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Central Concrete Tube and Oculus Connect Subterranean Exhibition Space with Natural Light

Authors:
Hankang Jin, Dinullah Bayu Ibrahim
Central Concrete Tube and Oculus Connect Subterranean Exhibition Space with Natural Light
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A central concrete tube and an oculus create a dynamic connection between subterranean exhibition spaces and natural light, facilitating a cultural hub for community interaction and engagement.
5 key facts about this project
01
A central concrete tube integrates structural and aesthetic elements, enhancing spatial connectivity.
02
An oculus allows natural light to illuminate subterranean exhibition areas, creating a dynamic atmosphere.
03
The design incorporates varied concrete textures, including polished and rough finishes, for visual interest.
04
Strategic openings throughout the structure facilitate seamless movement and interaction among visitors.
05
Natural wood finishes are utilized in key interior spaces to soften the overall architectural expression.

### Project Overview

Located in Piazza Galeno, the design integrates contemporary architectural expressions with elements drawn from Rome’s historical context, particularly reflecting the grandeur of the Pantheon. The intent is to create a dialogue that fosters interaction among culture, nature, and the human experience, inviting visitors to engage with both the structure and its surroundings.

### Spatial Arrangement and Connectivity

The multi-level configuration of the structure strategically utilizes subterranean spaces due to height limitations in the area. The layout encourages fluidity in movement and interaction:

- **Levels and Functions:**
- **Level 0** serves as a public urban space.
- **Level -1** functions as a transitional area leading to the main hall.
- **Level -2** accommodates a multifunctional hall and exhibition space.

A central concrete tube extends from the structure's apex down to its lowest level, fostering a seamless connection between above-ground and below-ground areas. The design includes carefully placed stairways to facilitate movement among levels and large openings that introduce natural light, enriching the internal environment.

### Material Selection and Aesthetic Details

The project employs a diverse palette of materials, enhancing its architectural expression:

- **Exterior and Interior Materials:**
- Polished precast concrete walls and floors provide durability and aesthetic appeal.
- Rough-brushed concrete walls feature integrated artistic textures.
- Concrete embedded with glass elements adds visual interest.
- Natural wood finishes are utilized in conference rooms and café areas to warm the interior atmosphere.

The material choices and textures contribute to a cohesive sensory experience, reflecting both the essence of Roman architecture and contemporary functional requirements.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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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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