design that adapts to various public needs.
5 key facts about this project
01
Emphasis on the sensory interaction of rough concrete surfaces throughout the interior.
02
Strategic use of dark metal accents to create dynamic contrasts in light and shadow.
03
Underground configuration enhances intimacy while promoting community use.
04
Unique geometric frames introduce playful spatial dynamics and perception shifts.
05
Flexible design of multi-purpose hall accommodates diverse community functions.

### Overview

"Walk into Concrete, Intimate Immensity" is situated in an urban context, where it serves to enhance community interaction through a thoughtful exploration of concrete as a primary material. The design intention focuses on revealing the unique textural qualities and emotional resonances of concrete, inviting users to engage with the space on a sensory level. The project is structured to respond to common urban site constraints, incorporating multi-level spaces and underground environments that promote a deeper engagement with the architectural experience.

### Materiality and Spatial Engagement

**Materiality:** Concrete plays a central role, emphasizing its durability and adaptability while accentuating its sensory attributes. The design employs darkened metal accents to create contrasting visual dynamics, enriching the interplay of light and shadow across the surfaces. Specialized lighting elements are utilized to enhance these contrasts, further shaping perceptions of the space's architectural configuration.

**Spatial Organization:** The layout of public spaces, such as cafeterias and conference rooms, is strategically positioned underground to evoke intimacy and introspection. This scheme encourages visitors to traverse the building through spacious concrete corridors, echoing the theme of unveiling the intrinsic qualities of concrete. The multi-purpose hall is designed for flexibility, catering to diverse community needs while maintaining visual coherence throughout the facility.

### User Experience and Cultural Reflection

**Tactile Interaction:** The design promotes visitor engagement through various textures and forms, allowing for an exploration of tactile experiences often overlooked in contemporary architecture. Unique visual constructs, including abstract geometric frames, juxtapose with the solid, monolithic concrete, prompting visitors to reconsider the traditional boundaries of weight and lightness.

**Cultural Commentary:** By elevating concrete beyond its structural function, the project invites a re-evaluation of materiality in architecture, stimulating emotional connections that resonate with broader cultural themes. This approach fosters an ongoing dialogue about the perception of built environments and encourages a reflective engagement between the visitor and the architecture, contributing to the evolving narrative of architectural design.

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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 €
Eligibility Open to all
Final registration deadline 30 October 2025

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