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Natural Light Sanctuary Encased in Concrete with Vertical Gardens

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Natural Light Sanctuary Encased in Concrete with Vertical Gardens
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Encompassing vertical gardens and optimized light management through large glass facades, the residence redefines modern living by seamlessly integrating nature with functional spaces for work and relaxation.
5 key facts about this project
01
Incorporates vertical gardens within concrete walls for improved biodiversity and aesthetic appeal.
02
Utilizes large glass facades to optimize natural light while maintaining thermal comfort.
03
Features a bent A-frame design that enhances structural integrity and spatial dynamics.
04
Integrates natural materials, including local wood finishes, to strengthen environmental connection.
05
Prioritizes indoor-outdoor flow through open layouts and strategically placed courtyards.

## Overview
Located near the equator, Two Walls House is designed to respond to the unique patterns of light and shadow characteristic of its environment. The intent of the design is to create a balanced space that accommodates both work and relaxation, facilitating a connection between indoor and outdoor areas while maximizing natural light.

### Spatial Strategy
The architectural concept leverages the duality of functionality and aesthetics by utilizing two primary walls to optimize the flow of natural light. This strategic layout minimizes the need for artificial lighting and fosters a serene atmosphere suited for both personal and professional activities. The open floor plan encourages movement among living areas, promoting versatility and adaptability to the occupants’ varying needs. A key feature is a central courtyard that integrates greenery into daily life, reinforcing the indoor-outdoor relationship.

### Materiality and Sustainability
Material selection plays a crucial role in defining the house's identity while ensuring environmental compatibility. Concrete serves as the primary structural element, providing durability and a modern aesthetic. Large glass surfaces enhance transparency and facilitate light penetration, bridging the gap between the interior and the natural surroundings. Sustainable practices are further emphasized through vertical gardens, which not only contribute to energy efficiency but also enhance the visual appeal. Natural wood finishes are used within the interiors to create a warm atmosphere, improving the sensory experience of the spaces.

### Light Management
The design incorporates an analysis of sun pathways, allowing for a deep understanding of solar orientation and its impact on light distribution throughout the day. East-facing windows capture morning light, while strategically placed overhangs manage direct midday sunlight, ensuring thermal comfort without sacrificing illumination. Large openings on the western side are designed to frame sunset views while maintaining privacy, thus enriching the experience of the living spaces.

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The Next House: USA
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100,000 € Prize Fund / Kingpsan Edition #11
Buildner's Unbuilt Award 2026
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100,000€ Prize / 2026

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.

The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 19 November 2025

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